Brakes Flashcards
What are material are the brakes?
Carbon Brakes
What type of brake system does the Phenom 300 utilize?
Brake-by-Wire (Rudder pedals actuate the pedal transducers that send the brake inputs to the Brake control Unit (BCU)).
How does Locked Wheel Protection work?
30/70/30
If wheel speed is 30% or less of the other wheel reference speed, a full pressure dump is applied to the locked wheel.
The pressure dump is cancelled when the wheel speed or the “locked wheel” attains 70% of the paired wheel reference speed.
The dropout speed for this functionality is 30kts, allowing differential braking for steering purposes).
What are the threshold speeds for the Anti-Skid Protection?
During acceleration above 30 knots.
During deceleration below 10 knots.
If you were to apply full brakes in the landing flare and try to land that way what would prevent the tires from blowing out when you touched down?
Touchdown Protection (allows the wheels to spin up at touchdown in order to avoid tire blow out, even if pedals are being pushed.)
What does the braking system do when the the landing gear is retracted?
Applies brake pressure to stop wheel rotation before it enters the wheel well.
What does the brake system Initiated Built In Test (IBIT) do?
Exercises the pressure loop components throughout their full range in order to ensure correct operation of the SOV, BCV, and PT.
What happens if the wheel speed input fails?
Anti-Skid is not available.
What would a “BRK FAIL” CAS message indicate during an approach?
Only the emergency/parking brake will be available for stopping.
(Actuating the T-Handle in the cockpit ports brake accumulator pressure to each brake assembly proportional to the amount the handle is pulled).
Is Anti-Skid available for the emergency/parking brake?
No
How many applications does the emergency/parking brake provide?
(for a hydraulic failure)
Six
Unlimited use for BRK FAIL because the hydraulic system replenishes system
Aborted takeoff wait time is how long?
20 minutes after chocks.
Locked wheel protection dropout speed is?
30 knots
Anti skid protection is available down to ______kts.
10 knots
Are your emergency brake applications limited for a brake failure or hydraulic failure?
A hydraulic failure limits to six emergency brake applications, a brake fail is unlimited use of parking brake because it’s continually replenished by the hydrailic system.
