Revolutionary Heavy-Fuel Engine For UAS Gets Darpa Boost

Credit: UAV rendering: LiquidPiston
Development of a new type of rotary diesel engine that could provide compact, efficient and reliable heavy-fuel propulsion for smaller UAVs and other applications has been boosted by a $2.5 million Darpa contract to build and test the core of a 30-kW (40-hp) powerplant. Startup LiquidPiston’s X...

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