Assertion: boomerang's wing | /r/MadeOf | two spars
Facets:
value: structurally
type: MANNER
value: with single-sheet webs
type: OTHER
value: with extruding flanges
type: OTHER
Source sentences:
text: Structurally, the wing consisted of two spars with single-sheet webs and extruding flanges, completed with a stressed-skin covering, and featured metal-framed ailerons with fabric coverings along with hydraulically-actuated flaps located between the fuselage and the ailerons.