APR

APR
Auxiliary Power Reserve
APRON
A defined area on an airport or heliport intended to accommodate aircraft for purposes of loading or unloading passengers or cargo, refueling, parking...

APR - Auxiliary Power Reserve
APU - Auxiliary power unit
ARINC - Aeronautical Radio, Inc.

Power levers can override the CTOT system and add additional fuel, the CTOT system will come on when the power levers are above the 60 degree switch and the CTOT switch is on; Switch position: OFF, ON, APR (Automatic Power Reserve) ...

See also: Power, Maintain, Pilot, Navigation, Air traffic