Assertion: spar | /r/HasProperty | raised into the air-flow
Facets:
value: to eliminate
type: PURPOSE
Source sentences:
text: Spoilers Spoilers are movable control surfaces in the top of the wing, usually located mid-chord or near the spar which are raised into the air-flow to eliminate (spoil) the lift from the wing area behind the spoiler, disrupting the spanwise distribution of lift and increasing lift-induced drag.