Avalon Router is a navigation planner that computes optimized routes for sail and motor boats.
The Coastal version is free. It is based on the NOAA GFS 0.25 degrees model. It runs on Android 4.x (tablet or phone).
Main Features :
. Routing up to 24 hours . 100 miles around starting point . Charting based on Google Maps . Board Book included . Connection to social networks to share your cruises with friends . More than 300 boat polars available (additional polars on demand) . Polars managed at sailset level . Stopover management . Mixed sailing + engine routing . Security limits based on acceptable wind speed (gust or established) . Flexible starting point (position and time) . Worldwide coverage . Boat efficiency in % (to integrate boat and/or crew capabilities) . Interface to navigation systems via GPX or KML interface