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Aircraft Systems Flashcards

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1
Q

T5

A

Free power turbine inlet temperature

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2
Q

Nr

A

Main rotor speed

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3
Q

Low rotor tone limits

A

98% +/- .5%

Steady tone at 91% +/-.5%

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4
Q

Tail gearbox or intermediate gearbox chip detector limits

A

Chip too big to burn off or 140°C +/-6°C

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5
Q

Usable fuel

A
  1. 4 lbs pressure

4234. 8 lbs gravity

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6
Q

Boost pumps fail

A

16.5 psi

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7
Q

Low-level fuel caution light

A

170-200 hover

210-280 3° nose down

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8
Q

Fuel dump rates

A

600 both
315 forward
365 aft

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9
Q

On engage droop stops go out at

And do what?

A

75% Nr

Prevent downward motion of main rotor blades

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10
Q

Sources of AC power

A

External
Inverter
Two generators

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11
Q

Sources of DC power

A

Battery

2 TRUs

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12
Q

One TRU fail, or both fail

A

One - monitored bus dropped

Both - monitored bus and primary bus dropped, essential run off battery

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13
Q

DC busses

A

Essential bus for DC flight instruments and all equipment necessary for safety of flight
Primary bus for all equipment essential for Mission completion
Monitored bus for equipment not required for safety of flight
Battery bus for the pilot domelight cockpit spotlights and CPI

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14
Q

Radio bus 1

Power from and to

A

Powered by the essential bus via the radio master one switch and supplies power to: ILS/VOR, VHF/AM, ICS, Secure voice, IFF, TACAN, UHF
(IVISITU)

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15
Q

Radio bus 2

Power from and to

A

Powered by the primary bus via the radio master 2 switch and provides power to: Doppler, OTPI, UHF antenna, HF, ASN-123, UHF/ADF, LF/ADF
(DO U HAUL)

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16
Q

What is the purpose of the tail rotor

A

To counteract the forces of the main rotor

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17
Q

Max speed

A

151 KIAS

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18
Q

Fuel consumption

A

1000 fwd

1200 hover

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19
Q

Basic weight and Max gross weight

A

14,500

20,500

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20
Q

Engine type

Components

A

2x GE T58-GE-8F axial flow gas turbine engines of the turboshaft type

Gas generator
free power turbine

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21
Q

Ng

A

Gas generator compressor speed which is dependent upon fuel flow and monitored by the fuel control unit

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22
Q

Anti-flap restrainers

A

Released at 25% Nr

Prevent upward motion of main rotor blades

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23
Q

Ibis

A

Pressure indicator at blade root combined with detector assembly gives visual and in-flight indication (master caution) of blade serviceability

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24
Q

Main gearbox

A

Couples both engines through single planetary gear assembly (which reduces engine RPM)to the rotor head

