The APU
What does APU stand for
Auxiliary Power Unit
How many AC power generators
4
Radio models in the V-22 (radio 1 and 2)
ARC-210
Number of Flight Control Computers
3
Each Engine’s horsepower
6150 Shaft horsepower
Shaft driven horsepower to the MWGB
300
6 DC power busses
DC BUS 1, DC BUS 2, DC BUS 3, Essential Battery Bus, maintenance bus, unstitched battery bus
Type of antenna for Comm 1 (both parts)
Omni directional blade type
Types of actuators on the V-22 (model)
Servo-actuators
FADEC stand for
Full Authority Digital Engine Control
Digital subsystem that performs APU control sequencing, fault detection, and fault isolation for the APU
Electronic Control Unit
What contactor is located in the mid wing PDP?
K20
Frequency band used by SATCOM
UHF (ultra high frequency)
A green stripe in a wiring harness indicates this
The wiring is for FCC #2
The PMA does this
Provides 28vdc backup power in the event of FADEC failure
Provide the ECU with a measurement of exhaust gas temperatures.
Thermocouples
PMG’s are contained in and provide power to….
VFG’s and FCC’s 1/2
Two types of anti-jam communications.
Half-quick and Sincgars
A 5060 tests this…
Swashplate actuator piston seals
The FPMU changes this based on fuel flow rate (Wf)
The compressor variable geometry actuator
Shutdown protections overridden by Emergency Run Engage
Low oil pressure, high oil pressure, high exhaust gas temperature, and high oil temperature.
What dictates when a contactor should click over?
Generator Control Units
Test equipment used to test coaxial cables used for radios?
Time domain reflectometer
What does an LVDT do?
Determines the position of a piston inside an actuator and sends the appropriate electrical signal to the FCC’s.
The FADEC receives this from the FCC’s to increase/decrease engine speed based on TCL positioning.
Power demand signal