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Jet Provost > Description and management of systems > Flashcards

Description and management of systems Flashcards

1
Q

Total fuel capacity

A

281 gallons

2163 lbs

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2
Q

Engine type

A

Viper Mark 202

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3
Q

Engine thrust

A

2450lb static thrust at sea level

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4
Q

Hydraulically operated system

A
  • Landing gear
  • Flaps
  • Speedbrakes
  • Wheelbrakes
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5
Q

DC electrical system generator & batteries

A

27.5V 100amp

2 x 24V, 25 amp batteries, wired in parallel to give total capacity of 54amp hours

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6
Q

AC power system

A

2 inverters (one standby), 110V powered from DC system

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7
Q

Emergency battery and changeover

A

24 V, 7amph

  • Emergency light + Standby UHF switch below the centre panel
  • Other services (T&S indicator, E2B compass lamp, external wheel indicators) operated by guarded T&S emergency switch on main panel
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8
Q

AC Supply - reason

A

Gyroscopic flight instruments

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9
Q

AC Supply - switches and indicators

A

2 instrument switches

  • Start / Off
  • Normal / standby

Indicator:

- Black: normal inverter is providing normal output
- White: normal inverter fails
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10
Q

AC Supply - how to identify inverter failure?

A

Normal inverter failure: indicator white

Standby inverter: red flag in gyro instruments

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11
Q

AC supply (Start / off switch)

A

Isolates the standby inverter, no effect on normal inverter

normal inverter starts automatically when engine starts

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12
Q

How long will batteries last on low load

A

20min

10min if engine has been started on batteries

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13
Q

Fire warning system if both inverters fail

A

inoperable

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14
Q

SWS - Indicators

A

Warning panel (2 x Ox, Ice, Fire)

Flashing attention getters

Firebell

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15
Q

SWS - Buttons

A 
M = Mute
F = Fire extinguisher
T = Test
GT = Ground Test (needed if external power is supplied)
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16
Q

Fuel contents (0.77 sg)

A

Port mainplane group: 700 lbs
Starboard: 700 lbs

Port wing tip: 370 lbs
Starboard: 370 lbs

Total: 2166 lbs

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17
Q

Filling up wing tip tanks

A

Fill to 1 inch below opening (45gal) to avoid fuel entering the air pressure line

18
Q

Fuel pressure gauge and pressurisation

A

Ram air and bleed air

Gauge on port side of cockpit

Normal: 1.5 psi (but fluctuates during manoeuvres)

19
Q

Dual balance valve (purpose)

A

ensure equal fuel flow from both sides

shut of both sides if predetermined level of fuel is reached in collector tank

20
Q

Fuel valves

A

Electric (closed first)

Mechanical

21
Q

Fuel booster pump

A

In collector tank, provides fuel to the LP cock which supplies fuel to the engine

22
Q

Fuel pressure downstream of booster pump

A

9psi, low pressure warning below 3psi

23
Q

LP cock

A

Between collector tank and engine, lever in cockpit also switches on fuel pump

24
Q

Recuperator

A

Feed from collector tank provides 18sec of fuel at 100% during negative g

25
Q

Engine components (fuel)

A
  • High pressure fuel pump
  • Barometric Flow Control Unit (BFCU)
  • Air Fuel Ratio Control Unit (AFRCU)
  • Burners and atomizers
  • Igniter
  • Drain system
26
Q

Accessory Gear Box

A
  • Generator
  • Hydraulic pump
  • Starter motor
27
Q

Oil (quantity)

A

12 pints

28
Q

Oil (temp & pressure)

A

No oil temperature gauge

Pressure gauge in cockpit (max 35 psi)

29
Q

Jet Pipe Temperature Control

A
  • Limits JPT to 730 degrees
  • if hotter, system trims of fuel (thrown overboard) reducing engine rpm by 3-4%
  • If reduction is higher, isolate JPT control
30
Q

Engine starting control

A
  • Ignition switch
  • Starting master
  • Starter push button
31
Q

100% rpm

A

13,800

32
Q

Engine instruments

A
  • RPM gauge
  • JPT gauge
  • Oil pressure gauge
33
Q

Hydraulic system (failure, accumulators)

A

No 1: enough charge to operate airbrakes and flaps once + emergency gear

No 2: wheelbrakes

34
Q

Hydraulic pump

A

engine driven

kicks in at 1200psi, off at 1500psi

failure warning at 300psi

35
Q

Hydraulic pressure (values)

A

1500psi (can be higher if fluid is cold)

900psi for wheel brakes

36
Q

landing gear hydraulic jack

A

All three wheels mechanically connected to one main jack

37
Q

conditions for gear selector up to work

A
  • Wheels off ground
  • nosewheel < 45 degrees off centerline
  • airspeed triggered
38
Q

undercarriage ground lock pins

A

for main wheels only, storage on starboard side of cockpit

39
Q

canopy jettison

A

Fully closed, squeeze handle (aft of centre pedestal) and pull upwards

40
Q

hot air, cold air

A

don’t use together

41
Q

Aircraft safe for parking

A

Safety pins inserted:

  • Seat pan firing handles x2
  • Face screen firing handles x 2
  • Canopy jettison firing unit sear
  • Ejection seats manual separation handle x2
42
Q

Manual separation

A

Squeeze handle, pull up sharply,

pull parachute D-handle on waistband

Jet Provost (6 decks)

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