Q-PROPELLERS Flashcards
What prop RM does the FADEC provide under speed governing to ( ground governing ) ?
660
What is the the maximum in flight propeller RPM ?
1020 RPM
What is the Auto Feather ?
3 seconds for pilot decision to RTO
what is the first propeller over speed protection ?
1060
FADEC tells FMU to reduce fuel to the engine
Condition Lever
How do you manually feather the propeller ?
Pulling the condition lever into start feather or fuel off position
When does FADEC over speed protection occur ?
when prop RPM is approximately 1120
fadec senses the over speed condition reduces the fuel
What happens if the propeller system looses oil ?
it moves towards a safe course pitch 60 degrees
Where does PEC and FAEC get power from
PMA
Alternate Feather
30 seconds
Flight Beta ?
soft fin pitch stop 16.5 deg
hard pitch stop 16.0 deg
ground range is ?
10-12 deg
Limits of RPM in reverse ?
660-950rpm
1500 shp
AUPC si armed ?
power levers above flight idle cond levers above start feather torque above 50% np above 816 rpm both Auto-feather and alternate feather are inactive
it will not arm if torque is below 50%