Assertion: auxiliary device | /r/CapableOf | steer the craft
Facets:
value: in the direction of the compass
type: LOCATION
value: mechanically
type: MANNER
Source sentences:
text: Carthoris' improvement upon this consisted of an auxiliary device which steered the craft mechanically in the direction of the compass, and upon arrival directly over the point for which the compass was set, brought the craft to a standstill and lowered it, also automatically, to the ground.