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T-1 Jayhawk > Hydraulic System > Flashcards

Hydraulic System Flashcards

1
Q

What 4 systems are operated by hydraulics?

A

Flaps, Landing Gear, Power Brakes, Speed Brakes

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2
Q

What are the 3 secondary flight control systems?

A

Flaps, Speed brakes, Trim

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3
Q

Is the landing gear handle mechanical, electrical, or hydraulic?

A

hydraulic

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4
Q

Hydraulic reservoir capacity is:

A

1.2 gallons

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5
Q

HYD LEVEL LO illuminates at:

A

0.6 gallons in hyd reservoir

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6
Q

Bleed air pressure to the hydraulic reservoir is:

A

15 psi

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7
Q

The hydraulic pumps are ____ displacement pumps

A

Variable

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8
Q

Hydraulic normal operating pressure

A

1,500 psi

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9
Q

Hydraulic pump flow varies from 0 to __ gallons per minute

A

3.9

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10
Q

L or R H PMP PRESS LO illuminates at:

A

<750 psi downstream of one hydraulic pump

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11
Q

How many filters are in the hydraulic system?

A

3

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12
Q

Hydraulic filters have automatic bypass at __ psi

A

50

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13
Q

Hydraulic indicator is calibrated from 0 to ____ psi

A

2000

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14
Q

The hydraulic pressure relief valve starts to open at ____ psi

A

1650

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15
Q

If hydraulic pressure reaches ____ psi, the crew must open the bypass valve

A

1850

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16
Q

The hydraulic valve package controls flow to what 3 systems?

A

landing gear, flaps, speed brakes

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17
Q

How many return lines are in the hydraulic system?

A

2

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18
Q

Hydraulic system normal pressure range

A

1350 to 1550 psi

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19
Q

Landing gear warning horn illuminates when…

A

1) Throttles < 70% N2 and flaps 0 or 10. 2) Flaps beyond 10.

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20
Q

A solenoid locks the gear handle when…

A

… the left switch detects weight on wheels

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21
Q

Nosewheel deflection range with only nosewheel steering:

A

25 degrees each side

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22
Q

Nosewheel deflection range with brakes and differential power:

A

45 degrees each side

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23
Q

EMER DOOR CLOSE uses _____ to close the main gear fuselage doors

A

nitrogen

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24
Q

Gear extension and retraction takes approx. how long?

25
To operate the EMER L/G DOWN handle, ..
push it down and pull out about 10 inches
26
Emergency gear extension may take approx. how long?
30 seconds
27
Maximum speed for emergency gear extension
150 KIAS
28
Landing gear max airspeed/altitude
200 KIAS / FL200
29
Minimum strut extension for main gear
1.1 inches
30
Normal strut extension for nose gear
3.5 inches
31
For emergency extension, the inboard main gear doors, main gear, and nose gear are ______ released
mechanically
32
Brake accumulator charge
900 +/- 50 psi
33
Antiskid protection is available above ___ knots tire speed
14
34
ANTISKID FAIL illuminates
1) loss of antiskid power with gear down, antiskid on. 2) Gear down, antiskid OFF. 3) dump command for long time
35
Nitrogen for emergency brakes allows _ to __ applications (_ to __ if nitrogen used to raise inboard gear doors)
7 to 10; (7 to 9)
36
Brakes will fail at ____ million foot-pounds
14.8
37
Thermal fuse plugs release at...
430 degrees F, or 8.1 million foot-pounds
38
Max temperature doesn't reach brake assembly for up to __ minutes
15
39
What component allows either pilot to apply brakes?
Mixing valves
40
Landing without hydraulics (no flaps, speed brakes, power brakes, or antiskid) increases landing distance approx...
90% over computed 30-flap distance
41
REFILL line on the hydraulic reservoir is __ gallons
0.8
42
What are 2 reasons for bleed air pressurizing the hydraulic reservoir?
Prevent foaming, and ensure continuous supply to the pumps
43
Emer gear extension may require yaw: apply rudder into the gear with the ____ indication
unsafe
44
The disc brake wear pin will protrude about __ inch from the flange
3/4
45
Do not approach overheated brakes for...
30 minutes
46
Maximum rudder deflection
30 degrees each side
47
What 3 functions does the electric servo connected to the rudder serve?
Autopilot, rudder boost, yaw damper
48
Elevator range of movement
Up 25 degrees, down 12 degrees
49
Outboard spoilers range of movement
-14 degrees to 72 degrees
50
Inboard spoilers range of movement
-14 degrees to 68 degrees
51
FLAP ASYM is triggered by
7 degrees difference between L and R main flaps
52
G limitations, flaps up
-1 to 3.2 G's
53
G limitations, flaps extended
0 to 2 G
54
Speed brake function moves spoilers to __ degrees
36
55
Speed brake operation time (inflight / ground)
2.6 seconds / 0.6 seconds
56
Stabilizer (pitch) trim range of movement
-1.5 to 12 degrees
57
Annunciator sounds if pitch or roll trim is activated for over _ seconds
5
58
Roll trim tabs range of movement
25 degrees each way
59
Rudder trim tab range of movement
25 degrees each way

T-1 Jayhawk (11 decks)

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