PanAm DC-3 Flight Instructor's Guide



Revised July 3l, l952




(Revised July 3lst, l952)



Question & Answer Set 4 thru 27

System Instrument Course 28 thru 32

Flight Training Syllabus for ATR, Type Rating or

Periodic Check 33 thru 38

Flight Training Syllabus for Copilot Qualification 39 thru 42

Flight Technique for ATR – Type Rating – Periodic Check 43 thru 53

NOTE: This DC-3A Flight Instructor's Guide was excerpted

from a larger manual that included similar information on

the DC-4, CV-240, and C-46F aircraft.

The original Flight Instructor's Guide is a manually-typed

manuscript which you will quickly notice was prepared by

five different typists, for the format of no two of the

sections are similar, It is as faithful of a reproduction as

one could create with a scanner, missing only the type-overs of

letters that resulted when the original Pan-Am document was

proofed. Even the lower-case "L" is used for "ones" since

typewriters of that era had no "one" key on them. 

After the scanning, this document need to be converted to HTML for the Internet.

This manual was first released on December l5, l947 under

the signature of W. T. Turso, Pan American's Chief Flight

Instructor. All instruction was in the Miami, Florida area.



(Revised 8-l-52)



Fuel System 4 - 6

Engines 6 thru 10

Landing Gear 10 thru 12

Flaps 12 – l3

Brakes l3 – l4

Propellers 14 – l5

Hydraulic System l5 – l6

Ignition l6

Feathering l6 - 17

Oil System l7

Electrical System l8

Flotation l9

Ventilation System and Heating l9 - 20

Instruments 20 – 21

Emergency Equipment 2l - 22

Flares 22 - 23

Flying 23 - 24

Load Distribution 24

Oxygen Equipment 25 thru 27.



l. Q. Enumerate the fuel system drains which should be in-

spected for water and sediment.

A. Four fuel tank sump drains. Two fuel line strainers.

Two carburetor screens.

2. Q. When should this inspection be made?

A. Fuel tank sumps shall be drained immediately prior

to each departure after the final refueling op-

eration is completed (MM DC-3A 40-2). Fuel line

strainers shall be drained at terminal (50 hrs.)

and base services (225 hrs.) (MM DC-3A 40-2).

Carburetor screens are a service item on base service.

3. Q. What is the capacity of each fuel tank?

A. LM-2l0, LA-20l, RM-2l0, RA-20l.

4. Q. Which tanks can be dumped? How many gallons can

be dumped?

A. LA and RM 4ll gallons.

5. Q. What is the dumping rate? When should fuel be dumped?

A. About 50 GPM. CAR. 6l.763 - NO FUEL SHALL BE DUMPFD




6l.78ll - requires that the proper control station

be kept fully informed regarding the progress of the

flight and that a written report be submitted the

Operations Manager.

6. Q. What is the maximum amount to be dumped to reduce

the load to normal gross?

A. 25200 minus 24400 equals l33 gallons.


7. Q. Where are the dump valve controls located?

A. Dump valves are located under the small door on the

floor between the Pilot's and Co-pilot's seat.

8. Q. Does the dump chute nozzle return to normal position

when the dump valves are pulled to the closed position?

A. No. Dump chute nozzle must be returned manually to

normal position when the plane is on the ground.

9. Q. Where is the cross-feed control located?

A. The cross-feed control is located on the lower right

corner of the pedestal.


l0. Q. Assume a failure of the right fuel pump and fuel in

the right main tank only. How should the fuel valves

be set?

A. Set left engine selector valve to RIGHT MAIN tank,

cross-feed valve ON, and right engine selector OFF.

ll. Q. Under what conditions are passengers permitted to re-

main aboard during refueling?





l2. Q. How should the plane be flown to get the greatest

amount of fuel out of the tanks?

A. Wing slightly high on the side of the tank being


l3. Q. If fuel pressure failed on one engine immediately after

take-off what should the co-pilot do?

A. Work the wobble pump or boost pumps and be prepared

to change the fuel valves as ordered by the captain.

l4. Q. What is the normal fuel pressure? (a) Wobble pump

for starting? (b) Engine Pump?

A. (a) PAA Manual, 5-6 psi. (b) l4-l6 psi. Desired

l5-l5.5 psi.

l5. Q. In what order should the tanks be emptied?

A. Continue using main tanks after take-off until l75

gallons remain in each, then use the auxiliary tanks.

Always shift to the main tanks for landing and


l6. Q. What is the formula for fuel distribution shown on

the placard near the left engine selector valve?


EACH MAIN DOWN TO l75 gallons. Minimum total main

tank fuel: l4l plus AUX. FUEL or 200 gallons minimum.


l7. Q. What is the minimum fuel for take-off?

A. Minimum fuel for take-off is 200 gallons. l00 in each

main tank.

l8. Q. Where is the fuel measuring stick carried?

A. Fuel measuring stick is carried on the galley bulk-

head at the rear of the cabin near the door.


l9. Q. What provision is made for carrying fuel samples?

A. Fuel samples when carried must be in regulation cans

provided for that purpose, and must be placed in the

rack in the rear baggage compartment. (Space for

two cans).


l. Q. Why should the engines be turned over by hand after

standing for two hours before attempting to start?

A. To determine whether oil has drained from the crankcase

past the piston rings into the bottom cylinders during

the time the engine is standing idle. If the com-

pression space becomes sufficiently filled there is a

possibility of damaging the engine on starting unless

the oil is drained out of the exhaust port (or spark-

plug hole) as the propeller is turned by hand.

2. Q. What manifold pressure is permitted for checking

magnetos (a) on ground run-up (b) in flight?

A. AMB pressure. If not satisfactory, increase to 33

inches and then return to AMB pressure for individual

magneto check (b) from 25 to 30 inches with mixture in

take-off and climb position.

3. Q. Itemize the cowl flap positions. When is each used?

A. OPEN - starting, warm-up, taxiing, parking at terminals.

OFF - not to be used on the ground as thermal expansion

will build up intense pressures. This position is used

in flight when necessary to maintain cowls wider than

trail. To prevent engine overheating. TRAIL – Take-

off and climb. CLOSED - Cruising, after cylinder heads

have dropped to normal cruising temperatures.

4. Q. What is the minimum head temperature for run-up on the


A. l20o centigrade.

5. Q. What is the minimum head temperature for take-off?

Maximum before starting take-off?

A. l50o centigrade. 205o C., during take-off and climb –

l50 - 260o centigrade.

6. Q. What ground RPM is normal at 30" on both magnetos? On

one magneto?

A. 2325 R.P.M. From 50 to 75 R.P.M. Less.

7. Q. What are the normal cruising pressures and temperatures

of the oil?

A. 75 - 95 psi @ 2050 RPM plus or minus 5 psi/5o variation

from 70o C. Temp. 60o to 85o.


8. Q. At what RPM should the engines be warmed up?

A. 600 - 800 RPM for about 30 seconds or until oil

pressure starts increasing and then to l000 RPM.

9. Q. How much manifold pressure should be used for take-off?

A. 47 inches at 2750 RPM.

l0. Q. Outline the procedure for reducing power after take-off.

A. (a) Maintain take-off power until indicated airspeed

is l08 MPH and gear is coming up.

(b) Reduce MP to 35 inches.

(c) Reduce RPM to 2450. (Avoid 2450 to 2700 RPM for

protracted periods because of undesirable vibration


(d) Let airspeed increase to l20 MPH.

(e) Reduce MP to 30-32 inches, at 300 ft. day, or 500 ft.


(f) Reduce RPM to 2050.

(g) Climb at l30 MPH, 30-32 inches MP, 2050 RPM

to 5000 ft.

ll. Q. If the head temperatures are too hot while climbing

what may be done to make them run cooler?

A. (a) Open cowl flaps slightly wider than TRAIL. (If

opened too wide buffeting will be induced, which re-

duces performance.)

(b) Increase airspeed by reducing rate of climb.

(c) Reduce manifold pressure.

(d) Use richer mixture.

l2. Q. Describe the procedure for stopping hot engines.

A. (a) If the heads are below 205o C. set throttles for

l000 RPM and move mixture controls to IDLE CUT-OFF.

(b) When engines have stopped, cut ignition switches.

CAUTION - Do Not Open Throttles Until Engine Has


l3. Q. If the engines do not stop, what should be done?

A. At l000 RPM turn ignition switches OFF.

l4. Q. What is the propeller speed when the tachometer reads

l600 RPM?

A. Propeller turns 900 RPM.

l5. Q. What is the supercharger speed when the tachometer

reads l000 RPM? What does this suggest regarding

changes in RPM?

A. Impeller turns 7l50 RPM. Move throttles slowly so

that engine speed changes are gradual.


l6. Q. Fill in the necessary data for SlC3G engines.

TAKE-OFF HP , "MP, RPM, for minutes

METO HP , "MP, RPM, for minutes

Normal 550, 2050 RPM, BMEP

600, 2050 RPM, BMEP

650, 2050 RPM, BMEP

A. TAKE-OFF HP l200, 47" MP 2750 RPM for l minute

METO HP l050 4l.5" (sea level 2550 RPM for

indefinite time.)

