Quote:
Originally Posted by Brian Carlton
In reality, the wings cannot generate any lift with the airplane lacking rotation.
The real issue is the position of the elevators and the CG. If the CG is very close to the main gear, it only takes a bit of downforce on the tail to raise the nose.
If, as was suggested, the horizontal stabilizer was trimmed for nose up, a relatively low level wind (70 mph) could provide sufficient force to lift the nose.
The wings still generate no lift. They are essentially irrelevant in the equation.
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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
