Engine System

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Author:
Anonymous
ID:
176216
Filename:
Engine System
Updated:
2012-10-08 10:05:46
Tags:
Engine System
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Description:
Engine System
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  1. Engine Thrust
    ~5,527 lbs
  2. When does the Bleed Valve Close?

    Indications?
    Closes at 61% +/- 4%

    • Indicated by:
    • 1) Increase in N2 IDLE RPM of approx 3%


    2) Decrease in EGT of approx 50oC
  3. What does the engine accessory gearbox drive? (6)
    • 1) Hyd Pumps
    • 2) DC Generator
    • 3) LP Fuel Pump
    • 4) HP Fuel Pump
    • 5) Engine Oil Pumps
    • 6) N2 RPM Tach-Generator
  4. LP PMP Caution Light
    Fuel px drops below 35psi
  5. Fuel Control Unit
    FCU schedules fuel flow according to selected throttle position and compensates for changes in altitude and airspeed
  6. Shot of Fuel Solenoid
    Provides increased fuel flow to reduce acceleration time and improve engine surge control.

    • 1) Open on ground
    • 2) Remains open through 9,500 +/- 300 ft MSL
    • 3) Reopens when descending through 7,700 +/- 500 ft MSL
  7. What is SIFCU?


    What does it do?
    Sub Idle Fuel Control Unit

    Meters a fuel supply to the 18 fuel spray nozzles during the starting cycle
  8. ECA?
    Engine Control Amplifier automatically prevents overspeed and overtemp conditions under normal operations

    When N1 reaches 1000 RPM in correct direction of rotation, signal sent which energizes ignition system and illuminates READY advisory.

    Deenergized and READY extinguished when engine reaches 45% RPM.
  9. Oil Capacity

    Max Consumption Rate
    25.2 U.S. Pints

    Unusable or trapped: 9.6 Pints

    Max Consumtion Rate: 0.8 Pints / Hour
  10. Components that make up Control and Protection of electrical system (4)
    • 1) Volt Regulator
    • 2) Over voltage unit
    • 3) Under voltage unit
    • 4) 300 Amp Fuse
  11. Instrument approaches available for: 

    1) Single Inverter Failure
    2) Dual Inverter Failure
    1) Single: Limited to TACAN and Radar Approaches

    2) Dual: Limited to Radar Approaches
  12. 1) Fuel Capacity

    2) Amount used for Jet Log
    1) 443 Gallons

    2) 2861 Pounds
  13. Fuel Px normally pressurized to what?

    2 Ways to change
    Normally pressurized to 6 psi

    • Change:
    • 1) Drop tailhook (down to 4psi)
    • 2) Refuel
  14. Max time of inverted flight?
    30 seconds

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