SolarSailNavigator is a new plugin (ALPHA: you have been warned) to navigate continuous thrust spacecraft with solar sails, ion engines, and similar propulsion systems. The goal of this plugin is to make solar sailing and continuous thrust engines a practical means of travel throughout the KSP solar system. The modules PersistentThrust and ModuleManager are required.
The Module Manager plugin is now required. Download the zip file from the latest release, and unzip into KSP's