Normal 550 28.2" 2050 RPM ll6.2 BMEP

600 29.9" 2050 RPM l27 BMEP

650 3l.7" 2050 RPM l37.3 BMEP

l7. Q. What octane fuel is used?

A. 9l octane when available. Otherwise, l00 octane is

used and MAP set l" hg lbs.

l8. Q. Will the DC-3A induction system collect ice? How may

it be detected? How may it be removed?

A. Records show that the DC-3A induction system has

collected ice when flying between cloud layers at

l9oC, free air temperature.

When icing occurs, the engines do not remain well

synchronized, manifold pressures drop, and a

considerable difference in throttle position may be

required for equal manifold pressures.

Ice may be removed by application of carburetor

heat. In emergency cases, when carburetor heater

is not working, leaning the mixture to induce back-

firing may be necessary to get heat into the in-

duction system.

l9. Q. If the engines are underprimed in starting, does

moving the throttles repeatedly back and forth

correct this condition? Why?

A. No. The acceleration pump on the fuel injection

carburetor is operated by pressure changes caused

by venturi action, not by throttle.

20. Q. Will the SlC3G engine start if the ignition booster


A. Yes, in warm temperature with starting batteries

well charged, but F/A ratio must be carefully con-

trolled. The engine should be slightly overprimed

and then allowed to clear out with mixture in cut-

off as the starter turns the engine.


2l. Q. What are the four positions of the carburetor manual

control? When is each used?

A. IDLE CUT-OFF - For stopping engines, for clearing

when overprimed.

CRUISE - For cruise or descent within normal

cruising HP limits and for taxiing and idling.

TAKE-OFF & CLIMB - For take-off climb, single

engine operation, approach and landing.

EMERGENCY - To by-pass the automatic mixture

control unit and to provide full rich sea level

mixtures. Used when the automatic unit is mal-


22. Q. What is the maximum RPM permitted on the approach

for landing?

A. 2325 RPM. This P & W RPM limitation with low

manifold pressure.

23. Q. (a) What is the maximum permissable cruising BMEP?

(b) What is the corresponding HP at 2050 RPM at

this BMEP?

A. (a) l40 BMEP (b) 663 HP.

24. Q. (a) What is the approximate difference in HP per inch

of manifold pressure? (b) What is the corresponding

difference in BMEP?

A. (a) About 25 HP. (b) about 6 psi BMEP. (If cruising

at 500 HP and it is desired to use 550 HP the mani-

fold pressure should be increased approximately two


25. Q. What is the take-off BMEP? The METO BMEP?

A. Take-off BMEP = 433 x l200 = l89.3 psi.


Meto BMEP = 433 x l050 = l78.4 psi.


26. Q. What is detonation? How may it be induced? How may

it be reduced?

A. Detonation is an inefficient type of combustion which

causes extremely high peak pressures, increases

specific fuel consumption, induces overheating of the

cylinder heads and pistons and may cause engine

failures. Factors contributing toward detonation are:

(a) Low octane fuel

(b) Overheated cylinder heads. This starts a

vicious circle since detonation in turn causes

more over-heating of the heads.

(c) Excessively high manifold pressure with low RPM

which causes BMEP limits to be exceeded.


Detonation may be reduced by the following:

(a) Use high octane fuel.

(b) If plane is climbing, increase the airspeed by

reducing the rate of climb.

(c) Reduce power (and BMEP) by reducing manifold

pressure without reducing RPM.

(d) Use richer mixture.


l. Q. What signals indicate correct GEAR DOWN position?

A. Signals indicating correct GEAR DOWN position:

(a) Pressure on the forward gauge (minimum 500 psi)

(b) Green light.

(c) Visual inspection to confirm that wheels are in

normal position.

(d) Warning horn NOT sounding when throttles are

pulled back.

2. Q. At what minimum pressure may the valve be closed

when lowering the wheels?

A. 500 psi. Full regulator is not excessive.

3. Q. The instructions require the landing gear handle

and the flap handle to be spread apart (gear lever

DOWN, flap lever UP) when the plane is left standing.


A. When the plane is parked in the sun or engines are

being warmed, temperature rise causes excessively

high pressures to build up in the extension and re-

traction lines of the landing gear and flap.

Putting the landing gear lever down and the flap

lever up opens the hydraulic lines to the reservoir

and the accumulator where the hydraulic expansion is


4. Q. What are the three positions of the landing gear

latch? When is each position used?

A. POSITIVE LOCK is used to complete locking the

landing gear DOWN and it is left in this position

when the plane is on the ground. POSITIVF LOCKED

position must be used prior and during take-off.

After the wheels have been raised and the retraction

handle returned to NEUTRAL, the latch automatically

returns to spring locked position. The latch must

be left in the spring locked position while the

wheels are up. The latch is left SPRING LOCKED while

lowering wheels. LATCH RAISED position is used only

when the wheels are to be raised.

5. Q. If the landing gear latch is moved to the LATCH

RAISED position the wheels may be lowered but the


locks will not engage. How may this condition be


A. The latch is held in the LATCH RAISED position by

a dog located at the side of the valve. By

pulling forward on knob attached to it the dog may

be tripped allowing the latch to return to the

SPRING LOCKED position. The latch may then be

pushed to the POSITIVE LOCKED position.

6. Q. How would you know when the safety pins are being

used on the landing gear?

A. By visual inspection. Connected to the safety pin

is a red tag which is clamped on to the landing

gear strut. It is visible from the pilots'


7. Q. When should the safety pins be removed?

A. Safety pins are always removed before engines are

started. The pins must not be pulled unless pressure

on the extension strut is 500 psi and the retraction

lever is set to NEUTRAL, the latch in POSITIVE

LOCKED position, green light burning, and confirma-

tion received from a responsible person in the


8. Q. When operating the landing gear why should the

handle be placed in full DOWN or full UP position?

A. Full DOWN or full UP position of the retraction

handle must be used fully open the valves to permit

fastest operation.

9. Q. Can the wheels be lowered with the latch in the

horizontal position?

A. With the latch POSITIVE LOCKED the wheels may be

lowered but the latches will prevent the wheels from

going to full down position and the locks will not


l0. Q. List in correct sequence the movements you would

make in raising the wheels on take-off?

A. (a) Raise safety latch to the LATCH RAISED position.

(b) Retraction handle out and UP.

(c) After wheels are up and pressure built up to 500

psi or above, return retraction handle to neutral.

ll. Q. List in correct sequence the movements you would

make in lowering the wheels before landing.

A. At the command DOWN GEAR the movements are as


(a) Check latch handle for SPRING LOCKED position.

(b) Landing gear handle DOWN.


(c) When the pressure in the forward hydraulic

gauge reaches at least 500 psi. return the

handle to neutral.

(d) Push the safety latch to the POSITIVE LOCKED


(e) Verify that green light is on.

(f) Look at the wheels to see that they are in the

normal DOWN position.

l2. Q. What is the purpose of the warning horn?

A. The warning horn sounds when the throttles are

pulled back if the wheels are not properly locked

down for landing.

l3. Q. Can the plane be landed safely with both latches

broken? What precaution should be exercised in

handling the brakes?

A. The plane can be landed safely with both safety

latches broken if normal pressure is available.

With the retraction handle in NEUTRAL the use of

brakes will cause an increase in the indicated

strut pressure if the latches are broken. APPLY


NOT EXCEED l500 psi.

l4. Q. Can the landing gear be lowered if a line fails

between the supply tank and the engine hydraulic


A. Emergency extension may be accomplished by use of

the hand pump.

l5. Q. Can the landing gear be lowered without oil in the


A. In the event of complete loss of hydraulic oil

put the retraction handle DOWN and zoom the plane

to snap the wheels down and engage the latches.

Return the handle to NEUTRAL and if the warning

light is green the landing gear is secured by the

latches. If light remains red, raise latch to

LATCH RAISED position, lower retraction handle

and work hand pump. Continue pumping while putting

retraction handle back in neutral, trip latch dog

so that the latch returns to SPRING LATCHED position.

If light changes to green gear is safe for landing.


l. Q. Where is the flap position indicator?

A. The wing flap indicator is on the left side at the

lower edge of the instrument panel.


2. Q. What would be the result of leaving the flap handle

down on the ground with engines stopped?

A. System pressure will remain the same.

3. Q. What safety feature prevents lowering the flap at

too high airspeed?

A. The pressure relief valve is used to prevent

lowering and damaging of the flaps at more than

ll2 MPH.

4. Q. Why do the flaps go up slowly?

A. A restriction has been placed in the "flap up" line

to prevent the sudden reduction in lift and subse-

quent high rate of descent which would occur if the

flap were retracted quickly.

5. Q. At what airspeed is lowering of the flaps permitted?

A. ll2 MPH is the maximum indicated airspeed for

lowering flaps.

6. Q. What is the difference in angle of attack of the

wing for equal lift coefficient between flap up

and flap down?

A. About 7 degrees.


l. Q. What is the minimum hydraulic pressure for satis-

factory braking?

A. Minimum hydraulic pressure for satisfactory braking

is 450 psi.

2. Q. What should be the position of the foot on the

rudder pedal during take-off? Why?

