Successful Flight of Hirth 4201 EFI Gasoline Engine in MartinUAV V-Bat UAV

Goebler-Hirthmotoren GmbH & Co. KG (Hirth Motors) has been working with MartinUAV on a new propulsion system for their V-BAT transitional vertical take-off and landing (VTOL) to improve operational endurance and to add heavy fuel capability. MartinUAV successfully flew this new gasoline engine on February 28th and demonstrated hover and transitioned to horizontal flight. The ["]