Aircraft Brakes

Question 1

Aircraft wheel brakes function by using _____ between a fixed surface and a moving one to bring an aircraft to rest converting kinetic energy into _________.

Answer 1

friction, heat energy

Question 2

Breaking systems have been improved but aircraft have got faster and heavier making ________ a constant problem.

Answer 2

heat dissipation

Question 3

The use of ________ on propeller driven aircraft and ________ on jet engine aircraft plus the use of __________ has helped reduce the work the brakes need to do but even with these, the need for powerful brakes still exists.

Answer 3

reverse pitch, reverse thrust, ground spoilers

Question 4

What do all modern aircrafts now use which are operated by hydraulic systems as their means of slowing down or stopping?

Answer 4

plate brakes

Question 5

In plate brakes, it is used to bear on or grip on one or more rotating plates, similar in principle to disc brakes on a car.

Answer 5

fixed friction pads

Question 6

______ consists of a pair of fixed friction pads bearing on or gripping a metal disc which rotates with the wheel.

Answer 6

Light aircraft brakes

Question 7

With no pressure applied to the toe brake pedal, the pads are ___________ from the disk by the action of it rotating.

Answer 7

knocked away

Question 8

If pressure is applied to the toe brake pedal, hydraulic pressure will build up in the ________ behind the piston.

Answer 8

slave cylinder

Question 9

The reaction of the right-hand brake pad pushing against the disc will cause the _________ to move in the opposite direction carrying the left-hand pad with it until the disc is squeezed between the two pads.

Answer 9

caliper unit

Question 10

On larger aircraft, the pressure required to operate the brakes is _________ than can be generated by the pilot’s feet, so aircraft hydraulic system pressure is used.

Answer 10

greater

Question 11

This are multiple break plates used to increase the braking surface.

Answer 11

rotors

Question 12

These are assemblies where layers of friction materials are mounted on.

Answer 12

stators

Question 13

Rotors and stators greatly increase the surface area, thus, increasing the braking ability and helping to reduce the _______.

Answer 13

brake temperature

Question 14

the rotating brake plates

Answer 14

rotors

Question 15

stationary pad assemblies

Answer 15

stators

Question 16

key to revolve with the outer rim of the wheel

Answer 16

rotors

Question 17

key to remain stationary with the axle

Answer 17

stators

Question 18

Where are the actuating pistons housed?

Answer 18

in a fixed torque plate

Question 19

What pushes on the sliding pressure plate?

Answer 19

actuating pistons

Question 20

Where are the stator and rotor assemblies fitted?

Answer 20

between the pressure plate and a fixed thrust plate

Question 21

When the brake is applied, what pushes the actuating pistons that squeezes the rotors and stators between the pressure plate and the thrust plate?

Answer 21

hydraulic pressure