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Hydraulics and Landing Gear > Lesson 13: BREAKS & SKIDS > Flashcards

Lesson 13: BREAKS & SKIDS Flashcards

1
Q

What are the 2 types of brakes?

A

Cleveland

Goodyear

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2
Q

Describe a CLEVELAND brake

A

RIGID disc

FLOATING caliper

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3
Q

Describe a GOODYEAR brake

A

FLOATING disc

RIGID caliper

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4
Q

This brake uses multiple small PISTONS to force a pressure plate against a disc stack thus applying a clamping force

A

MULTIPLE DISC BRAKE

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5
Q

What are discs commonly made of?

A

Steel

Carbon

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6
Q

This type of brake is used for large aircraft and is made up of a stationary housing, pressure plate, backing plate

A

MULTI DISC BRAKE

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7
Q

What are the advantages of CARBON discs?

A

thicker/lighter

better wear/heat dissipation

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8
Q

What type of brake contains a REDUCTION GEAR?

A

Electro-mechanical carbon brake

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9
Q

What are the 4 types of brake actuators?

A

Independent Master Cylinder
Boosted
Power
Emergency

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10
Q

This type of brake system is primarily used on small aircraft, and secondary on large. It also contains a DIAPHRAGM

A

INDEPENDENT MASTER CYLINDER

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11
Q

On what type of aircraft do we use boosted brakes?

A

MIDSIZE

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12
Q

This type of brake system uses foot pressure and the hydraulic system

A

BOOSTED BRAKE

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13
Q

How does a BOOSTED brake work?

A

Depressing the pedal pulls ROD and forces fluid to brakes

More pressure more fluid provided by SPOOL valve

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14
Q

This type of brake uses the main hydraulic system pressure for large aircraft application

A

POWER brakes

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15
Q

Power brakes incorporate which subsystems?

A

DEBOOSTING
ANTISKID
EMERGENCY BRAKE

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16
Q

What is DEBOOSTING?

A

Pressure reducer for effective brake control

17
Q

What is ANTISKID?

A

Prevents individual wheel skids

18
Q

What do we use fro EMERGENCY brakes?

A

CO2

Brake accumulators

19
Q

What are the 2 primary inspections done on a small aircraft brake?

A

Brake wear

Hydraulic leak

20
Q

How is break wear determined?

A

Length of brake return PIN

Thickness of disc/pad

21
Q

How do we perform brake wear check on large aircraft?

A

With brakes ON

22
Q

Air in the system or brake line deterioration can cause what?

A

Spongy brakes

23
Q

What are the 2 ways of bleeding the brakes not equipped with power brakes?

A

Gravity and pressure

24
Q

A locked wheel can cause what?

A

tire wear
rupture
slip

25
Q

Antiskid systems are designed to send what if the wheel decelerates too rapidly?

A

Brake release order

26
Q

What does a BRAKE RELEASE ORDER do?

A

Sends fluid back to return, bypassing the brake

27
Q

What are the 3 components of the ANTISKID system?

A

Wheel Speed sensors
Control valves
Antskid computer

28
Q

3 main functions of the control unit?

A
  1. electrical signal used by control valve
  2. regulate brake pressure
  3. prevents brakes applied before touchdown
29
Q

When is the antiskid system fully active?

A

20mph+

Hydraulics and Landing Gear (10 decks)

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