Repulsorsail

The Repulsorsail was a unique implementation of repulsor technology developed for ocean-going vessels more than 500 years before the Galactic Civil War. The sails were woven with a network of tiny repulsorlift generators, which turned their anti-gravity fields perpendicular to the field of gravity. This caused pressure on the sails that was similar to the forces of wind, allowing a vessel to move about on the water without natural winds. This kind of technology was used to propel gondola skimmersubs when on the surface of the seas.

Text and facts from the “Repulsorsail” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.