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C-2A > Hydraulics/Airframe > Flashcards

Hydraulics/Airframe Flashcards

1
Q

Hydraulic service

A

MIL-PRF-83282

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2
Q

Hydraulic characteristic

A 
Coolant
Incompressible
Non corrosive
Lubricant
Synthetic based
Hazardous
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3
Q

Combine hyd components

A 
Reservoir
Shutoff valve
Hyd pump
Pressure gauge
Check valve
Accumulator
Filter
Solenoid operated isolation valve
Relief valve
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4
Q

Combine hyd reservoir serviced to?

A

3.34 Gal

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5
Q

Caution light illuminates when fluid level goes below?

A

2/3 of the serviced capacity.

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6
Q

14th stage bleed air at?

A

40 psi

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7
Q

Hyd shutoff valve

A

In nacelle

Close by pulling T-handle will close all four.

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8
Q

Combine pumps

A

25 gal/min

3000psi

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9
Q

Hyd press gauges

A

26vac transformer bus no 1&2

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10
Q

Hyd accumulators combine and flight volume?

A

Combine 100 cubic inch

Flight 50 cubic inch

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11
Q

Accumulator features

A

Prevent hyd shock to system

Supplements pump outputs if output not sufficient.

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12
Q

Combine hyd accumulator nitrogen PRECHARGE?

A

2000 -/+ 100 psi

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13
Q

Filter purpose

A

Keeps impurities out of critical areas of system

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14
Q

Filter red button pops at ____ psi deferential

A

70 +- 10

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15
Q

How many total filters bypass and non bypass.

A

15 total
9 bypass
6 non bypass

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16
Q

Bypass filter ops

A

Allows bypass flow of clogged element.

Identify by a large hex nut safety wired to the side of the body.

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17
Q

Non bypass filter

A

Clogged element will block outflow filter

No large hex nut

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18
Q

Combine hyd subsystem?

A 
E gen
Windshields wiper
Nose-wheel steering
Brake (2200psi)
Landing gear
Flaps
Cat extend 
Wing fold/ jury strut 
Ramp
Tail hook (up)
Tail skid
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19
Q

Hydraulic filters location?

A 
2 in the nose (3,4)
3 near combine system
5 near flight system
1 starboard side (8)
2 tail (10,13)
1 each engine (1,2)
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20
Q

Before selecting tail hook down, position the hydraulic isolation valve to?

A

TO & LDG

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21
Q

Combine system relief valve ops
Open:
Full open:
Close below:

A

3400 psi
3785 psi
3100 psi

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22
Q

Flight reservoir serviced capacity to?

A

1.31 gal

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23
Q

Caution light illuminates when fluid goes below?

A

2/3

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24
Q

Flight pumps

A

7.5 GPM

3000 psi

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25
Q

Flight system pressure gauge?

A

2000 +/- 100 psi

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26
Q

Flight system relive valve?
Open:
Fully open:
Close below:

A

3400 psi
3785 psi
3100 psi

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27
Q

Actuator purpose

A

Turns fluid into mechanical action

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28
Q

4 type of actuator?

A

Single: fluid applied one side piston
Double: either side piston
Tandem: two double acting actuators joined together.
Rotary: converts fluid energy into rotary motion.

29
Q

____ ruder actuators with ____ series (flt hyd) actuator.

A

3 : 1

30
Q

Flap handle

A

Four position handle 0,10,20,30 degree.

Two extra, emergency up & down

31
Q

Emergency flaps, electrical fail?

A

Use manual hydraulic override, with aft crew help.

32
Q

Emergency flaps, hyd fail?

A

Use electric motor via E up & down position on flap handle.

33
Q

Windshield wiper ops?

A

Max rate 325 beats / min

34
Q

Wing fold/lock lever controls

A

With weight on wheels (WOW), 28 VDC signals selector valve to active wing fold actuator.

