Power Plants Flashcards
Engine
F414-GE-400 low bypass, axial flow, dual-spool turbofan engine of modular construction with afterburner
3 modes of APU
GMM, ECS, MES
IFR
Take fuel while in-flight, forward fuselage
Aircraft fuel storage
Four in internal fuselage tanks, two wing, up to five external
Foam-lined wing tanks
Self-seal holes or damage, decreasing fire and explosion hazards
APU
AMAD
Secondary Power Compressed Air
- gas turbine engine supplying air for ECS operation and MES and GMM through AMADs
- Two gearboxes, mechanically connected to engine by PTS. Pneumatically connected to APU through ATS. AMAD transmits power to engine
- Provides pneumatic power for operating air turbine starter or ECS, provided by APU or engine bleed air
Ignitions
Automatic, intermittent duty, AC powered, capacitor discharge system. Remains energized until rpm is 54% or greater
Lubrication
Dry sump
Main fuel
governs correct main fuel flow IDLE-MIL
Afterburner fuel
Governs correct AB fuel flow from AB start to MAX
VEN
Changes pressure output to provide thrust
Variable Geometry
Fan variable geometry and Compressor Variable Geometry
Anti-Icing
Anti-ice flow to engine front frame center body and inlet device
FADEC
Receives aircraft and engine sensor information and determines appropriate engine scheduling to operate the engine
Throttle
Fly-by-wires system (no mechanical connections) commands and signals sent to and received from FADEC
Refuel/defuel
manifold with a single point ground or in-flight input and outlet in each fuel tank. Door 8
CG
Transferring fuel between tanks to keep aircraft balanced
Hot fuel recirculation
fuel absorbs heat from liquid cooling systems, AMAD oil and hydraulic fluid to keep cool and maintains fuel delivery temp to engine and cools FADEC
Fuel pressurization and vent
Maintain positive pressure on fuel in all tanks and vents fuel vapors overboard
Fuel quantity gauging
Fuel quantity in each tanks
AMAD components
Drive fuel boost/motive fuel pump and electrical generator and 3000/5000 psi hydraulic pump
Safety precautions
Proper PPE maintain 9ft radius from intakes and 25 ft at MIL or MAX
Fueling and defueling precautions
Must not be done within 100 feet of operating radio or radar or 300 ft of ground radar. Must wear goggles and watch gauges for overflow