Solar Sails

While by far not as versatile as propellant based or electron-repulsion Impulse Drives, solar sails are frequently used by larger cargo vessels to increase fuel efficiency. 
By spreading large foil wings, vessels gathers solar winds, pushing them away from the systems' sun. While barely effective as sole method of propulsion, it does make a significant difference for larger vessels or for long-range exploration missions outside a planet's Mandala orbit. 
There are only very few private and military vessels use solar sails, best known among them is the Rheingold.
==Other articles about Solar Sails==
Solar Sails
Category:Items
Category:Starship Drives
Category:Technology