Notes on Warner-powered Fairchild 24s
Posted: Wed May 09, 2001 2:24 pm
'The instruction manual published by Fairchild Aircraft for the Warner-powered
Fairchild 24 (delivered with every airplane as it is sold) lists one method
of shutting down the Warner engine after flight. The Warner engine overhaul
manual published by Warner Aircraft Corporation lists another. I don't know
which method is right or which is better.
The Fairchild manual reads as follows:
After completion of the landing and taxiing to the hangar, the engine
should be stopped by pulling out the mixture control putting it in the FULL
LEAN position, and in the case of the Warner engine, the spark retarded.
Allow the engine to run until it stalls. The ignition switch should then
be turned "OFF" and the fuel selector valves switched to "OFF."
Section V-10 of the Warner manual, under the heading "Stopping Engine," reads
as follows:
a. The correct method of stopping the engine will reduce time in
stopping, reduce backfire, and also prevent overheating of the
tightly baffled engine.
b. Set the mixture control at full rich.
c. Set the throttle for normal idling of 400 to 600 RPMs and let the
engine run with the nose cowls fully opened until the engine has
cooled appreciably below the cruising temperature.
d. After obtaining the proper temperature, the RPM should be increased
to 1,000 to 1,100 RPM for 1/2 (one-half) minute in order to permit
scavenging of the crankcase oil.
e. Cut the ignition switch. As the propeller slows down and with the
ignition switch off, slowly move the throttle to the full open
position.
f. Allow the throttle to remain in its open position after stopping the
engine, as this lessens the likelihood of accidental starting while the
engine is hot.
Anybody ouh there have any guesses as to which is the correct procedure?
Earl Swaney
N28645'
Fairchild 24 (delivered with every airplane as it is sold) lists one method
of shutting down the Warner engine after flight. The Warner engine overhaul
manual published by Warner Aircraft Corporation lists another. I don't know
which method is right or which is better.
The Fairchild manual reads as follows:
After completion of the landing and taxiing to the hangar, the engine
should be stopped by pulling out the mixture control putting it in the FULL
LEAN position, and in the case of the Warner engine, the spark retarded.
Allow the engine to run until it stalls. The ignition switch should then
be turned "OFF" and the fuel selector valves switched to "OFF."
Section V-10 of the Warner manual, under the heading "Stopping Engine," reads
as follows:
a. The correct method of stopping the engine will reduce time in
stopping, reduce backfire, and also prevent overheating of the
tightly baffled engine.
b. Set the mixture control at full rich.
c. Set the throttle for normal idling of 400 to 600 RPMs and let the
engine run with the nose cowls fully opened until the engine has
cooled appreciably below the cruising temperature.
d. After obtaining the proper temperature, the RPM should be increased
to 1,000 to 1,100 RPM for 1/2 (one-half) minute in order to permit
scavenging of the crankcase oil.
e. Cut the ignition switch. As the propeller slows down and with the
ignition switch off, slowly move the throttle to the full open
position.
f. Allow the throttle to remain in its open position after stopping the
engine, as this lessens the likelihood of accidental starting while the
engine is hot.
Anybody ouh there have any guesses as to which is the correct procedure?
Earl Swaney
N28645'