Nose Gear; Landing Gear Actuators; Landing Gear Actuator Brakes; Figure 42.Nose Landing Gear - Eclipse 500 System Manual

Section 4. Landing Gear and Brakes

4.5.2 Nose Gear

The nose gear assembly incorporates a shock absorbing strut filled with hydraulic
fluid and nitrogen, as well as a shimmy dampener. The nose gear is held in the
retracted position by mechanical brakes on the actuator motor, and in the extended
position by the actuator brake and an over-center folding drag brace. When the nose
gear is retracted, it is completely enclosed by the gear doors. There are two proximity
sensors on the nose gear—Down and Locked and Up and Stowed.

4.5.3 Landing Gear Actuators

The main gear and nose gear have electromechanical actuators that retract to extend
the gear and extend to retract the gear. This design provides minimum exposure of
the extended portion of the actuator to the elements for increased reliability.
Each actuator assembly consists of a ball-screw actuator, an electric motor, and a
mechanical actuator brake.

4.5.4 Landing Gear Actuator Brakes

The main gear and nose gear actuator assemblies contain a spring-driven
mechanical brake that prevents the motor from turning when electrical power is
removed. The actuator brakes hold the gear in the retracted or extended position
and require power to unlock.
In the event of electrical failure, the actuator brakes lock in place and prevent any
movement of the actuators. Manual gear extension is accomplished with an
Version 2.0 April 2007
Figure 42. Nose Landing Gear
Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
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