A. Lower the toes from the brake pedal to the rudder

bar (bottom of pedal) and have the heels on the

floor and sufficiently far back so that only the

toes are on the bottom of the pedal in order to

avoid all UNCONSCIOUS use of the brakes.

3. Q. If the hydraulic pressure pump on the left engine

fails while taxiing how would pressure for the brakes

be obtained?

A. Move the hydraulic engine selector valve so as to

use the right engine hydraulic pump.

4. Q. Can the brake lock be set or released from the

pilot's side? Co-pilot's side?

A. The brake lock can be set and released on a

properly rigged DC-3A from the pilot's side only.


5. Q. How is the brake lock set? What is minimum system

pressure to satisfactorily park the brakes?

A. To set the parking brakes depress the toe pedals

and pull out the knob located on the pedestal. Hold

the knob until the toe pressure has been released.

500 psi system pressure is necessary.

6. Q. Should the brake lock be set in flight?

A. The parking brake lock should never be set in flight

7. Q. What prevents the wheels from being turned by the

slipstream in flight?

A. A small loop of belting material presses against

the tire and acts as a brake to prevent turning

of the wheels by the slipstream in flight.

8. Q. When must the hydraulic hand pump be used for brakes?

A. The hydraulic hand pump must be used for brakes

under the following conditions:

(a) When brakes are used repeatedly and engines are

not running.

(b) When hydraulic pumps fail.

(c) When line from supply tank to engines is broken.

(d) At any time the pressure drops too low for

satisfactory operation of the brakes with the

engines inoperative.


l. Q. What is the propeller low pitch setting? Normal

cruising angle?

A. Low pitch l8o. Normal cruising pitch 29o.

2. Q. Is engine oil used in constant speed governing?

What is the pressure at the propeller?

A. Engine oil is used in constant speed governing.

Engine oil pressure is boosted in the ratio of 75

to 200 for governing purposes.

3. Q. To what part of the constant speed propeller

mechanism is the control in the cockpit connected

and what does it do when moved?

A. The propeller control in the cockpit is connected

by flexible cables to a pulley at the side of the

governor housing. The pulley is on a shaft with a

pinion gear which operates through a rack to vary

the spring force on the flyball governor.


4. Q. At overnight stops should the propellers be left

in low pitch or high pitch?

A. Propellers should be left in low pitch at all

stops including overnight stops.

5. Q. Assume landing made with engines synchronized at

2050 RPM. Without moving propeller controls,

plane is parked and engines stopped. In what

pitch should blades be found? Low? Intermediate?


A. Low.

6. Q. If the governor cable breaks, at what RPM will the

engine be governed?

A. l900 to 2200 RPM.


l. Q. What pressure is registered on the front gauge?

The rear gauge?

A. The forward hydraulic gauge indicates the pressure

on the landing gear extension strut. The rear gauge

indicates the amount of pressure in the accumulator.

2. Q. What is the normal tolerance range for the un-

loading setting of the hydraulic pressure regulator?

What is the desired setting?

A. Normal pressure range is between a cut-in pressure

of 650 psi and cut-out pressure of 850 psi with l050

psi system pressure relief.

3. Q. When should the hydraulic globe valve be opened?

A. The hydraulic globe valve located above the flap

control valve should be opened only when it is

desired to build up pressure in the accumulator

with the hand pump.

4. Q. When maintenance work requires the hydraulic

pressure to be reduced to zero, how is it accom-


A. Hydraulic pressure may conveniently be reduced to

zero by repeated operation of the flaps with the

engines inoperative.

5. Q. Are the hydraulic engine driven pumps working

constantly against the pressure in the hydraulic

system when no use is being made of the system? Why?

A. No. When not required to pressurize the accumulator

the discharge from the engine pumps is by-passed

at negligible pressure to the hydraulic reservoir.


6. Q. By what means is it determined if sufficient hy-

draulic oil is aboard?

A. The quantity of hydraulic oil is indicated by the

sight gauge at the side of the reservoir.

7. Q. Does the pump which operates the automatic pilot

also supply pressure to the hydraulic system?

Where is the placard which explains this?

A. When the pump on one engine operates the automatic

pilot, the pump on the other engine operates the

hydraulic system. This may be reversed by changing

the position of the engine hydraulic pump selector

valve, The placard is located above the engine

pump selector valve on the hydraulic panel.


l. Q. Which sparkplugs are fired by the left magneto?

A. Rear sparkplugs are fired by the left magneto,

2. Q. How many lobes has the magneto cam? Are the lobes

equally spaced? Why?

A. The magneto cam has l4 lobes. The lobes are un-

evenly spaced. Uneven lobe space is necessary

because of connecting rod eccentricity to insure

that all cylinders fire at exactly the same point

(25 degrees) before top center.

3. Q. What is the purpose of the secondary condenser?

A. The secondary condenser is used to smooth out the

high voltage peaks which otherwise would vary

considerably because of unequal lobe spacing.

4. Q. Will the engine run with ignition switches off?

A. Yes. On the booster as long as it is held in.


l. Q. Where are the feathering controls located? Are

they labeled?

A. Feathering controls are located in the overhead

panel in the cockpit, on either side of the magneto

switches. The controls are labeled.

2. Q. What would be the effect of feathering the wrong


A. Feathering the wrong propeller would nullify the

l050 HP which normally would be available for

single engine flight.


3. Q. Can feathering be discontinued after the process

has been started?

A. Feathering can be discontinued by pulling out the

feathering button if done before feathering has

progressed too far.

4. Q. What is the source of supply for feathering oil

and pressure?

A. The engine oil tank supplies the oil for feathering.

5. Q. How much pressure is needed for unfeathering? How

long should the feathering button be left in?

A. Unfeathering requires about 600 psi, Hold feather-

ing button engaged until engine is turning 600-800 RPM.

6. Q. In case a broken oil line to the engine occurs,

how much oil is left in the tank for feathering?

A. A standpipe in the oil tank keeps 2 gallons in the

tank for feathering at all times available to the

feathering pump only.


l. Q. What is the capacity of each oil tank? How much

oil is usually carried? Where is the feathering

oil supply?

A. 0il tank capacity - 32 gallons each. 0nly 29

gallons can be put in. 0il usually carried - l8

gallons in each tank. The last 2 gallons at bottom

of tank are below engine oil outlet.

2. Q. How is the oil temperature controlled?

A. Oil inlet temperature is controlled between 65 –

75o C, by a sylphon type thermostat. When flying

through cold air it is necessary to augment this

control by manually closing the oil cooler shutters.

3. Q. Under what conditions in flight could "OIL IN"

temperature rise abnormally high in flight?

A. Conditions which could cause abnormally high OIL

IN temperature:

(a) Obstructions, such as leaves, thrown into the

oil cooler by the propeller. Most apt to occur

during warm-up.

(b) Congealing of oil in radiator tubes.

(c) Faulty thermostat which fails to by-pass the oil.

4. Q. What is minimum oil temperature for ground check?

Take-off? Maximum at start of take-off? At any


A. 40oC., 50oC., 85oC., 95oC.



l. Q. What is normal charging rate of each generator?

When does the overload switch operate? What are

the three positions of the battery master switch


A. The rated continuous output of the generator is

50 amps. The overload switch operates at l00 amps

for 30 seconds.

Lever forward, BATTERY CART

Lever vertical, OFF


2. Q. What action releases the lock which holds the lever?

A. The lock is released by pressing the knob on the

top of the lever.

3. Q. Two batteries are carried; where are they located?

A. One battery is in the left lower compartment, one

in the companionway by the baggage loading door.

4. Q. What is the voltage of each battery. What is the

voltage when the batteries are in parallel?

A. Battery potential is l2 volts. The batteries are

paralleled and the potential is still l2 volts.

5. Q. Where is the charging panel located? If generator

voltage indicates too low what should be done?

A. The charging panel is located on the overhead panel

in the cockpit above the co-pilot. Field may be


6. Q. Why has the CABIN SIDE LIGHT switch been wired in

the ON position?

A. The cabin side light solenoid is spring loaded to

the ON position. Continuous current is necessary

to keep the solenoid switch OFF, Electrical energy

is conserved by leaving the CABIN SIDE LIGHT switch

ON at the electrical panel.

7. Q. In case of a water landing, how may one battery be

conserved for radio use only?

A. In case of a water landing, turn selector to

"Emergency" and leave radio on under-water battery

until it is dead. Then trip radio toggle on

selector panel to "Emergency radio" and continue

to use radio as usual.



l. Q. How long should the DC-3 float if landed on water?

A. If structurally undamaged the DC-3 should float for

an indefinitely long period of time.

2. Q. How many flotation tanks has the DC-3?

A. There are three flotation tanks in each DC-3 wing

that extend to the wing tip Joints. Empty fuel

tanks like-wise contribute to the plane's buoyancy.


l. Q. Where is the main ventilation air inlet valve?

How is it controlled?

A. The main ventilation air inlet valve is located in

the nose of the fuselage. The control for this

valve is located at the lower edge of the instrument

panel in front of the co-pilot, and is safety-wired

in the open position on aircraft equipped with

ventilating hot air dump valves.

