Just to be pragmatic, which I'm not normally known for; I’d use a speed slower than Vsuby in the turn and a Vsubx speed in the return. Questions, see the 757 post a couple units down, covers the same problem. Basically VsubY is based on the minimum power required to sustain flight speed, it is a speed higher then lowest point on the speed vs. power curve. Whereas the greatest distance per altitude lose is at around Vsubx, which is the nadir point on the drag curve. It's confusing to me, but so is most everything else.
I realise (sic) this is a predominantly British forum, please excuse my colonial spelling, courtesy of Noah Webster, if I find myself in possession of 150 quid, I will invest in the computer version of the OED.
[edited: italicized items are new because Tinstaafl pointed out my erroneous ways, the max endurance speed will be slower then the max range speed (I suppose that wasn’t clear in the above) keep reading it gets more clear as the posts progress – no really!]
Last edited by '%MAC'; 5th May 2002 at 23:51.