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AC upgrade > aircraft systems > Flashcards

aircraft systems Flashcards

1
Q

Acceleration bleed valves are located where? when do they close?

A

1) Located at 5th and 10th stages

2) Closes at 94%

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2
Q

What are the engine mounted accessories?

A

1) Speed Sensitive Control (electrical)
2) Speed Sensitive Valve (mechanical)
3) Oil Pump (engine) (power section and filter)
4) Oil Pump (engine) (Scavenge)
5) Fuel Pump
6) Fuel Control

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3
Q

How many stages are in the turbines?

A

1) 4 Stages

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4
Q

how many thermocouples are on each engine?

A

1) 18

2) they have 3.5 - 22 degrees per thermocouple

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5
Q

How many Turbine sensors are there?

What temperature?

A

1) 4 Sensors

2) 700 degrees F

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6
Q

How many Nacelle Overheat rights?

A

1) 7 at 300 degrees F

2) six on aircraft without oil cooler augmentation

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7
Q

What Items happen when the ignition relay is energized during start?

A

1) Parallel
2) Ignition
3) Enrichment
4) Drain Valve

“PIED”

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8
Q

What is located in the Reduction Gear Assembly?

A

1) Reduction Gear Train
2) Prop Brake
3) NTS System
4) Safety Coupling
5) Reduction Gear Accessories

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9
Q

What are the Reduction Gear Accessories

A

1) Generator
2) Hydraulic Pump
3) Oil Pump (prop)
4) Starter
5) Tach Generator

GHOST

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10
Q

What info do you know about the Prop Brake?

A

1) Disengaged by oil Pressure above 23% rpm
2) Below 23%, braking surfaces in contact
3) Prevents reverse rotation of prop
4) Unlocked by Aux feather motor (or starter if motor does not release the brake)

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11
Q

Describe the two torque meter shaft and their functions

A

1) outer shaft - Reference shaft to torsional deflection of inner shaft.
2) inner shaft - transmits power from engine to gearbox.

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12
Q

What items go into the fuel control?

A

1) throttle movement/position
2) RPM
3) inlet Temperature
4) Pressure

TRIP

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13
Q

Talk about the functions of the TD System

A

1) Compensates for
- Component variations
- atmospheric variables
- fuel density

2) Temp Limiting: 0 - 65 degrees acts when TIT exceeded.
3) temp controlling: 65-90 degrees controls TIT IAW throttle

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14
Q

When must you go on crossfeed?

A

1) Per the dash 1 < 6,000
2) Per v3 <8,000 when gauge inop
3) Per 55 ECG sup <10,000 when main tank inop

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15
Q

What is the formula for dumping

A

1) you can dump 400 lbs per minute per pump.

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16
Q

How many Rollers are on the UARRSI

Where are the latches located?

A

1) 8 Rollers

2) 2 latches at 3-9 o’clock

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17
Q

Induction Coil does what?

A

1) Talks to receiver boom coil

2) provides interphone link

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18
Q

How long does it take the line drain to work? What engine does it go to?

A

1) 8-10 minutes

2) Number 3

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19
Q

How long does it take the sump drain to empty? where does it go?

A

1) 1-2 minutes

2) Drains overboard approx 2 gallons.

20
Q

AR Valve is powered by what?

A

Essential DC

21
Q

AR panel primary power?

Legacy? vs AVP?

Secondary?

A

1) Primary Legacy = Essential DC
2) Primary AVP = RH DC
3) Secondary = ISO Dc

22
Q

What happens when the fire handle is pulled?

A

BEEFFSHOP

1) Bleed Air shuts off
2) Extinguisher System control valve positioned
3) Extinguisher Agent Discharge Armed
4) Fuel Shutoff Valve Closes
5) Firewall shutoff valve closes
6) Starter control circuits de-energized
7) Hydraulic shutoff valve closes
8) Oil shutoff valve closes
9) Prop electrically signaled to feather

23
Q

What happens when the Condition level goes to feather?

