Powerplants Flashcards
EAWS
Safe distance from the intake at idle power
9 feet
Safe distance from the intake at military power
25 feet
Safe distance range for engine exhaust
115 feet @ idle
925 feet @ max
What engine is used in the F/A-18 A-D
F404-GE-400 or F404-GE-402
Engine type used is F/A-18 E/F
F414-GE-400
Whats APU
Auxiliary Power Unit
3 modes of APU operation
GMM, MES, ECS
ground maintenance mode, main engine start, environmental control system
Purpose and location of the IFR Probe
allows a/c to take fuel from from tanker and is located on the right forward fuselage
Foam Lined Wing Tanks
self-seal holes/damage, decreasing fire and explosion hazards
Types of oil authorized for A-D and E-F
MIL-PRF-2369-9 / 10-10 Preservation Oil
Engine Anti Icing System
provide anti-ice airflow to engine front frame, inlet center body and inlet device; presents build-up of ice air inlet hardware - pilot
Fuel Capacity of F/A-18 A-D or E-F
10,200lbs-30,000lbs A-D ; 5 external fuel tanks E-F
APU what it is and what it does
centrifugal flow gas turbine engine supplying air for ECS MES and GMM through AMAD
AMAD what it is and what it does
Airframe Mounted Accessory Drive ; connected to the APU through ATS (Air Turbine Starters)
Discuss VEN
Variable Exhaust Nozzle ; provides thrust and fuel efficiencies while maintaining exhaust gas temperature
How many fuel cells in the F/A-18 A-D or E-F
4 fuel cells
What is FADEC and its purpose
Full Authority Digital Engine Control ; receives sensor information and determines engine scheduling to operate in all areas of the flight envelope
System interface between APU, AMAD and Engines
AMAD is connected to APU then AMAD transits power to the engines for start
Fuel Pressurization and Vent
maintains pressure on the fuel in all tanks and vents fuel vapors overboard
Hot Fuel Recirculation
fuel separates from motive fuel flow at heat exchanger wash fluids
Purpose of Air Refueling Store
provides in flight refueling tanker capabilities, when properly installed the A/C becomes a tanker/capable of transferring fuel into receivers during flight