Thomas Gunn announced the results of sea trials of its new Voyager 4 onboard navigation data management system. The sea trials are the final stage in the development of the new service which will launch on May 1, 2013. The latest version will include global Navarea Warning information and provides a new route-planning tool to make it even easier to identify, update and download information needed for a vessel’s voyage as well as new time saving applications to help vessels navigate more safely and efficiently.