1.10 Nose Wheel Steering and Brake System Flashcards
What two methods of steering does the aircraft have?
1) Mechanical Nose Wheel Steering
2) Differential Braking
What degree L and R can the nose wheel turn with NWS?
11.5 deg
What degree L and R can the nose wheel turn with differential braking?
60 deg
Can the rear pilot discontinue any braking applied by the front pilot?
Yes through the use of the heel extensions.
What switch in the cockpit is there that controls the anti-skid?
The Anti-Skid
When the Trim Ail PWR switch is turned off, what does this do to the brakes?
Powered braking and anti-skid is no longer functional.
What is Mode 1 Braking?
Powered Brakes AND Anti-Skid are available and functional
What is Mode 2 Braking? When can this occur?
Powered Brakes WITHOUT Anti-Skid
- This occurs when either Anti-Skid is switched off or there is a malfunction
What is Mode 3 Braking? When can this occur?
Manual Braking only - no powered brakes or anti-skid.
Failure of main or emergency hydraulic systems
- TRIM AIL PWR switch selected to Off
On touchdown, what either criteria needs to be met before braking can commence?
1) System detects wheel spin; OR
2) 3 seconds have elapsed after the WOW switch has detected touchdown.
What does the locked wheel crossover circuit do?
Prevents potential loss of control during braking when one wheel encounters a low frictions surfaces such as a wet or icy runway.
How does the locked wheel crossover circuit work?
If the speed of one main wheel is less than 30% of the other wheel, the brakes are automatically released.
Above what speed does the locked wheel crossover circuit work?
25 kts
Below what speed does anti-skid stop working?
10 kts
What must be done with the brake pedals when operating the park brake?
Pump the brakes
