Flashcards in Phase III, Block I - Airframes Deck (57)
What is a rudder used for?
Controls yaw (rotation of aircraft about vertical axis)
Where is the spoiler located?
Along leading edge flap.
What is the spoiler used for?
Extends into air stream creating drag and slowing airspeed.
What components make up the landing gear subsystem?
- Main and nose landing gear extension/retraction
- Wheel and brakes
- Nose wheel steering
- Position and warning
- Arresting gear
What does the Nose Landing Gear (NLG) strut assembly provide?
- Landing, take-off, taxi energy absorption, and tire/runway compliance.
Where is the Nose Landing Gear (NLG) located?
Underside of forward fuselage.
Where is the launch bar located?
Forward side of NLG shock strut.
What is the purpose of the launch bar?
Engages catapult, applying catapult tow forces to aircraft for launch.
What does the Nose Wheel Steering (NWS) provide?
Assists in giving aircraft directional control during taxiing and take-off procedure.
What device/component is used to control the nose wheel steering?
Rudder pedals located in cockpit.
Where is the Main Landing Gear (MLG) located when retracted?
Well at forward edge of wing outboard and above LH weapons bay.
In regards to the Main Landing Gear (MLG), the Main Wheel is attached to what component?
Axle, part of the piston of cantilevered shock strut.
In regards to the Main Landing Gear (MLG), where is the Drag Brace?
Attached to airframe with swivel fitting and to strut with rotating collar.
In regards to the Main Landing Gear (MLG), what is the purpose of the MLG trunion axis?
Rotates the piston and wheel during retraction.
In regards to the Main Landing Gear (MLG), what is the purpose of the actuator on the drag brace?
Unlocks the MLG for retraction and backs up drag brace locking mechanism.
In regards to the Main Landing Gear (MLG), what is the purpose of the retract actuator?
Attached to structure through a mechanism to increase structural integration.
In regards to the Main Landing Gear (MLG), what is the purpose of the Built-in Jack Adaptors?
Assist tire, wheel, and brake maintenance.
How are Main Landing Gear (MLG) brakes operated?
Independently with dual-redundant brake position sensors incorporated in rudder pedal assembly.
What is the Arresting Hook used for?
Flight deck operations, and emergency situations
The arresting hook can deploy at what velocity?
The arresting hook can engage at what velocity?
What is EHAS?
Electro Hydrostatic Actuating System
What is the by-product of the Electro Hydrostatic Actuating System?
Greatly reduces maintenance man-hours due to eliminating a number of components throughout airframe, such as hydraulic tubing and hose line.
Describe System A and System B.
- Systems operate independently
- Provide redundant hydraulic power for operation of selected utility and safety-critical functions on aircraft.
What is HPGS?
Hydraulic Power Generation System
What does the Hydraulic Power Generation System provide?
Fluid storage, fluid conditioning, system monitoring