Quote:
Originally posted by novice
"True, he admits, the helicopter is still a work in progress: It only rises about 18 inches off the ground. "We are in the process of a fifth test of moving forward and backward, left and right," Danh said."
Huh? If it can rise 18" why not 18' or 1800' etc. anyone?
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I've seen films of Frank Piasecki and Igor Sikorski testing their designs. That's the way they did it and usually teathered to the ground. You don't want to get up 18' (or more
) only to find out your design is not stable and you can't control it. Helicopter design is 100 times more difficult than fixed wing aircraft. At least for ones that work.