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PIPER AIRCRAI<'T CORPORATION
PA-lBR-lOt, ARROW
7.11 LANDING GEAR (continued)
SECTION 7
DESCR/OPERA TION
The main landing gear uses 6.00 x 6 wheels. The main gear incorporate
brake drums and Cleveland single disc hydraulic brake assemblies. The nose
wheel carries a 5.00 x 5 four ply tire and the main gear use 6.00 x 6 six ply
tires. AlI three tires are tube type.
A microswitch in the throttle quadrant activates a warning horn and red
WARNING GEAR UNSAFE light under the following conditions:
a .. Gear up and power reduced below approximately 14 inches of
manifold pressure.
b.
Gear selector switch UP while on the ground and throttle in
retarded position.
c.
Whenever the flaps are extended beyond the approach position
(100)
and the landing gear are not down and locked.
The gear warning horn emits a 90 Hertz beeping sound in contrast to the
stall warning horn which emits a continuous sound.
The nose gear is steerable through a 30 degree arc each side of center
through the use of the rudder pedals. As the nose wheel retracts, the steering
linkage disengages to reduce rudder pedal loads in flight. The nose wheel is
equipped with a hydraulic shimmy damper to reduce nose wheel shimmy. A
bungee assembly is also included to reduce ground steering effort and to
dampen shocks and bumps during taxiing.
The oleo struts are of the air-oil type, with normal extension being 2.75
+/-
0.25 inches for the nose gear and 2.5
+/-
0.25 inches for the main gear
under normal static load (empty weight of airplane plus full fuel and oil).
The standard brake system includes toe brakes on the left and right set of
rudder pedals and a hand brake located below and near the center of the
instrument panel. The toe brakes and the hand brake have individual brake
cylinders, but all cylinders use a common reservoir. The parking brake is
incorporated in the lever brake and is operated by pulling back on the lever
(Figure 7-1) and depressing the knob attached to the top of the handle. To
release the parking brake, pull back on the brake lever; then allow the handle
to swing forward.
ISSUED: SEPTEMBER 15, 1988
REPORT: VB-1365
7-7
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