Specifications

DCS
[P-51D Mustang]
128
NORMAL PROCEDURES
o Check surface controls for free movement.
 Instruments and switches:
o Altimeter set.
o Directional gyro set.
o Flight indicator set.
o All instrument readings in desired ranges.
o All switches and controls at desired positions.
 Fuel system:
o Check fuel tank selector handle on MAIN TANK L.H. Be sure selector is in detent.
o Fuel booster pump switch set to ON.
o Primer switch set to OFF.
 Flaps:
o Flaps set for takeoff (UP for normal takeoff, 15- 20° down for minimum run takeoff).
 Trim:
o Rudder trim: 5° right.
o Aileron trim: 0°.
o Elevator trim: 2° nose heavy for full fuel and no drop tanks; 4° nose heavy for full fuel
with drop tanks.
 Pre-flight engine check:
o Check propeller at full INCREASE.
o Power check - advance throttle to obtain 2300 RPM. At this RPM, the manifold
pressure should read 1/2 in.Hg less than field barometric pressure within +/- 1/2
in.Hg.
Manifold pressure in excess of field barometric pressure indicates that the engine is not
producing maximum power and should be checked.
 Ignition system check
o At 2300 RPM, with the propeller in full INCREASE, move ignition switches from BOTH
to L, back to BOTH, then to R, and back to BOTH. Allow engine speed to stabilize at
BOTH between checks. A maximum drop of 100 RPM is allowable for the right
magneto and 130 RPM drop for the left magneto. If RPM drop is more than allowable,
spark plugs will have to be deleaded.
 Idle speed check - idle engine at 650 to 700 RPM with throttle against idle stop.