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GulfStream IV serial # 1214-subsequent > Landing Gear and Brakes > Flashcards

Landing Gear and Brakes Flashcards

1
Q

What is the Emergency Landing Gear Nitrogen Blowdown bottle pressure?

A

3000 PSI @ 70 degrees F

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2
Q

What is the maximum speed for lowering and raising the Landing Gear (VLO)?

A

VLO = 225 KCAS

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3
Q

Anti-Skid Braking is available from which hydraulic systems?

A

Combined Hydraulic System Utility Hydraulic System

Aux Hydraulic System

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4
Q

What is the maximum tire speed GIV SP (s/n 1214 & sub or non-SP
with ASC 190)?

A

195 Kts GS

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5
Q

What is the maximum speed for flying with the landing gear extended (VLE)?

A

VLE = 250 KCAS

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6
Q

What is the maximum speed for alternate extension of the landing gear (operation of the emergency gear handle)?

A

175 KCAS

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7
Q

How are the wheel well doors opened in preparation for the exterior preflight
inspection?

A

Through the auxiliary hydraulic pump, by activating the ground service
valve after the door pins have been inserted

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8
Q
  1. During the exterior preflight inspection, what is the minimum acceptable
    reading for the brake accumulator pre-charge?
    o
A

1200 psi at 70 F

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9
Q
  1. How do you check the parking brake accumulator pre-charge?
A

Chock the aircraft and bleed off pressure by cycling the parking brake handle,
or operate the dump valve in the nose wheel well

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10
Q
  1. During the exterior preflight inspection, what is the minimum acceptable
    reading for the emergency landing gear extension air bottle?
    o
A

3000 psi at 70 F

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11
Q
  1. What is the function of the landing gear emergency reset handle?
A

To reset the 3 landing gear dump valves to hydraulic operation

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12
Q
  1. Why must the nutcracker test switch not be pressed while on the ground?
A

Depressing the test switch simulates the nutcracker in-flight condition,
which affects many airplane systems including momentarily unlocking the
landing gear handle downlock solenoid

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13
Q
  1. If the gear does not retract after takeoff but the handle moves to the “UP”
    position, what is the likely cause?
A

The landing gear pins have not been removed from the gear struts

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14
Q
  1. With “BRAKE FAIL” CAS message, what is a likely result upon landing?
A

A complete loss of normal pedal braking

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15
Q
  1. In a GIV with a HMAB brake system, what is the recommended procedure if an
    “ANTI-SKID FAIL” CAS message illuminates during landing roll-out?
A

Leave the anti-skid switch “ON”, as there may still be anti-skid protection on
one pair of wheels (inboard or outboard)

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16
Q
  1. If the landing gear handle is in the “UP” position, what is indicated by a red
    light in the handle?
A

One or more of the landing gear doors are not closed

17
Q
  1. If the landing gear handle is in the “DOWN” position, what is indicated by a
    red light in the handle?
A

One or more of the landing gear struts are not down and locked

18
Q
  1. How many emergency landing gear extensions are available with a fully
    charged (3000 psi) nitrogen bottle?
A

One

19
Q
  1. What systems would be affected if the nutcracker system failed to shift to the
    air mode after takeoff?
A

Landing gear will not retract
Ground spoilers will deploy with switch armed and power levers at idle
Thrust reversers can be deployed in flight
Pressurization will remain at 0.25 psid and the cabin will climb at approximately
same rate as Aircraft

20
Q
  1. With a total loss of electrical power on the aircraft, what is the affect on the
    landing gear system?
A

The landing gear will operate normally but without indications

21
Q
  1. How can a “STEER BY WIRE FAIL” CAS message be cleared?
A

Cycle the nosewheel steering switch

22
Q
  1. What does the amber “ANTI SKID FAIL” CAS message indicate?
A

Indicates that the normal anti-skid control circuit has failed

23
Q
  1. What does the amber “BRAKE FAIL” CAS message indicate (HMAB aircraft)?
A

Indicates loss of both combined and aux pressure while pedals are depressed

24
Q
  1. What systems are affected if the nose wheel nutcracker fails to the air mode?
A

Nose wheel steering circuit

‘G’ Monitor system

25
Q
  1. What prevents blown tires with hot brakes?
A

Fuse plugs

26
Q
  1. What is the purpose of the AUX Pump / Brake System Check during the Before
    Starting Engines checklist?
A

To test the automatic latching feature of the aux pump when combined or
utility system pressure is not available for braking

27
Q
  1. What is the purpose of the BRAKE NUTCRACKER O’RIDE switch (brake-by-
    wire aircraft only)?
A

To allow the crew to perform a brake confidence check during flight

28
Q
  1. What type of anti-skid protection is available with the use of the parking /
    emergency brake?
A

Anti-skid protection is not available with parking /emergency brake

GulfStream IV serial # 1214-subsequent (17 decks)

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