2. Q. How is the air heated?

A. Cabin air is heated as it passes through a radiator

in which is condensed the steam produced in a flash

type boiler located in the exhaust stack of the

right engine.

3. Q. How is the cabin temperature controlled?

A. On the bulkhead at the front of the cabin is a

control which operates a valve to vary the pro-

portions of heated and unheated air routed into the

cabin ducts thus controlling the cabin temperature.

4. Q. When the air conditioner is connected to the plane

on the ground how should the air valves in the

plane be set?

A. When the air conditioner is connected set the air

valves as follows:

(a) Leave the air inlet valve on in the fuselage

nose when safety wired, and turn OFF when not


(b) Air vents above the cabin seats OPEN.

(c) Cockpit cold air valve ON.


5. Q. Give the location and pressure settings for the

following: (a) pressure regulating valve (b) pop-

off valve (c) pressure relief valve

A. (a) PRESSURE REGULATING VALVE - located above

supply tank, l5 psi.

(b) POP-OFF VALVE - located above supply tank,

blow -off 55 psi, blow down 50 psi.

(c) PRESSURE RELIEF VALVE - located on the steam line

in right nacelle, blow off 45 psi, blow down 40 psi.

6. Q. How much water is used in the heating system?

What indicates a full system?

A. 5 quarts of water are used in the system. Open

water level valve in wheel well. When water comes

out the system is full, close valve.


l. Q. How much vacuum should the automatic pilot gyros


A. Automatic pilot gyros normally use 4 - 5 inches

Hg. vacuum.

2. Q. How much vacuum should be applied to the turn


A. The turn indicator uses 2 inches Hg. Vacuum.

3. Q. How is the vacuum obtained for these instruments?

A. Vacuum for these instruments is obtained from the

vacuum pumps driven by the engines.

4. Q. On the instrument panel there is a valve with

positions labeled "PITOT" and "VFNT". Fxplain.

A. The valve marked PITOT opens the static pressure

lines of the airspeed meter, the climb indicator

and the altimeters to the atmospheric pressure

holes at the side of the pitot head. When turned

to VENT, the static lines are opened to the static

pressure in the vicinity of the left auxiliary fuel tank.

5. Q. If the artificial horizon is uncaged immediately

before take-off , what is the effect on its

accuracy? When should it be uncaged?

A. Uncaging the artificial horizon immediately before

take-off introduces an error equal to the angle

of the fore and aft axis above the horizon. The

artificial horizon should be uncaged immediately

after starting the engines and before taxiing

away from loading platform.


6. Q. Describe the procedure for putting the automatic

pilot into operation?

A. To operate automatic pilot:

(a) Set speed valves (located at lower part of

instrument panel on left side)

l. Rudder valve just cracked open.

2. Aileron valve open to number 3 setting.

3. Elevator valve just cracked.

(b) Trim plane to fly "hands off".

(c) Set automatic pilot shut-off valve for 60 psi.

It will increase to 80 psi when autopilot is


(d) Set follow-up indices to match gyro indications.

(e) Slowly turn ON automatic pilot control (on


As automatic pilot is engaged the pilot should

hold the controls to feel whether it is taking

over and functioning properly.

7. Q. If the left engine failed how would vacuum for the

gyros be obtained?

A. If either engine becomes in-operative, turn the

vacuum pump selector valve to the other engine.


l. Q. Where are the engine fire extinguisher controls?

A. Engine fire extinguisher controls are located under

the panel door in the companion-way floor between

the pilots' seats.

2. Q. If fire occurred in the right engine while starting

how should the planes fire extinguisher be

handled? If the ground system failed?

A. To extinguish a fire in the right engine, open the

door in the floor, set the selector to the right

engine, and pull the CO2 release handle hard (about

20 inches for cutter type flask and 2" for valve type flask.)

3. Q. Where is the CO2 flask for the engine fire ex-


A. Engine fire extinguisher CO2 flask is at right

rear of co-pilot's seat.

4. Q. Where are the hand fire extinguishers?

A. One hand fire extinguisher (CO2 type) is located on

the floor behind the co-pilot's seat. The other

(pyrene) is on the buffet bulkhead in the cabin.


5. Q. Where are the emergency escape hatches?

A. Emergency exits are located as follows:

(a) One at top of fuselage above pilots' seats

(b) Two cabin windows l row E l row F single

seat side. (right)

(c) One cabin window, row E, double seat side (left)

6. Q. Where are the following carried? (a) Machete (b)

Very pistol.

A. (a} Machete is carried on rear side small door

between lavatory and rear baggage compartment.

(b) Very pistol and 9 shells are carried on bulk-

head behind co-pilot's seat.

7. Q. Where is the First Aid Kit located?

A. First Aid Kit is located in the cabin on the

lavatory bulkhead.

8. Q. What emergency rations are carried and where are

they located?

A. Candy, chewing gum and vitamin tablets are carried

in the life rafts. One tin in five man raft and

four tins in each ten man raft. One tin supplies

five people for one day, or five cans Army Rations

in Jungle kit.

9. Q. Where are the life jackets carried? Jump seat life


A. Life Jackets are carried as follows:

(a) Three in right baggage compartment.

(b) Two in pocket on left cabin wall forward of

first two seats.

(c) One in pocket on right cabin wall forward

of front seat.

(d) Eighteen in seat backs.

(e) Steward's - in vicinity of first aid kit.

l0. Q. Where are life rafts carried?

A. One five man boat type raft in right forward baggage

compartment. Either two ten man boat type rafts or

one twenty man circular raft aft of last seat on

right side.


l. Q. Where are the parachute flare controls?

A. Parachute flare controls are located near top of

hydraulic panel.


2. Q. Which flare should be dropped first? Why? Are

the release controls placarded?

A. Release rear flare first. To prevent its being

fouled by cable from front flare. Flare release

controls are placarded FRONT and REAR and release

sequence is indicated.

3. Q. What speed does the operations manual specify for

dropping flares?

A. Release flares under l20 MPH.

4. Q. From what altitude should flares be dropped?

A. Best altitude for release of first flare is 4000

feet above ground - second at 2000 feet.

5. Q. Where are the flares carried?

A. Flares are located on left side behind rear cargo


6. Q. What is the duration of each flare?

A. Each flare burns 3 minutes at 200,000 candle power.


l. Q. How would you determine immediately before take-off

that the automatic pilot control is OFF?

A. As a last minute check before applying take-off

power, the rudder, elevator, and aileron controls

should be operated to ascertain that they are free

and that automatic pilot is OFF.

2. Q. What is recommended climbing speed on two engines?

A. Recommended climbing speed is l20 - l30 MPH on two


3. Q. What is the recommended climbing speed on one engine?

A. Best single engine climbing speed is l08 MPH. (Open

cowl and enrich mixture to keep cylinder heads within

operating limits.)

4. Q. What is the minimum airspeed for single engine flight?

A. Minimum single engine airspeed is 88 MPH with the

live engine developing l050 HP.

5. Q. Should the plane be flown level or with one wing high

for minimum drag in single engine flight?

A. Douglas Aircraft Manual (April 20, l94l) advises l-3

degrees wing low on side of live engi~e for zero yaw

and minimum drag.


6. Q. Where are the trim tab controls located?

A. Trim tab control locations:

ELEVATOR - wheel at left side of propeller levers

RUDDER - crank on pedestal near left side

AILERON - crank on pedestal near right side


l. Q. How are the seats numbered?

A. Investigation of seat numbering systems reveals that

several systems have been printed. It is sufficient

for load distribution purposes to consider only the

rows of seats which are lettered from front to rear:

A B C D E F G.

2. Q. For weight report purposes how are the fuel tanks


A. Fuel tank numbering:

l - LA; 2 - LM; 3 - RM; 4 - RA

3. Q. What is the most desirable C.G. position?

A. C.G. position about 23%.

4. Q. What are the PAA permissible C.G. limits?

A. Permissible PAA C.G. limits 20% to 26.5%.

5. Q. What are the permissible gross weights for take-

off and landing? On short flights how should take-

off weight be restricted?

A. 25,200 T.O. 24,400 landing by adding the weight

of the gas to be consumed to the standard gross

(landing so that at the destination the gross will

not be over 24,400 lbs.)

6. Q. Regulations prohibit shipping batteries containing

acid in the baggage compartments. How would you

send a spare battery to a DC-3 delayed enroute by

battery failure?

A. Put the battery in the right battery box which is normally


7. Q. Where is the strong box? Where is the key carried?

A. The strong box is located at the left side of the

companionway at the rear of the fuse panel.

The key is on the bulkhead above the strong box.

8. Q. Where would you look for the key for the rear

baggage door?

A. The rear baggage door key is carried on the cabin

wall near the lower front corner of the passenger

entrance door.



l. Q. Where are the oxygen outlets for Captain, Co-pilot,

Radio Operator, Passengers?

A. Captain: Under left cockpit side light.

Co-pilot: Under rloht cockpit side light

Radio Operator: Above the table at the rear side of

the bulkhead behind the Co-pilot.

Passengers: Rows A and D at the left side.

2. Q. Where is the oxygen flask? Where is the low pressure

regulator valve?

