Engine System

~5,527 lbs

Closes at 61% +/- 4%

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

2) Decrease in EGT of approx 50^oC

• 1) Hyd Pumps
• 2) DC Generator
• 3) LP Fuel Pump
• 4) HP Fuel Pump
• 5) Engine Oil Pumps
• 6) N₂ RPM Tach-Generator

Fuel px drops below 35psi

FCU schedules fuel flow according to selected throttle position and compensates for changes in altitude and airspeed

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

Sub Idle Fuel Control Unit

Meters a fuel supply to the 18 fuel spray nozzles during the starting cycle

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.

25.2 U.S. Pints

Unusable or trapped: 9.6 Pints

Max Consumtion Rate: 0.8 Pints / Hour

• 1) Volt Regulator
• 2) Over voltage unit
• 3) Under voltage unit
• 4) 300 Amp Fuse

1) Single: Limited to TACAN and Radar Approaches

2) Dual: Limited to Radar Approaches

1) 443 Gallons

2) 2861 Pounds

Normally pressurized to 6 psi

• Change:
• 1) Drop tailhook (down to 4psi)
• 2) Refuel

30 seconds