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Old 27th Apr 2007, 19:55
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Jack Aubrey
 
Join Date: Feb 2004
Location: purple academy
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Sorry PN. You are quite right. But I was enjoying the horseplay.
Further on topic. In fighter manoeuvres in my day - long ago, I know chaps - zero G was good news. If you needed to pick up airspeed ASAP, pushing to zero G meant that only the drag of the aeroplane opposed the thrust. Point of detail- QFIs help? - I believe it was form drag. Lift induced drag was zero(ish).
It had to managed carefully, though, as getting the nose very low with lots of airspeed could be a bit of a problem in the Spey engined F4.
We also used it in a similar profile to the 'vomit comet' to accelerate to M2. Climb in max burner to the trop, pitch angle around 25 degrees, push to 0G and the flight path goes parabolic. It usually needed a couple of such routines to get the magic 2 on the dial and then it was RTB sharpish with not a lot of fuel.
The Lightning, I was assured by a lot of WIWOL pilots, could do M2 a lot easier.
Jumpers as goal posts moment - sorry!
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