Landing Gear Flashcards

1
Q

Which hyd system powers the LDG gear

A

Green

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2
Q

Above what speed is LDG gear hydraulic supply cut off

A

260

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3
Q

When do the two landing gear computers switch (LGCIUs)

A

On a gear extension

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4
Q

Which hyd system controls normal braking

A

Green

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5
Q

Which hyd system controls altn breaking and nws plus parking brake and brake accumulator

A

Yellow

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6
Q

What computer is the LDG gear indicator panel connected to

What computer is each LDG gear triangle connected to on the ECAM wheel page

A

LGCIU 1

Each half is one lgciu

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7
Q

Limitations:
LDG gear retraction
LDG gear extension
LDG gear extended
LDG gear max alt

A

220
250
280 .67
25,000

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8
Q

Max speed where hand wheel or rudder pedals will move the nosewheel

A

Hand wheel 80kts
Rudder pedals 130kts

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9
Q

Max steering deflection of nosewheeel with hand wheel and rudder

A

Hand wheel 75 degrees
Rudder 6 degrees

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10
Q

What are the 3 failed brake scenarios

A

Alt brakes with anti skid
Altn brakes without anti skid
Altn brakes without anti skid and only accumulator

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11
Q

How many full brake applications should you get on the accumulator

A

7

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12
Q

For how many hours should the accumulator hold the parking brake

A

12

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13
Q

When does the decel light come on in the auto brake buttons

When will it normally not come on

A

When the deceleration is 80% of rated

On contaminated runways

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14
Q

When is there a green arc above a LDG gear wheel

When does it turn amber

A

Above the hottest wheel when temp is above 100

Above 300 (max takeoff temp)

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15
Q

If you lose LGCIU 1 or 2. What seemingly unrelated systems will also not work

A
  1. Gpws and rev 1
  2. Rev 2
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16
Q

Above what speed will the auto brake function on an RTO

A

> 72kts due to ground spoiler arming

17
Q

How many seconds after ground spoilers deployment will auto brake lo and med start

A

4 and 2 seconds

18
Q

Below what speed is anti skid not active

A

20kts

19
Q

Max nosegear towing angle

A

95 degrees

20
Q

What is a hidden problem with an auto brake failure

A

If a wheel tachometer is failed, it will release the brake on that wheel permanently
Landing distance should be x1.2

21
Q

What does the red down arrow next to the LDG gear handle indicate

A

Aircraft is in landing config, but gear is not down

22
Q

Which ADRs supply the airspeed for the landing gear safety valve (to close it above 260kts)

A

1 and 3

23
Q

Max tire speed

A

195kts