Troglotech
is this not my whole Point?

you even admit it with your own words !
"Your argument only holds true if you carry on going in the same direction! And that's the whole point, with models like ours we have to constantly change direction (otherwise it disappears into the distance), "

when you have flown in a commercial aircraft do you hear the engines REV up when the pilot turns downwind?
NO you dont !
and in all my hours doing circuits in a tomahawk not once did i ever increase the throttle going downwind or loose height !
i openly admit that if i pulled 3.8 G and did i 180 downwind then any craft would loose hight but that would be true regardless of headwind/tailwind for any plane
Cadetman