A

1) Fuel Shutoff Valve Mechanically Closes
2) Fuel Shutoff Valve Electrically Closes
3) Prop Mechanically signaled to feather
4) Prop Electrically signaled to feather
5) Prop Ax Feather motor energized

24
Q

How does Oil Cooler Augmentation work?

A

1) Uses 14 stage bleed air

2) Disabled by switches when throttles in flight range. When Oil cooler flaps are less than 90% open.

25
Q

What are the synchrophaser functions?

A

1) Signals speed bias motor to adjust speeder spring tension
2) Throttle Anticipation
3) Speed Stabilization
4) Synchrophasing

26
Q

Purpose of the Spinner is?

A

1) Cool the Dome

2) Provide Aerodynamic Slipstream

27
Q

What is inside the dome assembly?

A

1) Pitch Changing Mechanism
2) Low Pitch Stop
3) Forward port of oil to increase blade angle

28
Q

Control Assembly Valve Housing has what?

A

1) Pilot Valve (Speed Spring/Flyweights/Speed bias motor)
2) Feather Valve
3) Feather solenoid
4) Feather Actuating Valve
5) NTS Valve

29
Q

Control Assembly Pump housing has what?

A

1) Main Pump - 20 QPM
2) Standby Pump
3) Scavenge Pump
4) Aux Pump
5) Aux Scavenge Pump

30
Q

What is on the LH DC for AVP?

A

1) Valves
- Bleed Air, Emergency Brake, Hydraulic

2) Switches

31
Q

What is PLT AVI DC Bus AVP?

A

1) Norm: Powered by LHDC

2) ALT: Powered by RHDC

32
Q

What is on the ISO DC Bus?

A

1) Bus Tie Control
2) Ignition Control
3) Start Control
4) GTC and ATM Control
5) Generator Control
6) LB Jettison

33
Q

What is on the Battery Bus?

A

1) AC Ext power control
2) Alarm Bell, Troop jump lights
3) DC voltmeter battery
4) ELT, Emer exit light
5) ESIS secondary power
6) ISO DC bus off indicator

34
Q

CP AVI DC Bus what is on it?

A

1) Norm: Powered by RHDC

2) ALT: Powered by LHDC

35
Q

What is on the RH DC buss

A

1) Fire Detection

2) Valves (fuel dump, fuel shutoff)

36
Q

Booster System has a check valve? for hydraulics?

A

1) FALSE only the utility

37
Q

No ground test valve on the booster system

A

1) true

38
Q

Alternate Gear Extension Methods in order

A

1) Override the landing gear selector valve
2) Manual Gear Extension Of main gear
3) Emergency Hydraulic extension of the nose gear
4) Nose landing gear manual extension after complete loss of hydraulic pressure.
5) Main gear extension (free fall) after normal and manual extension methods fail.

39
Q

How many turns does it take to move down the gear for the manual hand crank?

A

330

40
Q

If you break in a turn … do what?

A

1) Record in a 781

2) ensure you go straight to allow mains to align before turning again.

41
Q

If nose when shimmy happens during landing roll do what?

A

1) Decelerate gradually and apply up elevator to keep as little load on nose wheels as possible.

42
Q

Nose Gear Tire Failure…

What happens if 1 fails?

What happens if 2 fail?

A

1) Execute normal landing

2) keep nose wheel off ground as long as possible. Use Reverse and min breaking. Taxi not recommended.

43
Q

If you have a main tire failure? do what?

1 tire?
2 tires?

A

1 Tire

  • Touch down the nose gear ASAP
  • Use max reverse
  • Taxing is not recommended

2 tires

  • Line up on the side of the runway corresponding to the good tires.
  • Use wheel brakes of good tires only.
44
Q

unsafe nose indication, what do you do?

A

1) Look through inspection window to ensure that the band of fluorescent paint on actuator is visible. Verifying the gear is down and locked.

45
Q

What are the sources of bleed air?

A

1) GTC
2) Engine Diffuser section
3) External air supplied from an external source (like AC POWER CART)

AC upgrade (8 decks)

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