35
Q

Wing-fold meshanism

A

Hyd wing actuator
Hyd wing locks
Mechanical safety latches
Timer check valve

36
Q

Warning flags

A

Wing spread-sequence-safe for flight.

37
Q

Wing spread response is:

A

Spread, locked and free (ailerons) with wingtip and flush flag.

38
Q

Jury struts

A

Near wing tips, actuator pops open a hook which attaches to pin on vertical stab with wings folded.

39
Q

Wingfold/spread reqs

A

Flap must be at 20 degree

Should not cycle hyd equip with wing fold actuation.

40
Q

Whats required for wing-fold / spread manual override

A

Hyd power (Jenny)

41
Q

Nosewheel steering

A

The nosewheel steering system improves the ground handling capabilities of the aircraft.

Electrically engaged, hyd operated

+/- 58 degree either side of centerline

Centering cam centers gear when retracted.

42
Q

The yaw damper?

A

Functions automatically to augment short period lateral damping.

43
Q

Steering damper

A

Permit control of nose-wheel steering 58 degree to the left and right of the a/c centerline.

44
Q

Landing gear safety lock

A

Prevent raising gear on deck

Located on port side of center pedestal.

45
Q

Wheel/flap indicator

A

Gear up and lock
Barber poles, gear in transit
Gear down and luck

46
Q

Wheels warning light

A

Flap > 10 degree

PLA below minimum cruise

Gear not down and lock

47
Q

Nosewheel it consists of?

A

a dual-wheel unit,
a nosewheel steering mechanism,
a catapult tow link,
and a drag brace on a hydraulic shock strut.

48
Q

The tailskid operates in conjunction with?

A

the main landing gear.

49
Q

When is a SKID NOT DOWN indicator will

Appear on the caution lights panel?

A

If the tailskid remains up when the aircraft is in a landing configuration.

50
Q

Where the tailskid selector valve is located?

A

on the right side of the fuselage forward

of the cargo ramp and can be manually operated to raise or lower the tailskid in the event of electric solenoid failure.

51
Q

The emergency brake accumulator is precharged with nitrogen to?

A

800 psi at 70 F +/- 15 psi

52
Q

A tow link mounted forward of the nose gear is used to?

A

guide

the aircraft to the shuttle from the lead-in track and to attach the aircraft to the shuttle.

53
Q

A trail bar bellcrank aft of the nose gear strut attaches the aircraft to the catapult through a release element designed
to fail at?

A

53,000 pounds of tension.

54
Q

When is the TOW LINK caution light will come on and the approach lights will flash.

A

if the tow link is not in the intermediate position

When the nosewheel is cocked past the 10 position with weight off the left main strut.

55
Q

The main gear strut extender system is for what?

A

to provide sufficient clearance

between the aircraft tailskid and deck hardware during catapult launch.

56
Q

the two extender pistons, increasing the length of each shock strut approximately?

A

8 inches.

57
Q

What protect the aft fuselage during landing?

A

Tailskid

58
Q

How are the two forward door main landing gear operated?

A

Hydraulically

59
Q

How are the two aft doors MLG operated?

A

Mechanically connected to the shock strut

60
Q

What type of brake the COD has?

A

A tri metallic, self adjusting, disk type hyd brake.

61
Q

The L & R air/ground safety switches operate when the strut is?

A

1.0 in from fully extended position.

62
Q

The left compression switch operates after the strut has compressed?

A

9-0 inches

63
Q

Type of COD flap?

A

Fowler type

64
Q

What driven the flaps?

A

Central gearbox hydraulic motor

65
Q

What cause the cat extend caution light to come on during Taxi?

A

If the nosewheel has turned past 60 degrees

66
Q

What kind landing gear does the C2 has?

A

Retractable tricycle landing gear

67
Q

What is displayed in the wheel window, if a gear is not in the selected position?

A

Barber pole

68
Q

What type landing gear does the C2 has?

A

Tri metallic, self adjusting, disk type brake.

C-2A (15 decks)

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