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Old 05-31-2012, 10:09 PM
Brian Carlton Brian Carlton is offline
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Join Date: May 2002
Location: Blue Point, NY
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Quote:
Originally Posted by LarryBible View Post
Hmm... okay, then what generates lift in straight and level flight? Sure, it will generate more lift at a higher angle of attack, but it still generates lift with wings level. Acelerate down the runway and if you build enough speed with the fuselage level, it willl fly off the ground seemingly by itself.

It's just a matter of, is it ENOUGH lift? Also as the weight goes down the stall speed goes down because the wings don't have to overcome as much weight. They are much more lightly loaded.

You know, the old "lift = weight & thrust = drag" in straight and level steady speed flight thing.

Cheers
If you want to generate sufficient lift with the airplane with a perfectly zero pitch attitude, you'd need to have 250 kt. of speed or so.

I suppose the airplane can generate sufficient lift to offset its weight without any rotation. It might be possible at 250 kt. airspeed, but, effectively, that's not likely to happen.

In this situation, you don't need to lift the wings at all. If you simply push down on the tailplane with sufficient force, the nose will lift. The only question that begs is the amount of the force and whether a 70 mph wind can generate it.
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