Firebrand:So those navy fixed wing guys that land on pitching carrier decks can't fly?
Well, yes, they can, but they don't do crosswind landings and greasers (ultra-smooth landings) very well. :11:
As for heeli-oh-ca-peters, the physics of the problem are well known. A chopper is a large collection of parts moving through the air in loose formation. The true reason that such a device motivates through the atmosphere, (note here that the word "flying" is not mentioned), is that the device is so ugly that Mother Nature just naturally repels it. This phenomenon gives it initial lift. It then proceeds to, with more or less success, club the atmosphere into submission.
In a few cases, it manages to proceed from point "A" to point "B". In other cases the clubs (sometimes called rotors) stop mashing the air molecules, and it assumes a glide angle steeper than that of similarly-sized brick, due to the fact that it is less streamlined than the afore-mentioned brick.
It's simple when one understands the basic concepts and physics of the situation! :cwmddd:
Rob