A. The oxygen flask and pressure regulator are located

behind the Captain's seat in the cockpit, or above the

emergency battery in the companionway on the left side.

3. Q. In what position should the low pressure valve be

when not in use?

A. Unscrewed, so that there is no tension on the


4. Q. (a) In what position should the high pressure valve

be when oxygen is not being used? When oxygen is

being used?

A. (a) When not being used the oxygen flask valve must be

completely closed.

(b) When oxygen is being used the valve should be

screwed all the way out so that the valve is

firmly seated against the outer seal. This

prevents leakage around the valve stem.

5. Q. Itemize the procedure for turning on the oxygen


A. Open the flask valve all the way. Turn regulator

"T" handle to right until cruising altitude is

indicated on flowmeter gauge, then plug in the

oxygen mask.

6. Q. Itemize the procedure for turning off the oxygen

equipment ?

A. Turn the flask valve full OFF. Allow pressure to

drop to zero. Turn regulator "T" handle to left

all the way, then unplug the oxygen mask.

7. Q. Where are the oxygen masks carried?

A. Five oxygen masks are carried in the airplane. One

at each flight crew's station. two masks located

in the hat rack forward left side, for the passengers.

8. Q. How does availability of oxygen affect our DC-3A


A. Planes with non-supercharged cabins are not

permitted to fly at an altitude above l0,000 feet


for more than 30 minutes continuously, or above

l2,000 feet for any length of time unless equipped

with effective oxygen apparatus and an adequate

supply of oxygen for the crew.

9. Q. (a) Is there any danger in using excess oxygen?

(b) What is the effect of insufficient oxygen?

A. (a) Physical contact with the excess oxygen is

not injurious. However, hyper-ventilation

results when an oversupply of oxygen in the

lungs displaces the carbon dioxide and inter-

feres with the acid-base equilibrium.

Manifestations of hyper-ventilation are

dizziness, tingling of extremities, and

feeling of impending suffocation. A quick

cure is to breathe several times while a

paper bag is held over the nose and mouth.

(b) Insufficient oxygen causes decrease in mental

alertness, impairs ability to carry out

complicated operations, dims the vision, clouds

the memory, and increases the fatige rate.

The reason that anoxia is so dangerous is that

the pilot does not recognize its symptoms be-

cause he becomes increasingly incapable of

realizing what is happening to him.

l0. Q. When and how should the masks be sterilized?

A. After the mask assembly has been used it should be

sterilized. Soap should not be applied to the

sponge rubber discs because it may clog the pores.

The rest of the assembly should be washed in warm

water with a mild soap and then rinsed thoroughly.

The parts are then boiled three minutes with

particular care that the rubber parts do not touch

the bottom of the container. Dry thoroughly and

re-assemble before packing. Disinfectants should

never be used.

ll. Q. Why should oil and grease be kept away from all

parts of the oxygen system?

A. Oil and grease are very explosive in the presence

of oxygen.

l2. Q. Why should full notation of oxygen use be recorded

on Engineering Report?

A. Notation of oxygen used must be made so that

servicing of the masks and flask will be done



l3. Q. To what maximum pressure are the flasks filled?

A. When oxygen pressures drop to l500 psi. the flasks

are recharged to l800 psi.

l4. Q. In what units is the flowmeter graduated?

A. Oxygen flowmeters are graduated in thousands of

feet. Keep the pressure regulator set so that the

gauge on the instrmnent panel shows the same

altitude as the altimeter.

l5. Q. What is the function and purpose of the rebreather bag?

A. The first part of the exhalation is rich in oxygen and

thus is suitable for rebreathing and it passes down

into the bag where it mixes with the incoming oxygen.

The bag then becomes extended and the slight pressure

thus formed causes the remaining portion of the

exhalation, which is high in carbon dioxide content,

to pass out through the sponge rubber discs. The

advantages of the rebreather bag are as follows:

(a) Rebreathing the oxygen rich portion of each

exhalation greatly increases the effective use

of the oxygen available.

(b) The carbon dioxide conserved by the bag

stimulates breathing.

(c) The humidity conserved by the bag prevents

dryness and soreness of the throat.

l6. Q. What does the CAR state regarding use of oxygen

and smoking?

A. Smoking is not permitted in compartments where oxy-

gen is being used, because it contaminates the air

and prevents the necessary amount of oxygen from

passing from the lungs into the blood stream.




I Primary phase (Contact)

Period I (l½ Hours)

(a) Preflight and cockpit check

(b) Starting, taxiing and takeoff

(c) Airwork:

(l) Climbing turns left and right changing direction every 90 degrees

(airspeed not less than l20 mph and rate of climb not greater than 500 ft.

per minute).

(2) Level off at 4000 ft - trim ship - level flight for two minutes.

(3) Standard rate turns left and right 360 degrees.

(4) Steep turns left and right 360 degrees (at least 4 needle widths).

(5) Approaches to stalls.

(a) Gear and flaps up, l5" mp. Hold heading and altitude - note


(b) Gear down - flaps up, l5" mp. Hold heading and altitude - note


(c) Gear down - full flap - hold heading and altitude - note airspeed.

(6) Instruction on why flap should be raised before gear in climb-outs.

(7) Descending turns left and right changing direction every 90 degrees.

Gear up and down l20 mph - 500 ft per minute - to 2000 ft. (note power


(8) Level off 2000 ft - gear down - hold l20 mph in level flight (note

power settings).

(9) Slow flight - gear down - holding altitude - 90 mph airspeed (note

power settings).

(l0) Automatic pilot operation (line operation only).

(ll) Landing gear and flap operation.

NOTE: On all succeeding flights, the student should set up the radio and

handle the radio phone contact until at least after the first takeoff.

Instructor should carefully check that concise phraseology is used during

these contacts.

Also that the student is familiar with the operation of the radio

equipment. Student to memorize feathering procedure to point of asking for

check list.

Period II (l½ Hours)

Normal takeoff - approach patterns and landing.


Period III (l½ Hours)

(l) Repeat Period II

(2) Missed approach procedure, stressing good knowledge of this procedure.

The instructor will act as pilot and student as copilot. Note students

reaction to Captains commands. Then student will act as pilot and instructor

as copilot. Note students cockpit phraseology and commands to instructor.

(3) Instructor will feather and unfeather an engine at lest three times,

giving the student instructions and commands. Note students ability to carry

out orders from Captain. Students are to repeat commands when given. This

point to be highly stressed.

NOTE: Copilots assigned to DC-3 operation to get this: At least one period of

this training shall be scheduled late enough as to give the student a minimum

of at least 3 night landings. It is felt that most of this time 4:30

(3 periods) be utilized on takeoffs and landings. Student shall be able to

make unassisted landing.

II Secondary Phase (Instruments)

The following maneuvers will be stressed and given on Instrument Rating.

Climbs and Climbing Turns - Climbs and climbing turns will be made at a

predeterm-ined rate of climb to be within the performance capabilities of the

airplane used. Student will be rated on the basis of his use of the proper

amount of power, ability to hold a uniform air speed, his ability to hold his

heading straight climbs and to hold a constant rate of turn in either


Steep Turns* - l80o and 360o steep turns will be required on the rate

instruments with the steepest bank appropriate to the airplane used.

Smoothness of the controls, the ability to hold the air speed and altitude

within reasonable limits will be the basis for judging performance.

Timed Turns* - Student will be required to make turns of 90o, l80o, and 360o

duration in each direction; and turns to desired headings; using the rate

instruments only.

Standard rate turns of 360o duration should be executed with an error of less

than l0o in good air. Performance will be judged on the basis of accuracy of

heading, ability to hold altitude and air speed, coordination and timing.

Maneuvering at Minimum Speed (Slow Flight) - Demonstration of minimum flight

speed in straight and level flight and turns, and of approach speed on

headings and turns to headings. The transition to and from slow flight should

be smooth, prompt and without change of altitude or heading.


Stalls - Stalls will be demonstrated from straight flight and from turns, with

and without power. Approaches to stalls, recovery from approaches to stalls

will be instituted at the first physical indication of a stall, such as

buffeting. Full stalls will not be executed in multi-engine airplanes.

Propeller Feathering - Propeller feathering will be demonstrated on all flight

tests in airplane equipped with propellers which can be feathered and

unfeathered in flight without damage to the engine. No flight instructor will

require a student to feather an engine of a twin-engine aircraft on takeoff or

other critical position where failure of the other engine would endanger

safety. At altitude the student will be expected to feather an engine holding

his heading and altitude during the feathering procedure and memorize

feathering procedure to the point where he asks for the feathering check list.

Maneuvering With One or More Engines Out - Students will be required to

demonstrate emergency procedures in operation of multi-engine airplanes with

one or more engines throttled or cut off, depending on conditions.

Engines should be throttled to approximately l5 in. manifold pressure to

simulate loss of an engine in conditions where the failure of another engine

would endanger safety. The student will be required to maintain heading and

altitude (if possible), and to make moderate turns both toward and away from

the dead engine. Performance will be judged on the basis of his ability to

maintain engine out air speed heading and altitude, to trim the airplane and

make current power settings and to apply the appropriate check list.

