Assertion: hovercraft's engine | /r/HasProperty | powered
Facets:
value: manually
type: MANNER
value: (hand)
type: OTHER
Source sentences:
text: These earliest engines are called hand tubs because they are manually (hand) powered and the water was supplied by a bucket brigade dumping it into a tub (cistern) where the pump had a permanent intake pipe.
text: Many different engines have been tried over the years, but the main requirement has been to get a good horsepower to weight ratio – the engine must be powerful, but light.