AM.II.E.S28
SkillTroubleshoot nose-wheel shimmy.
From the FAA library
- Chapter 13: Aircraft Landing Gear Systems › Nose Wheel Steering Systems › Shimmy Dampers
Shimmy Dampers Torque links attached from the stationary upper cylinder of a nose wheel strut to the bottom moveable cylinder or piston of the strut are not sufficient to prevent most nose gear from the tendency to oscillate rapidly ... shimmy, at certain speeds. This vibration must be controlled through the use of a shimmy damper. A shimmy damper controls nose wheel shimmy through hydraulic damping. The damper can be built integrally within the nose gear, but most often…
- Chapter 13: Aircraft Landing Gear Systems › Nose Wheel Steering Systems › Small Aircraft
systems for proper operation. 6. Investigate any unusual sounds, such as those caused by rubbing, binding, chafing, or vibration. Nose Wheel Steering Systems The nose wheel on most aircraft is steerable from the flight deck via a nose wheel steering ... system. This allows the aircraft to be directed during ground operation. A few simple aircraft have nose wheel assemblies that caster. Such aircraft are steered during taxi by differential braking. Small Aircraft Most small aircraft have steering capabilities through…
- Chapter 13: Aircraft Landing Gear Systems › Shock Absorbing & Non-Shock Absorbing Landing Gear › Shock Struts
other end is attached to the lower cylinder (piston), so it cannot rotate. This keeps the wheels aligned. The links also retain the piston in the end of the upper cylinder when the strut is extended, such as after takeoff ... Figure 13-19] Nose gear shock struts are provided with a locating cam assembly to keep the gear aligned. A cam protrusion is attached to the lower cylinder, and a mating lower cam recess is attached to the upper cylinder…