Honda HondaJet HA-420 Pilots Operating Manual page 140

Honda Aircraft Company
HA-420 SYSTEMS
POM DESCRIPTION
The MLG doors contain separate inboard and outboard doors. The
outboard doors are mechanically operated and are attached to the strut.
The inboard doors are hydraulically operated and have an uplock
mechanism to lock the inboard door in the closed position. Door uplock
and door-open switches are attached to the inboard door actuator and
send signals to the landing gear position and warning system and to the
retraction and extension system.
Nose Landing Gear
The Nose Landing Gear (NLG) supplies shock absorption, support and
directional control of the airplane during ground operations. The NLG
strut attaches to the fuselage and retracts forward into the nose wheel
well. After gear up or down operation, the NLG assumes a locked
position. The NLG drag brace actuator has a downlock mechanism to
lock the nose landing gear in the down position and a NLG uplock roller
engages a latch on the uplock retract actuator hook after the NLG
retracts. Forward and aft doors retract to cover the wheel well opening.
The NLG includes an oleo pneumatic shock, drag brace actuator, forward
doors linkage rod, WOW switch, torque link, steering actuator, hydraulic
tubes for steering control, and an electrical harness. Centering cams in
the shock strut insures that the nose wheel will automatically center
when the NLG shock strut is fully extended.
The NLG contains left and right forward doors and an aft center door.
All doors are operated mechanically and the two forward doors are
closed with the NLG extended.
During towing operations with the NLG torque links disconnected, the
nose wheel can swivel through 360 degrees of rotation. If the NLG
torque links remain connected, a 60-degree deflection limit either side of
center must be observed.
HJ1-29000-005-001
October 30, 2016 1-124
FOR TRAINING PURPOSES ONLY