Recovery from Unusual Attitudes* - The flight instructor will place the

airplane in attitudes unusual to normal flight from which the student will be

required to recover to straight and level flight on the rate instruments

alone. Such attitudes may include near stalls, diving spirals, abnormal skids

and slips, and steep climbing turns or glides. Performance will be judged on

the basis of the student's ability to return to normal flight smoothly,

without exceeding safe air speed limits, and without placing undue stress on

the airplane.

Ability to Tune Radio - The student will demonstrate his knowledge of where to

find the frequency for all radio aids which may be utilized with the equipment

installed in his airplane, and must be able o tune in any available radio

signals. He must recognize a properly-tuned signal from a distorted one, and

know the uses of automatic and manual volume controls, the CW selector, and

the voice and range filter. Performance will be judged on the basis of proper

frequency tuning, correct filter selection and proper use of volume control.

(* These items are to be practised on rate instruments only).


Orientation - Orientation may be demonstrated by any accepted method

practicable for the range being used under the conditions experienced. The

use of a particular system of orientation which will take the shortest time

under known conditions will be graded higher, but the use of any other

reliable system will be acceptable. Performance will be judged on the basis of

the selection of the best orientation method, the identification of range

signals, proper maneuvering of the airplane, ability to hold altitude and

headings, cone identification, and coordination.

Beam Bracketing - The student will be required to fly along a given range leg

after intersecting it. He must be able to align himself with the leg with a

reasonable number of bracketing corrections, and should be able to promptly

estimate drift and average heading required. Performance will be judged on

the basis of planning, coordination and the ability to hold constant heading

and altitude.

Cone identification - After orientation and beam bracketing, the student will

fly directly through the cone and verify the cone by generally accepted

methods. Time of passing the cone should be noted.

Approach Procedures - The student will be required to execute a standard

instrument approach procedure for the airport being used. He will be allowed

to use only such radio equipment as is allotted him by the flight instructor.

(Instrument students should be capable of instrument approaches without the

marker beacons unless the specified procedure require their use.) Performance

will be based on the student's ability to obtain and follow traffic clearance,

his timing, his ability to maintain specified altitude and air speed, and

adherence to minimum altitudes. Any error in altitude or direction toward the

more dangerous side will be disqualifying.

Missed Approach Procedure - Student must demonstrate the specified missed

approach procedure for the airport being used.

Judgment - Judgment is the most difficult item to analyze and the most

important factor of the flight test. The pilot's judgment adds to or detracts

from his ability and contributes more than any other factor in accidents. he

flight instructor must be alert to determine that each situation is analyzed

and the proper action taken by the student. He should utilize to the fullest

extent the maneuvers which require a display of judgment on the part of the


Judgment should not be interpreted as the ability to make correct estimates;

as for example; in accuracy landings. This is actually technique. Judgment

is discretion - the power of arriving at a wise decision - or aeronautically,

the discernment between safe and unsafe flying.


Smoothness and Coordination - Smoothness in handling the aircraft should not

be confused with sufficient motion of the controls to cause the airplane to

perform in the desired manner. Abrupt, jerky, or violent action of the

controls is seldom necessary, but prompt, firm actions often distinguish the

pilot who is doing the flying from one who is "being flown". Smoothness is a

term more correctly applied to the action of the airplane than to the movement

of the controls.

Coordination involves all actions. The usual criterion is the relative

movement of the hands and feet, or between the aileron or rudder controls.

Other features are the coordination of elevators, power and the constant

control of heading when the pilot's attention is directed elsewhere.

Performance is judged on the basis of the student's ability to fly the

airplane firmly without rough or abrupt movements, to keep the ball centered,

and to use all controls as is necessary for flight.

Instrument rating flight test if required. If not required the student may be

reassigned to Link trainer for completion of ADF course.

Note: This DF Course is not required for instrument rating; but is required

to complete System Instrument Flight Training Course.

(l) Orientation with time and distance off, manual loop. Bearings on ADF


(2) QDM Bracketing to and away from station, an overheads, using the ADF.

(3) QDM letdowns

(4) ADF Holding Patterns:

a. Race Track

b. Circling

c. Other methods

Note: On ADF approaches and let downs, single engine work should be stressed

until satisfactory. Flight Instructors are encouraged to let the student get

as much experience handling the aircraft on landing and takeoff as possible.






A. Pre-Flight:

l. Run Check List - explain or question items as required.

2. Use of Check List as outlined in Operating Manual.

3. Starting Procedure (see Operating Manual).

B. Taxiing:

Use of brakes, tail wheel lock; power and control coordination; parking,

as outlined in Operating Manual. (Stress no pivoting on one wheel or

riding brakes.)

C. Airwork:

l. Climb to safe altitude. Normal turns and 30o banks; picking up QDMs

toward and away from station. Check for continued climb.

2. Maximum performance climb, takeoff and rated power, l and 2 engines.

3. Use of Power Chart.

4. Set cruise power and trim ship; check for proper instructions to

Copilot. Auto pilot operation - level; climb; descent; turns


5. Normal turns; steep turns (l and 2 engines); timed turns.

6. Slow flight below minimum maneuvering speed, 90 mph clean, standard

rate turns; note power settings.

7. Approach to stalls:

a. Clean, 2 engines; check recovery with minimum loss of altitude.

b. Landing configuration l5 in. mp, full flap, gear down.


8. Power settings:

a. Clean, l20 mph, cruise rpm, one and two engines, level.

b. Gear down, level l20 mph.

c. Gear up, cruise rpm, l20 mph, descend 500 ft per minute - one and

two engines.

d. Gear down, cruise rpm, l20 mph, descend 500 ft per minute.

e. l and 2 engine cruise control.

f. Fuel system control.

9. a. Demonstration of minimum control speed, Vmc, one-engine


b. Demonstration of minimum maneuvering speed, two-engine

operation, clean, note speeds (level and turning).

l0. Enroute climb speeds and ceilings - l and 2 engines.

ll. Simulated at altitude:

a. Missed approach, l and 2 engines.

b. Execute landing pattern and missed approach, followed with a 30o

bank, maximum performance climb-out, and change heading l80o.

l2. a. Feathering and unfeathering.

b. Simulate loss of engine on takeoff at altitude, gear down, cut

mixture when takeoff power is reached at ll5 MPH.

c. Instruction on why flap should be raised before gear in climbouts.

l3. Takeoffs (as outlined in Operating Manual)

a. Normal.

b. Crosswind.

c. Short field maximum performance.

d. Simulated gross weight takeoff.

e. Unbalanced power (See "Emergencies").

f. Hood takeoff.

l4. Approaches, Contact:

a. Normal

b. Crosswind

c. Various flap settings

d. 0o flap

e. Unbalanced power (See "Emergencies").

f. High, close-in

g. Missed approach - refused landing


l5. Landings (as outlined in Operating Manual):

a. Normal

b. Crosswind

c. Various flap settings

d. 0o flap

e. Unbalanced power (See "Emergencies").

f. Short field

g. One landing, airspeeds covered on pilot's side. Simulate

airspeed out.

l6. Emergencies:

a. Takeoffs:

(l) Cut engine before, at, and after Vmc speed.

(2) Simulate loss of fuel pressure on takeoff.

(3) Simulate engine fire on takeoff.

(4) One takeoff when gear will not come up, due hydraulic failure.

(5) One takeoff with runaway propeller (verbal instruction


(6) Takeoff stressing best attitude and speed for maximum perform-

ance (no slipping or skidding).

b. Approaches:

(l) Simulate smoke evacuation - cockpit windows open.

(2) Hydraulic system failure.

(3) Unbalanced power, one engine windmilling, plus hydraulic

system out.

(4) Simulate poor line-up due to poor visibility. Make

correction and land; emphasize when outside limits;

execute missed approach.

(5) Missed approaches - refused landing.

c. Landings (as outlined in Operating Manual).

(l) One engine windmilling, normal hydraulic system.

(2) One engine windmilling, simulate hydraulic failure, 0o flap.

Discuss emergency brake procedure - hand pump.

(3) One engine windmilling crosswind, hydraulic system normal.

(4) Verbally discuss landing with one or more gear retracted.


d. Hydraulics:

Feather engine, kill system pressure and demonstrate following:

(l) Loss of hydraulic system pressure. Instruct in all possible

methods of returning hydraulic system to operation after

failure to be done in flight.

(2) Emergency gear extension - free fall and manual.

(3) Emergency flap extension.

(4) Emergency brake procedure.

(5) Emergency cowl flap operation.

l7. Aircraft Limitations

a. Rough air

b. Maximum level flight speed

c. Maximum dive speeds

d. Gear speeds

e. Flap speeds

f. Maximum speed for unfeathering

g. Maximum speed with propeller feathered


II. INSTRUMENT: (All contact airwork and simulated pull-outs done under

hood. Unusual positions should be introduced, using

emergency instrument group only. Instruct on use of

radio, engine instruments, and flight group.)

A. Orientation:

l. Pointer progression - aural null.

