Landing Gear and Brakes Flashcards
Which hydraulic system powers the normal brakes?
Right hydraulic system
Which hydraulic system powers both nose wheel and main gear steering?
Center hydraulic system
When does the main gear steering operate?
When the nose wheels are turned approximately 13° or more.
How many degrees of nose wheel deflection do the rudder pedals provide?
7 degrees
How many degrees of nose wheel deflection does the tiller provide?
70 degrees
What powers nose gear actuation and steering during a failure of the center hydraulic system?
Reserve fluid from the center system
When is the ALTN GEAR extension system used to allow gear extension?
- If there is no hydraulic pressure in the center system
- When the gear do not extend properly
What does the brake system consist of?
- Normal brake system
- Alternate and reserve brake system
- Brake accumulator
Which hydraulic system powers the normal brakes?
Right
Which hydraulic system charges the brake accumulator?
RIght
What powers the alternate/reserve brakes if the right hydraulic system pressure is low?
Center hydraulic system
What protections does the anti-skid protection provide?
- Protects against touchdown skid and hydroplaning
- Provides locked wheel protection
How are the brakes controlled when using alternate/reserve braking?
- Left forward and the left center wheel brakes are controlled together as are the right forward and right center
- When a skid is detected within a tandem pair, both brakes for that pair are released
- The aft wheel brakes are controlled independently.
When is RTO braking activated?
RTO braking activates when either thrust lever is retarded to idle above 85 kts. ground speed.
How can the autobrake system be disarmed?
- Applying brake pressure with either brake pedal
- Advancing either thrust lever
- Moving the SPEED BRAKE lever to the DOWN detent
= Rotating the AUTOBRAKE selector to either DISARM or OFF
