Oh dear, the downwind turn raises its ugly head again.
People have trouble coming to grips with the aircrafts relationship with respect to (a) the ground and (b) the air. Extensive discussion here, but as usual be careful what you take on board from the posts, some poor understanding of both aerodynamics and physics evident, but if you visit the military forum often you will be aware of who to give credance.
http://www.pprune.org/forums/showthread.php?t=275575Well we can but try and educate. Please read the following and note the last paragraph.
http://www.flyingmag.com/article.asp...7&print_page=y