Assertion: aircraft | /r/HasProperty | designed for the purpose
Facets:
value: specifically
type: MANNER
Source sentences:
text: Vertical take-off and landing (VTOL): Aircraft are specifically designed for the purpose of using very high degrees of thrust vectoring (e.g. if the thrust to weight-force ratio is greater than 1, it can take off vertically), but are usually slower than conventionally propelled aircraft.