2. Distance off, ADF and manual loop.

3. Range orientation (for Check Pilots and ATR only):

a. Fade 90 )

b. Fade perpendicular) Check

c. On course ) anyone

d. Close-in )

4. Instruction on race track pattern flying.

B. Between orientation and first "over", (l) Advise Control of position,

altitude, and ETA; (2) Run landing check; and (3) Slow to letdown


C. Letdowns - Range and ADF

l. Initial "over", as specified in Route Manual, landing instructions,

and altimeter.

2. Fly at l20 MPH with flap and gear up.

3. Procedure turn, as specified.

4. Final approach, l20 mph.

5. Gear should be lowered at low over, or when contact straight in.

Lower gear in pattern if circling approach.

6. Minimum of one letdown working Miami Approach Control.

7. 400 and l, low down, close-in approach and landing.


A. Aircraft Operating Manual.

B. Aircraft Performance.

C. Aircraft limitations.

D. Knowledge of aircraft and engines.

E. Radio set-up and its use - Normal - Emergency, water landing.

F. Electrical system.

G. Emergency electrical system.

H. Electrical warning system.

I. Lighting system - location of switches, spare bulbs, fuses.

J. Auto pilot system - control.

K. Hydraulic system and sub-systems.

L. Emergency pump operation.


M. Type of engines and power setting and how long it can be used.

N. Rated power settings and how long it can be used.

O. Temperatures and pressures.

P. Propeller system control - Normal - Emergency.

Q. Cooling system and control, engines.

R. Fuel system and control - Normal - Emergency,

S. Oil system - capacity - limits.

T. Fluid cut-off system - control.

U. Oxygen system - control - when used.

V. CO2 system.

W. Fire control.

l. Engine fire during starting

2. Engine fire - Zones l, 2, & 3.

3. Cockpit fire.

4. Cabin fire.

5. Cargo fire.

6. Electrical fire.

X De-icing, carburetor, pitot.

Y. Instrumentation and power supply - engine, flight, normal, emergency.

Z. Location of flares and switches.

AA. Emergency equipment location.

BB. Emergency exits

CC. Location of Operations Specifications.

DD. Gross weights; C.G. limits.

EE. Ventilation and Heating.





The student will fly from the right seat during this training, which

will consist of three periods of instruction·


a. Pre-flight checks and cockpit explanation.

b. Starting, taxiing and takeoff.

c. Airwork:

l. Climbing turns left and right changing direction

every 90 degrees (airspeed not less than l20 m.p.h.

and rate of climb not greater than 500 feet per


2. Level off at 4000 ft - trim ship - level flight for

two minutes.

3. Standard rate turns left and right 360 degrees.

4· Steep turns left and right 360 degrees. (at least

4 needle widths)

5· Approach stalls - l5" - gear up - holding altitude –

note airspeed.

Approach stalls - no power - gear up – holding

altitude - note airspeed.

Approach stalls - l5" - gear down - holding altitude –

note airspeed.

Approach stalls - no power – gear down - holding alti-

tude - note airspeed.

Approach stalls – l5" – gear down - ½ flap – holding

altitude - note airspeed.

6. Instruction on why flap should be raised before gear

in climb-outs.

7. Descending turns left and right changing direction

every 90 degrees. Gear – l20 m.p.h. - 500 feet per

minute - to 3000'. Gear down - l20 m.p.h. - 500 feet

per minute - to 2000'. (note power settings)

8 Level off 2000' - gear down - holding l20 m.p.h in level

flight. (note power setting)

9. Slow flight. Gear down – full flap - holding altitude-

80 m.p.h. airspeed (note power setting)

l0. Automatic pilot operation.

ll. Landing gear and flap operation.


NOTE: On all succeeding flights, the student should set up the radio

And handle the radio phone contacts until at least after the first

Take-off. Instructor should carefully check that concise phraseology

Is used during these contacts. Also that the student is familiar

With the operation of the radio equipment.



a. Standard take-offs - approach patterns and landings.

Wheel landings to be made with tail on low side.

b. Missed approach procedure stressing good knowledge of this

procedure. The instructor will act as pilot and student

as co-pilot. Note students reaction to Captain's orders.

Then student will act as pilot and instructor as co-pilot.

Note students cockpit phraseology and commands to


c. Instructor will feather and unfeather an engine at least

three times, giving the student instructions and commands.

Note students ability to carry out orders from Captain.

Students are to repeat commands when given. This point

to be highly stressed.

NOTE: At least one period of this training shall be scheduled late

enough as to give the student a minimum of at least three

(3) night landings. It is felt that most of this time, 4

hours 30 minutes, (3 periods) be utilized on takeoffs and

landings. Student shall be able to make unassisted landings.

Quiz on the following from time to time:

l. Radio set up and its use.

2. Electrical system.

3. Hydraulic system and sub systems.

4. Crossfeed

5. Type of engines and power settings and how long it can be


6. Rated power and settings and how long it can be used.

7. Temperature and pressures.

8. Emergency equipment.

9. Emergency exits.

l0. Location of operation specifications.

ll. Gross weights.

l2. Fuel dumping.

l3. Fuel and oil capacities - ratio.





A. Oral examination on DC-3 Question Set.

B. Preflight Check )

) Read all items and check same.

C. Cockpit Check before starting)

D. Starting Procedure

E. Pre-taxi Check - tower clearance


A. After starting engines and receiving taxi instructions, release

brakes and apply 800-l000 RPM. As soon as ship starts to roll check

brakes, right and left, smoothly. Check brake pressure. Unlock

tailwheel. Turn aircraft with smooth application of power on

appropriate engine and assist with brake if needed. Care must be

exercised to avoid locking wheel on inside of turn. To slow down and

stop reduce power and apply brakes evenly and smoothly. Tail wheel

should be locked when practicable.

B. Accomplish taxiing check list.

C. In strong wind copilot should be instructed to assist captain to hold

controls. Hold aircraft straight with power on upwind engine, using

appropriate brake lightly and intermittently, copilot assisting with

controls held as instructed.

D. Slow down on turns to avoid excess strain on gear,


A. Complete Pre-Takeoff Check list.

B. Align aircraft carefully before locking tail wheel, use all of runway.

C. Apply full takeoff power without hesitation. If short field takeoff,

hold brake until 30-35 in. Hg is applied. (All takeoffs should

simulate short field work).


D. Order copilot to observe fuel, oil pressures and temperatures.

E. Let tail come up to flight attitude.

F. Off runway between 80 to 90 mph.

G. Apply brake smoothly and call for gear UP at l08 mph reduce power to

2450 RPM - 35 inches.

H. Build up speed to l20 mph.

I. Establish constant climb and avoid great changes in attitude of


J. Check head temperatures while gear is retracting.

K. At 300 ft day or 500 ft night accelerate to l30 mph, reduce to climb

power, gear handle neutral.

L. At 500 ft start l80o standard rate climbing turn to lOO0 feet.

M. Reduce power to 25" mp and cruise rpm at l000 feet.

N. Call for Prelanding Check.

O. At downwind end of runway, put gear DOWN, complete Landing Check,

start descent.

P. l5 seconds past downwind end of runway start standard rate descending

turn into active runway, leveling off at minimum 350 ft. altitude (min.

airspeed ll0 mph).

Q. Flaps as required.

R. Reduce to desired airspeed. Pilot should handle power during approach

and landing.

S. Maintain normal descent and cross fence at 85 - 90 mph.

T. Start, slow constant back pressure for flare out.

U. Hold off in tail low attitude and let go on smoothly.

V. Flap up as required.

W. Ease tail down slowly.

X. Use brakes early to check pressure.



A. Normal approach pattern.

B. ll0 IAS turning final.

C. l05 - ll0 MPH final.

D. 90 - 95 MPH over fence.

E. Land as near to approach end of runway as possible.


A. Consult DC-3 Aircraft Operating Manual, Wind Component Diagram for

Cross-wind (page 65-l-2).

B. Apply full upwind aileron, or as needed, decreasing amount with

increase in airspeed.

C. Maintain directional control with throttles, rudder and aileron, and

the downwind throttle to takeoff as soon as rudder directional control


D. Leave tail wheel on longer than normal.

E. Let speed build up high enough so that when aircraft leaves ground, a

clean break may be made with no danger of contacting ground again.

F. On leaving ground, crab into wind and hold straight down runway.

a. Maximum Performance Climb after Takeoff

l. Check clock when takeoff power applied so as not to exceed

engine operating time limitations.

2. Gear UP when definitely clear of runway.

3. Maintain climb speed l05 MPH until clear of obstructions.

Check temperatures and pressures and resume normal club as soon

as condition calling for maximum performance no longer exists.

Assume normal climb configuration as soon as possible.

4. Repeat same under hood. - Hood Takeoff.


b. Engine Fire on Takeoff

l. Engine feathering procedures, cowls trail, pull fluid shutoff.

2. Discharge fire extinguisher on appropriate engine.

3. Advise tower of emergency, return and land.

c. Loss of Fuel Pressure on Takeoff

l. Wobble pump for pressure.

2. If engine continues to run, continue its operation on crossfeed

at pilot's discretion only. Check for fire. Accomplish Check



(Gear DOWN – Full flaps - ll0 mph or less.)

