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Section 3046   APPROACH AND LANDING

C. 2 MILES OUT (CONT'D.)

2. The orders for this operation, given verbally, shall be:

Captain: "GEAR DOWN" (Do not use hand signals)

First Officer: 

Lower the gear. Return the landing gear lever to neutral when landing gear strut pressure is 500 pounds.

Lock mechanical latch lever to the floor. Observe the warning light. Look out at right wheel. Report, "GEAR DOWN, LOCKED, PRESSURE UP, GREEN LIGHT ON, I HAVE A WHEEL." If anything is wrong, the First Officer will immediately inform the Captain.

Captain should in turn visually check the landing gear handle and latch lever positions, warning lights, system pressure gauge, and see that the left wheel is extended verifying "I HAVE A WHEEL."

D. MANEUVERING AROUND AIRPORT DURING APPROACH

1. Maintain an airspeed not less than 120 MPH, more if necessitated by heavy icing conditions. The DC-3 airplane stalls at approximately 65 MPH in standard air with wings level and flight direction straight ahead. However, a bank in which additional pressure is put on the wings due to centrifugal force, or a coating of ice and/or frost on the wings, can increase the stalling speed to well over 100 MPH.

2. Careful though must be given at all time to maintaining the airspeed well above the stalling speed. Whenever the airplane is being landed under conditions of reduced visibility during day flying and at all times at night, the First Officer shall call out the airspeed to the Captain every few seconds during the final approach to land.

3. Recheck landing gear control, latch lever, hydraulic pressures, warning light and wheels for down. Recheck position of mixture controls and turn deicer boots "off".

E. USE OF FLAPS

1. Put the flaps down when about a mile out at 400 to 500 feet altitude with not above 112 MPH indicated airspeed.

2. Airspeed must be reduced to 112 MPH before the flaps are lowered because the relief valve in the flap system will prevent lowering of flaps at greater speed. Considerable assistance in reducing airspeed will be obtained by lowering the landing gear first as indicated above. This will increase drag of the airplane greatly and will lend additional assistance toward steepening the gliding angle.

2/1/47   
DC-3 FLIGHT OPERATION