-1 Flashcards
What are the Major functions of FMU (Fuel Management Unit)
1 Measures fuel quantity
2 Monitors fuel burn
3 Manages fuel system health and isolate component faults
4 Monitors ground/aerial refueling, defueling, and fuel dump
5 communicate system status to GRDP and integrated avionics system
6 communicate fuel quantity to the SFD
7 communicate low engine/gearbox oil levels to the GRDP and maint flight summary
What is FFR?
Feather Flapping Rotor Load Indicator
What assembly provides a circuit path for electrical power to the blade fold systems, blade tip lights, flapping transducers, mast torque sensors, and ice protection distributor
Slipping assembly
What three weights are attached to the yoke used to absorb rotor vibrations
Pendulum Damper Assembly
What Driveshaft connects the PRGB and TAGB through the ICDS?
Pylon Driveshaft
What does the ICDS (Interconnecting Drive Shaft) do?
Synchronizes the proprotor system
How does the FFR work?
Detects the elastomeric bearing temperature to determine if the rotor load is damaging the rotor
What drives VFG 3?
LTAGB
What drives VFG 4
MWGB
What is the primary power for the FCCs?
PMGs
What does ext power power up?
AC buses 1/2, ENV buses 1/2 and the CVs will power the dc buses…
What does ext power not power up?
AC Ice Protection System
In flight, 80% charge provides ____ min emerg pwr for ess equip
20
What does the ENV bus power?
De-ice boots Air cond OBOGS OBIGGS AVI Cooling
What does Nacelle IPS do?
Prevent ice from
Rotors Spinners Pend dampers Air inlets Windshields Pitot tubes AOA sensor Ice prot sensors
What is level one Vortex Ring State?
Increase vibration levels, sluggishness
How do you correct level 1 VRS?
TCL to stop descent or trim NAC fwd @ max rate for 2 seconds (15°) fly out
What is level 2 VRS?
Rumbling/ increased sink rate
Improper roll response
How do you correct level 2 VRS?
NAC fwd @ max rate for 2 secs (15°)
What is level 3 VRS?
Rapid Uncommanded roll corresponding large pitch
How does the Air Data System work?
Air goes through the pitot/static tube to the 3 Air Data Units to get readings for the SFI and FCCs while the FCCs send data to the MCs
What MGT do you abort engine start?
779°
When does the battery time out?
After 5 minutes
What are the 4 major components of the engines?
Torque meter Assembly
Gas Generator Assembly
Power Turbine Assembly
Accessory Drive Assembly