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XPONENTIAL 2017: MartinUAV to Meet NATO’s One Fuel Policy via Hirth

MartinUAV V-BAT UAV Flies with Hirth 4201 EFI Gasoline Engine

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 28 February and demonstrated hover and transitioned to horizontal flight. The engine that MartinUAV integrated and flew in the V-Bat was Hirth’s 15hp 4201 air-cooled 2-stroke boxer engine.

Features of the 183cc 4201 engine include: Advanced closed loop fuel control to optimize performance, CAN bus or RS485 interface for easy communication with the V-Bat flight computer, on-board data storage of engine run parameters allowing post flight analysis, shielded ECU/harness to protect against electromagnetic interferance (EMI), 1kW starter/generator to provide remote start and air vehicle electrical power. It also features automatic altitude and temperature compensation enabling reliable start and operation in a wide operating range. Temperature: -40 to +50 degree C (-40 to +122 degree F). Altitude: 0 – 6000m (0 – 20,000 ft.). The 4201 variant integrated to the V-Bat can also be adapted with a 1:2 reduction drive for fixed wing applications to spin a larger propeller to reduce noise and increase thrust. There is also an optional iPowerTM variant of the 4201 engine that enables spark ignition operation on heavy fuel. This will allow MartinUAV to meet NATO’s one fuel policy, which eliminates gasoline for safety and logistic reasons.

Hirth has been producing engines since 1917 and their reputation for reliable lightweight 2-stroke engines in the sport aviation market has helped expand their UAV business over the years as the global demand for UAV engines increases. Hirth is currently flying on several high end global UAV platforms and has been advancing their engine technology to improve performance and reliability for the UAV market.

We are excited to be working with MartinUAV on their advanced V-Bat UAV solution,Hirth’s CEO, Heinz Waras, stated. “VTOL’s are very popular because of their runway independence and MartinUAV’s transitional solution offers the endurance benefits of a fixed wing and take-off/landing benefits of a helicopter. This eliminates the need for launchers, runways or capture methods. Also, the ducted fan solution keeps operators safe compared to rotary wing solutions. The combination of MartinUAV’s air vehicle benefits and Hirth’s propulsion benefits provide an opportunity for both companies to expand their UAV business.

AUVSI XPONENTIAL 2017 is showcasing the future of innovation across unmanned systems and robotics and www.monch.com brings together key developments from the show. For more information please see MILITARY TECHNOLOGY #5/2017, available at the show; and frequently check back for more NEWS FROM THE FLOOR.

 

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Publish date

05/05/2017

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