Assertion: ship's engine | /r/CapableOf | blow air
Facets:
value: to increase the air pressure
type: PURPOSE
value: under the front of the craft
type: LOCATION
Source sentences:
text: Shaped like a section of a large aerofoil (this creates a low pressure area above the wing much like an aircraft), the craft was propelled by four aero engines driving two submerged marine propellers, with a fifth engine that blew air under the front of the craft to increase the air pressure under it.