 In 2011, 4Frontiers Corporation and Starfighters Inc (a private F-104 operator) began working together on a project to launch suborbital sounding rockets from F-104s flying out of Kennedy Space Center.First launches were expected to occur in 2012.As of 16 July 2017, both the 4Frontiers Corporation and Star Lab suborbital websites were unresponsive, and there appeared to be no mention of 4Frontiers or the joint project on the Starfighters Inc website.