MOONEY SECTION VII
MODEL M20J AIRPLANE AND SYSTEMS DESCRIPTION
TAXIING AND GROUND HANDLING
The aircraft can be easily taxied with minimum use of brakes. Minimum turn-
ing radius is
41
feet without use of brakes. A manual tow bar can be used to
ground handle the aircraft. Care must be used to not swivel the nose wheel
beyond
14
degrees from center. Adjustable steering stops are incorporated
on nose gear leg assembly.
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CAUTION
"
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Exceeding the swivel angle limits may cause structural
damage.
LANDING
GEAR
CONSTRUCTION
The landing gear legs are constructed of chrome- molybdenum tubular steel,
heat-treated for greater strength and wear resistance. Main gear attaching
points have metal backings imbedded in the gear mounting box attached to
the wing spar. The nose gear mounts on the cabin tubular steel frame. Rub-
ber discs in all gear leg
assemblies absorb the shock of taxiing and landing.
RETRACTION SYSTEM
The landing gear is electrically retracted and extended.
The gear switch
operates a landing gear actuator relay. Pulling the wheel-shaped knob out
and moving it to the upper detent raises the gear. However, an Airspeed
Safety Switch, mounted on back of the airspeed indicator, is incorporated in
the electrical system to prevent landing gear retraction while on the ground
and until a safe takeoff speed is reached,
(approximately
65
+7,-4
KIA§).
The up limit switch will stop the gear in its retracted position. Moving the con-
trol knob to its lower detent lowers the gear. The properly rigged down limit
switch will stop the gear actuating motor when proper force has been exerted
to hold the landing gear in the down-and-locked position.
Bungee springs
preload the retraction mechanism in an overcenter position to hold the gear
down. A landing gear safety bypass switch override is provided next to the
gear switch should the gear fail to retract. Depressing and holding this
switch manually bypasses the airspeed safety switch and allows the gear to
retract.
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CAUTION
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Never rely on the safety switch to keep the gear down during
taxi, takeoff or landing. Always make certain that the landing
gear switch is in the down position during these operations.
REV.
B
6-12-87
ISSUED
6-2-86
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