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25
How many hydraulic systems and what are they
Three Primary auxiliary or ASE utility
26
Accessory section | Driven by and supplies power to
Number one engine Primary utility and AUX hydraulic pumps, HP torque meter oil pump, 2 AC generators, and two main gearbox lubricating oil pumps
27
MGB oil indications | Temp & presure
120°C | 12 psi
28
Nf
Free power turbine speed, dependent upon speed selector level position and rotor load
29
Inverter, powered by, power to?
Powered by DC battery or external DC, to provide 115 volt VAC to pre-start instruments
30
``` AC power distribution #2 gen load ```
``` Pilot VGI Heater blower No.2 fuel pump Copilot windshield anti-ice AC utility receptacle ```
31
No. 1 gen fail
No.2 drops load (except pilot VGI and sonar) and picks up No.1's load
32
No.2 gen fail
Entire load dropped, No.1 picks up pilot VGI
33
Battery power | Purpose? Recharged by?
24 volt 22 amp Limited ground ops and emergency power source in event of dual TR failure Charged by TRs during normal ops
34
No 3 radio bus
``` Powered from primary bus, no switch VHF/FM KY-75 RadAlt Sonobouy Rxs Sonar power Sonar guillotine ```
35
ASE
Provides in flight stability Some automatic flight control using various inputs Fed into Flight controls using AUX servocylinders Affects pitch, roll, yaw, and BarAlt
36
Utility hydraulic system pressure
3000 psi | Rescue hoist 1250
37
Utility hydraulic system powers
``` Landing gear Blade (1st) and pylon fold Rotor brake Windshield wiper Rescue hoist Haul down Cable reeling machine ```
38
Landing gear up powers what system
Armament system
39
Weight on wheels for what
Landing gear locked in down position
40
Landing gear emergency extension
3000psi air blow down Gauge of pressure on broom closet Emergency release handle: vents hydraulics and gear is lowered by gravity
41
``` Rescue hoist capacity Length Psi Power Shear power ```
``` 600lbs 1250 psi utility hydraulics 100ft usable cable First and last 10 ft red Shear powered by DC essential bus ```
42
Radar blind arc
20°fwd | 10°aft
43
Radar freq
9.375GHz
44
Gain
Varies intensity of displayed video radar returns (clutter)
45
STC
Sensitivity time control. Used to reduce sea clutter -decreases receiver gain for close targets - varies between 0 to 20 nautical miles - reduces effect of gain
46
FTC
Fast time constant. - Allows only leading edge of contact to be displayed - reduces clutter with no effect on gain
47
Radar power req's
28VDC from primary bus 115 VAC from #1 gen 26VAC for heading reference
48
GHARS fail radar limit
15° roll, 10° pitch
49
Radar TX warning
10' rotating | 50' not rotating
50
Doppler feeds
ASE GHARS 123 GVIs
51
OTPI channels
1-16 | 17-31
52
GHARS components
- GRU - Flux valve - CRA-2-2A - EU - CRA-3 - MHIC - Gyro controller
53
-CRA-2-2A
-CRA-2-2A - compass repeater amplifier provides Mag hdgs from flux valve to RMI, CDI, BDHI
54
-Flux valve
-Flux valve-Mag hdg ref, located in tail, 30° pitch/roll movement
55
GRU
Gyro reference unit | Fully gimballed gyro free or slave mode
56
EU
Electronic unit | located in electronics compartment in the nose interface of all GHARS systems and supplies power to the system
57
CRA-3
Compass repeater amplifier Floor between pilots Amplifies true or grid headings from GRU to ASE, ASN 123, Doppler antenna, radar and BDH I S
58
What's the difference between slave and free modes
Slave-flex valve slaves GRU Free-GRU as free directional Gyro Variation is automatically updated to the Flux valve heading Max change of 6°/hr
59
GHARS outputs
TRUE (BRAD) - BDHIs - Radar - ASN 123 - DOPPLER MAG to BDHIs, RMIs, CDI Pitch & roll to Pilots VGI & Radar Hdg ref to ASE yaw channel
60
How accurate is the trimpack GPS
100 m at least
61
If high-level shut off's are not serviceable when do you cease fueling
When either fuel gauge reaches 2000 lbs when fuelling JP-5 or at 1900 lbs when fuelling JP-4
62
What are the NATO equivalents for JP4 and JP5
F 40 and F 44 respectively
63
Accessory drive section drives what systems
Primary utility and auxiliary hydraulic pumps; the high-pressure torque meter oil pump; two AC generators; two MGB lubricating oil pumps; Nr tach generator; and tail Drive shaft take off
64
Tail rotor pitch limit
10° either side
65
Inverter
Three phase 400 Hz 115 V AC inverter located on the left-hand side of eBay Energized by DC power from the DC essential bus Converts it to AC power to the pre-start engine instruments during starting from DC external power or battery power When one or both generators are operating the inverter is automatically shut off
66
HF warnings
Do not transmit when: anyone is on or near the helicopter, the transmission access doors are open, the blades are folded, personnel are seated within 30 cm of the window, or personnel are seated within 60 cm of the HF coupler
67
HF coupler limitation
2.0 -23.0 MHz
68
Typical UHF comms panel set up
ON, OP, Plain
69
ICS ALT modes ALT 1 ALT 2
1- audio and Microphone signals pass through the isolation amplifier 2- audio and microphone signals pass through the microphone amplifier
70
VHF/AM range
116.0-151.975
71
VHF/FM range
150. 0-173.9975 | * 2.5Khz increments
72
How many channels does the VHF/FM Sabre radio provide and what are its main uses
12 preselected channels | Mainly used to provide hoisting and back up LSO communications as required as well as SAR Ops
73
Emergency frequencies
121.5 Mhz VHF/AM Ch 16 VHF/FM 243Mhz UHF 406 MHz UHF
74
What radar control panel settings affect ASP
Gain, STC, tilt
75
What must happen prior to the radar being switched to standby
Number one and two engines running
76
When should the radar be switched to standby
Post landing, hot fuelling, HIFR check, prior to hoisting or slinging
77
Is the ASP certified for navigation
No
78
ASP inflight inputs
``` GPS px info TH from GHARS via radar Radar AIS Camera ``` G TRAC
79
ASP power | CBs?
28VDC direct from primary bus | 3CBs
80
ASP post flight outputs
``` GTI RAG Gold (OTH plot) TH data Images from camera Radar raw data AIS data GPS data ```
81
Doppler outputs
``` GAG A Ho Ground velocity indicator (GVI) ASN 123 GHARS ASE Hover indicator ```
82
Which systems use direction finding
VHF AM and FM, UHF, OTPI
83
What is the hall down sheer limit
6000 PSI + or -500

MH (9 decks)

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