Engine
Wind powers a sailboat.
The purpose of a keel in a sailboat are to generate lift to counteract the force of the wind. The keel converts the motion of the wind into a forward motion for the sailboat.
The wind is what causes a sailboat to sail.
If there is no wind and the sailboat has no auxiliary engine
Collects wind, it is a triangular sail placed at the front of the sailboat.
Sailboat?
A sailboat
A sailboat
Wind.
anyone with a sailboat
the wind helps the sailboat go
A sailboat.