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This is all secondhand info and I've never flown a turbine aircraft but...
Like any turbojet, they are most efficient at altitude. I've heard a 20-series Learjet burns as much at idle at sea level as cruising at at 41,000 ft. Usually they taxi on one engine and do a derated takeoff if possible.
I doubt this plane is RVSM certified so it's going to be stuck under 29,000 ft and from the sound of it you never get into class A airspace (18,000 ft) (no instrument ticket required for training).
They probably bill Jet A at $6.50 a gallon so at 300 gph (that might be a bit high) you're talking $1950 an hour on top of $3000 an hour.
Last edited by Jrboulder; 03-21-2013 at 01:04 PM..
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