TR
[quote]What intrigues me is the amount of air that goes into the engine - a cylinder bounded by the diameter of the inlet and equal in length to the forward movement of the aircraft.<hr></blockquote>
Does not have to be like that. With high peformance military jets slamming the throttle shut at high IAS causes a lot of spillage and associated buffet and intake banging type noises.
No big deal though. Only just a nitpick.
Mind you the spillage could destabise some older designs. On one of my early flights in the FD2 I slammed the throttle shut at about 1.6 and the nose got a big wiggle on left right as the air went in one trouser leg and out the other as it were with the bifurcated intake. Big sideways. When I got back and complained the Rolls guy told me "Everybody knows you must not close the throttle at high speed in the Fred, you were lucky the fin did not come off." I pointed out that everybody did not know .........or I would not have done it.
[ 26 January 2002: Message edited by: John Farley ]</p>