Assertion: hang glider's wing | /r/AtLocation | positive angle of attack
Facets:
Source sentences:
text: Ideally, these two planes would be parallel, having an incidence of 0-0; a negative incidence (when the wings are at a negative angle of attack) leads to the glider taking a nose dive and a positive incidence (when the wings are at a positive angle of attack) leads to the glider flying back to the earth in an inside loop.