Assertion: supersonic airfoil | /r/HasAspect | thin section
Facets:
value: with sharp leading
type: OTHER
value: with trailing
type: OTHER
value: generally
type: MANNER
Source sentences:
text: Supersonic airfoils generally have a thin section formed of either angled planes or opposed arcs (called "double wedge airfoils" and "biconvex airfoils" respectively), with very sharp leading and trailing edges.