Powerplant and Landing Gear Flashcards
Radar Altimeter can provide AGL altitude information from 20ft to…
2500ft
Nose and main landing gear are retracted and extended by hydraulic actuators which receive fluid under pressure from a__________ located in the _______leading edge
electrically driven pump, left wing
Gear pressure is maintained between _____ and _____ psi.
1550, 2000
An ______ located on the instrument panel illuminates when power is applied to the motor.
amber light
This light will remain on during retraction/extension
The nose actuator has an internal_____that provides a positive downlock for the nose gear.
mechanical lock
Gear is held in the “up” position by ______.
system pressure
Power plant ___ stage Axial flow, __stage centrifugal flow xompressor driven by a single stage reaction turbine
3, 1
Accessory gear drives: LP Pump, HP pump, FCU, Oil Pump, refrigerant compressor, ____generator, and ____ transmitter
starter, tachometer
Power turbine is a __stage reaction turbine; counter rotating with the compressor turbine.
2
Power Turbine drives: _____
reduction gear, prop governor, overspeed governor, prop tachometer, torque transmitter
The Propeller reduction gearbox converts____ speed low torque energy from the power turbines into low speed ____ torque energy to drive the propeller.
high,high
What is the gear ration in the 2 stage planetary reduction gear (33,000-2000rpm)
15:1
ITT Red line ?
750degrees C
Torquemeter 400ft-lbs to __
2230ft-lbs
Red line of Propeller Tachometer
2000rpm
Oil Pressure Min?
60psi
Oil pressure Max?
200psi
Stby Boost pumps 3 functions?
- Serve as backup for engine-driven fuel boost pump
- to pump av-gas when flying above 25,000 ft
- to pump during crossfeed
What is limitation of hours you can use av-gas?
150
RPM indicated as __
N1
N1 must be above___ to energize the compressor for air conditioning. (high idle on ground)
62%
Cabin is heated by engine compressed___
bleed air.
Engine RPM (N1) (percentage of design 100%rpm )
how fast engine is turning
Np (prop RPM)
revolution of actuated propellers
Nitrogen bottle Limitation? (For manuel gear extension)
1000-1500
Should the yaw damper be used for take off and landing?
NO
What disconnects stall warning system when aircraft is on the ground?
squat switch on left main gear
What disconnects stall warning system when aircraft is on the ground?
squat switch on left main gear
What is transducer vane for? And is it heated?
Stall warning, yes
Max ITT for PT6-42?
Max ITT for PT6-41?
755
700
