Assertion: hovercraft | /r/HasAspect | one engine
Facets:
Source sentences:
text: Some hovercraft have separate engines for lift and thrust, but as smaller hovercraft are weight sensitive, they tend to have one engine that generates air that is split 75/25% with 25% directed under the skirts for lift, and 75% of the air directed via rudders for thrust and left to right steering.
text: Some hovercraft have two engines with two sets of controls for lifting and thrust – the single engine design splits air reducing the need for two engines, to save weight and simplify operation.