A. Apply 33" mp, props full low pitch, full takeoff power.

B. Change attitude to avoid all obstacles.

C. At 90 mph flap UP.

D. As soon as climb established command "GEAR UP", accelerate to minimum

takeoff climb speed l05 mph. Use maximum performance climb to clear



A. Mixture Takeoff and climb, cowls trail.

B. Check flap and gear UP.

C. Rated power and maintain l22 mph until desired altitude is reached.

D. At desired altitude, reduce to cruise power.



l. Mixture Takeoff and climb; gear handle NEUTRAL.

2. Cruisc power.


3. 450 bank.

4. Cross reference all flight instruments holding constant degree of

bank and altitude.


A. Directional control by turn and bank indicator.

B. Cross check altimeter, rate of climb, and airspeed.



l. Mixture takeoff and climb.

2. Cowls trail.

3. Gear handle neutral.

4. Reduce power to l5 inches.

5. Hold altitude until the approach to stall.

6. Nose down slightly on horizon on flight indicator.

7. Apply rated power.

8. Stop descent at 95 mph and accelerate to l22 mph, then climb to

original or desired altitude. When desired altitude is reached,

reduce power to cruise.


l. Mixture takeoff and climb.

2. Cowls trail.

3. Reduce Power to l5" mp.

4. Gear and flap down.

5. Hold altitude until approach to stall.

6. Nose down slightly below horizon on flight indicator.


7. Apply full takeoff power.

8. Start recovery at 90 mph, crosscheck all instruments to indicate

stall is broken.

9. Call "Flap UP", then gear up.

l0. Reduce to ratted power, climb to desired altitude at l22 mph.

ll. Reduce to cruise power at l40 mph.


A. Hold heading, altitude.

B. Mixtures takeoff and climb, cowls trail.

C. Cruise RPM, power as required.

D. As 90 mph reached, increase power to maintain airspeed and altitude.

E. 200 bank, i800 turns right and left.


A. Firm coordinated aileron and rudder pressure to stop any turning


B. If needle and ball displaced to opposite sides with relatively low

air-speed (spin indication) center needle first, disregard ball until turn

stopped then center normally.

C. Throttle back immediately, if airspeed building up, avoiding high G

pull-outs and excessive loads from partial or wholly inverted attitudes.

D. Do not use elevators to check excessive speed until turn has been

stopped. (Tight diving spiral.) Use of elevators in turn increases rate

of turn, making recovery more difficult.

E. Do not jerk back on yoke. (Stalls, snap rolls may be result even at

high indicated airspeed.)


F. Moderate use of elevators sufficient. (Modern aircraft have tendency

to go from dive at high airspeed to dangerous nose high attitude.)

G. Forward on yoke to keep attitude constant the instant airspeed starts

to decrease.

H. Hold this attitude with forward pressure, checking climb tendency

until momentum lost and normal cruise airspeed reached.

I. Open throttles.

J. If in attitude of stall, rapidly losing airspeed, forward on yoke

before applying power.


A. Descent between stations

l. Mixture takeoff and climb

2. Check cowls, probably closed.

3. Manifold pressure l8" to 20".

4. Establish l000 ft per minute, rate of descent.

5. Do not exceed aircraft speed limitation.

B. Emergency descent from holding (Would have l20 mph, mixture takeoff

and climb.)

l. Mixture takeoff and climb

2. Check cowls, probably closed.

3. Manifold pressure l8" - 20".

4. Establish l000 ft per minute rate of descent.

5. Do not exceed aircraft speed limitation.

6. Check head temperatures.

To stop at desired altitude, start to level off l00 ft. high and allow

speed to decrease to l20, then apply power to maintain l20 mph airspeed

at proper altitude.



 It is permissible to let Instructor,

Copilot, or Check Pilot fly the airplane during orientation. Radio

communication between aircraft and ground station while making orientation and


Miami Radio, this is Clipper ll8 - Over.

Clipper ll8, this is Miami Radio – Over.

Cliiper ll8 in unknown "A" or "N" quadrant in vicinity of Miami at

3000 ft.

Request clearance for orientation - Over.

ATC clears Clipper ll8 to all quadrants of Miami Range at Specified

altitude - Report position and ETA after orientation - Over.

Clipper ll8 repeats clearance.

A. Hold heading, altitude, at cruise H.P. (True A.S. about l60) Set


B. Tune radio to station in antenna position, checking maximum needle

deflection. (See Note Below.)

C. Function switch to loop CW position, volume at comfortable level.

D. Rotate loop to obtain null (increase in volume indicates loop is

turning away from null).

E. When null obtained, increase volume to narrow null to 3o and note

angular distance between null and closest wing tip. If null cannot be

narrowed this amount, due to distance from station, narrow as much as

possible and center of null will be accurate bearing.

F. Rotate needle to closest wing tip to null.

G. Leave volume alone, turn aircraft to bring null to closest wing tip.

Do not make turn too rapid.

H. Do not stop turn at first indication of null. Turn through null to

get build in volume, checking null width on gyro.

I. Turn back to center of null as indicated on gyro.

J. Start clock and carefully hold this heading.

K. Rotate loop to follow null, decrease station L; increase station R.


L. Fly for one minute. If l0o change in bearing not obtained in that

time, fly for one more minute.

M. Compute ETA, distance, QDM, change switch to compass position.

N. Clipper ll8 SW quadrant, 3000 ft on QDM 20o, ETA 07. Request

clearance to Miami Range Station.

O. Clipper ll8, your clearance - ATC clears Clipper ll8 to Miami Range

Station on QDM 20o - Contact Miami Radio overhead range station for

further clearance.

P. Clipper ll8 will repeat clearance.

Q. Turn to intercept new QDM and track to station.

R. Keep volume up to hear instructions and prevent following dead


S. Aircraft will follow instructions.

NOTE: Automatic operation of radio compass depends on combination of

signals from both loop antenna and sense or phasing antenna. Because

of ice, accident, or malfunction, phasing antenna may be lost or

inoperative. Under these conditions, Pilot must rely entirely on

aural null indication.

Failure of phasing antenna is indicated by satisfactory reception in

loop position, but no reception on antenna or compass. To tune

station in this case, it is necessary to rotate loop to estimated

maximum signal position in relation to desired radio station. This

avoids tuning station with loop in null position and lack of signal.

Turn up volume to decrease null. Due to distance from station, it may

be impossible to narrow null more than l5o - 20o. In such cases,

splitting null will give accurate bearing.

Using CW switch will eliminate mistaking identification signal

pause, or program pauses on commercial stations for null. CW switch

will not work on loop type ranges because of absence of continuous

carrier wave.

If difficulty experienced getting accurate null because of poor

reception, watch tuning meter.

Tuning meter will deflect counter clockwise when null is reached.


Formula .

Time to station 60 x minutes run .

degrees change

Distance equals TAS x minutes run .

degrees change

Drift Calculation .

Fly gyro heading toward station and no changing radio compass

bearing after reasonable length of time.

Divide total time to station by time flown and multiply by

degrees Drift. Answer is drift correction to be applied as

indicated by needle.


A. Ask for latest weather and altimeter setting.

B. When fairly close in, do pre-landing check.

C. At initial overhead, call Approach Control and report over.

D. Start turn to intercept final approach leg.

E. Reduce power to maintain l20 mph airspeed.

F. Proceed according to instructions.

G. Go out 6 miles (according to wind).

H. Do a procedure turn to south.

I. Call for active runway if you don't already have it.

J. Let down to 600 ft and maintain until over low cone.

K. Cut power to l5 - 20 in. and let down to minimum altitude.

l. If contact, make a normal approach.

2. If not contact, execute Missed Approach Procedure:

a. Apply rated power.

b. Flap up, and gear up.


c. Climb out at l30 mph on East leg to l400 feet.

d. Call tower and report a missed approach and request



A. Absolute ceiling DC-3, one engine inoperative, l3,500 ft., 24,000 lbs.

B. DC-3 will not hold altitude on one engine with gear and flap extended,


C. Minimum control speed (Vmc) 88 mph, takeoff power, sealevel.

D. Do not lower gear until landing assured.

E. Do not put flap down all at once.

F. Carefully observe altitude and airspeed turning on final.

G. Airspeed ll0 mph on final using flaps to control descent as required.

H. Center all trim tabs before landing.

I. Cross fence as near normal as possible.

XII. LOW DOWN, CLOSE-IN - 4OO & l condition - Hood over pilot's windshield.


A. Know loop operation, plus radio set up.

B. Range letdown.

C. CAA radio procedure, clearances, length of runways, destination,

alternate, radio coordination, approach control, without VHF, etc.

D. Weather minimums.

E. Hold gear until contact unless landing straight in.

F. Stress airspeed, altitudes; know power settings.

G. Increase of airspeed and altitude when on alternate source.

H. Rough air cruising speed, etc.

I. Know Vmc.


J. Know fire procedures.

K. Know hydraulic failure procedure.

L. Know gross weight and c.g.

M. Know stalling speeds and performance.

N. Know fuel system including crossfeed, etc.

O. Know power, temperature and pressure limitations.

P. Know electrical system.

Q. Know emergency equipment location & use (including exit locations).

R. Know location operations specification, power chart etc.

S. Know fuel & oil capacities and consumptions.

T. Know fuel dumping procedure.

U. Know auto pilot operation.