Airplanes deploy revers thrusters when landing which are basically just shaped metal shields that move into place behind the engines to provide reverse thrust and slow the plane.
But adding a fan on a sailboat is seen as stupid and doesn’t work.
Airplanes deploy revers thrusters when landing which are basically just shaped metal shields that move into place behind the engines to provide reverse thrust and slow the plane.
But adding a fan on a sailboat is seen as stupid and doesn’t work.
A sail boat isn’t really pushed by the wind. The sail acts more like a wing and the difference in air pressure going around it is what actually moves the boat.
It depends on the actual situation or maneuver during sailing. It’s a mix between the wing effect and the ancient principle “wind from behind is pushing the boat forward”.