DA 42 AFM General
Doc. No. 7.01.05-E Rev. 8 15-Dec-2017 Page 1 - 13
Usable Fuel: The quantity of fuel available for flight planning.
Unusable Fuel: The quantity of fuel remaining in the tank which cannot be used for flight.
Useful Load: The difference between take-off mass and empty mass.
(e) Engine
ECU: Engine Control Unit.
FADEC: Full Authority Digital Engine Control.
RPM: Revolutions per minute (rotational speed of the propeller).
Engine starting fuel temperature:
Above this fuel temperature the engine may be started.
Take-off fuel temperature:
Above this fuel temperature take-off power setting is permitted.