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CH47D > Systems > Flashcards

Systems Flashcards

1
Q

ILCA

A

Integrated Lower Control Actuators

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2
Q

RDPS

A

Ratio detector power supply

(Torque to gauge and ECU)

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3
Q

P3 air is provided to three components

A

Bleed Band Actuator
HMA
ECU

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4
Q

How many stages of axial compression?

A

7 & 1 centrifugal

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5
Q

What is the purpose of the “bleed band”

A

Facilitate rotor acceleration

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6
Q

Four sections of T55-GA-714

A

Intake, Compressor, Combustor, Exhaust

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7
Q

Where is the bleed band located?

A

6th stage of compression

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8
Q

Engine oil tank capacity?

A

12 qts

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9
Q

Engine oil system capacity

A

15 qts

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10
Q

ENG OIL LVL light will illuminate

A

2 usable quarts

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11
Q

How does the PTIT indicator get its information?

A

It is a true thermocouple system which generates voltage
-5 thermocouple assemblies
-2 probes each = total 10 probes
Average sent to ECU
ECU sends average to PTIT indicator

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12
Q

What is P3?

A

Compressor exit pressure

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13
Q

How is the engine oil cooled?

A

-Air passing through the air intake over the oil reservoir
-Liquid to liquid cooler

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14
Q

N1 = NG

N2 = NP

A

Gas producer / Free turbine

Power turbine

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15
Q

L FUEL LVL or R FUEL LVL

A

Approximately 20% of fuel remains
320 - 420 lbs

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16
Q

Hot Battery Bus
(2)

A

Hydraulics oil level
APU emergency control

17
Q

Switched Battery Bus
(5)

A

Refuel Station
Magnetic brakes
Emergency exit lighting
Cabin and ramp lighting
Forward XSMN oil level chk lighting

18
Q

Three Hydraulic pressures

A

1390 psi (Brakes)

3000 psi (Flight controls)

3350 psi (starter from APU)

19
Q

RRPM to the Rotor tach is supplied by

A

The main generators

20
Q

What are the sources of AC power

A

Two main 40Kva
and APU 20Kva

21
Q

Source for DC power

A

Transformers and slab battery

22
Q

Utility Pressure Control module
Controls (5 fingers)

A

Start 1
Start 2
Swivel locks, power steering, brakes
Hook, hoist, PTU1, PTU2
Ramp

CH47D (5 decks)

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