I was at the airshow at Shaw AFB this past weekend (great show) the Thunderbirds were there and during the ground show at both engine precheck and when they were leaving at the end of the day they had trouble getting #4 started. The crew and then a bunch of others would all climb under the wheel bay and crank real hard on something like a speed wrench.
Can you really spin up the compressor enough to jump the engine?? is there a flywheel or impulse clutch??? Or are you pumping up an airstart system???
Can you really spin up the compressor enough to jump the engine?? is there a flywheel or impulse clutch??? Or are you pumping up an airstart system???