Assertion: airfoil's surface | /r/HasProperty | convex positive camber
Facets:
value: commonly
type: TEMPORAL
Source sentences:
text: In aeronautics and aeronautical engineering, camber is the asymmetry between the two acting surfaces of an airfoil, with the top surface of a wing (or correspondingly the front surface of a propeller blade) commonly being more convex (positive camber).