Landing Gear Flashcards
What are two sources of power used to extend and retract landing gear?
They are electrical and hydraulic.
When should landing gear retraction checks be accomplished?
During annual and other type inspections, after replacing landing gear components, and after any hard landing.
What is used to inflate an oleo type landing gear shock strut?
Inflate the strut with a high-pressure source of dry air or nitrogen.
Where would you look to find proper tire inflation information?
When inflating aircraft tires the amount of pressure is determined by such factors as tire size, outside air temperature and the gross weight of the aircraft. Specific tire inflation information may be found in the Operators Manual, the Aircraft Maintenance Manual and in special tire inflation pressure charts based on gross weight.
What is the purpose of a hydraulic shimmy damper?
It is a unit designed to prevent nose wheel vibration or shimmy during taxiing, landing, or takeoff.
What type care should be given to landing gear shock struts?
They should be inspected regularly for leakage -of fluid and for proper extension. The exposed portion of the strut piston should be wiped clean daily and inspected for scoring or corrosion.
What is the effect of under inflated tires?
Under inflation causes rapid or uneven wear at or near the edges of the tread.
What is the purpose of the rubber packing mounted on the mating surface of the outer wheel half of a split type wheel?
To prevent air leakage from the tubeless tire used with this wheel.
What are three types of aircraft brake systems?
The independent, the power boost, and the power control type.
What is the purpose of a shuttle valve in a power brake system?
Each brake actuating line in a power brake system incorporates a shuttle valve for the purpose of isolating the emergency brake system from the normal brake system. When emergency brake actuating pressure enters the shuttle valve, the shuttle is systematically moved to the opposite end of the valve. This closes off the normal hydraulic brake system actuating line and allow the emergency fluid to actuate the brakes.
. What component in the landing gear system keeps the landing gear in alignment?
The landing gear torque-1inks.
What is used to prevent a nose gear from being retracted with the wheel out of the center position?
Centering devices, such as an internal centering cam or an external track, that straighten the nose wheel before it enters the wheel well.
What is the purpose of the fusible plug in some aircraft wheels?
It is designed to melt at specific elevated temperatures and relieve air pressure to prevent the tire from blowing out or breaking of the wheel.
What is the purpose of the antiskid system?
To bring the airplane to a stop without skidding by providing effective braking under all types of runway conditions.
What are two methods of bleeding brakes?
The gravity method and the pressure method.
