Cruisingfoiler, - "Rolls and tricks aside, would you fly a plane with the wings fixed to the craft upside down? Take off? Land? Not being a pilot I'd imagine one would curse such a plane and say it flies like a brick (so my use was metaphoric). I didn't say they can't fly upside down. Rather they don't as a means of getting from A to B. Boats should fly upside down (sail on port tack) as efficiently as they do right side up (starboard). The point of what I wrote was to explain why the devil sail wings have flaps."
My plane has symmetrical wings.... What is not symmetrical is the angle of incidence, the flaps and aileron hinges. So If I swapped the ailerons and flaps around too there would be no change at all in the wings. If the wings were asymmetrical all it would do is limit my AOA on landing and take off. Asymmetrical wings generate lift at negative angles of attack, so I would have to be very careful landing an upside down asymmetrical wing.
Planes that have asymmetric wings and large camber are generally slower STOL type planes. Most plane wings whether symmetrical or asymmetrical like to go thinner for less drag. The difference between .01 and .04 Cd for an aircraft is huge.
Talador
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Posted by: taladorwood@yahoo.com.au
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