Discussion
A flying wing has a generous static margin available. True or false?
Answer: C
Correct answer: False, its restoring moment comes only from reflex or washout
A flying wing has no surface on a long moment arm, so its restoring moment must be generated by the wing itself - a reflexed trailing edge, or washout combined with sweep. Both are weak, so the neutral point lies close to the centre of gravity and the usable range of centre of gravity travel is small. Sweep helps, but it does not turn a small margin into a generous one.
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