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Ja, från FAA-handboken
...be operated from its crossfeed position during the run-up. The
engines should be checked individually and allowed to run at moderate
power (1,500 rpm minimum) for at least 1 minute to ensure that fuel
flow can be established from the crossfeed source. Upon completion of
the check, each engine should be operated for at least 1 minute at
moderate power from the main (takeoff) fuel tanks to reconfirm fuel
flow prior to takeoff.
Och även
Some multiengine airplanes have a ramp weight, which is in excess of
the maximum takeoff weight. The ramp weight is an allowance for fuel
that would be burned during taxi and run-up, permitting a takeoff at
full maximum takeoff weight.
För det som är värt ett flermotorigt kolvplan är det dubbelt så dubbelt det enda motorplanet, och det bär ofta en liknande om inte samma motor som en singel. De saker du checkar in i uppstart, gäller i första hand tändsystemet för både singel- och flermotoriga flygplan.