There's been a lot of development activity around flying vehicles recently, but the Air Force wants a shortcut to an unmanned electric vertical takeoff and landing (eVTOL) concept for urban transport.

BLOOMFIELD, Conn., April 04, 2023 (GLOBE NEWSWIRE) -- LiquidPiston, a leading innovator of compact and efficient engine technology and hybrid power systems, today announced the company’s intent to ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

LiquidPiston is to study the application of its rotary diesel engine technology to hybrid-electric propulsion systems for unmanned aircraft and advanced air mobility vehicles under a contract from the ...

A company that makes an innovative rotary internal combustion engine just received a Phase I research grant from the U.S. Army to develop hybrid-electric propulsion for UAVs. The development ...

BLOOMFIELD, Conn., Nov. 01, 2022 (GLOBE NEWSWIRE) -- LiquidPiston, the leading innovator of efficient engine technology and hybrid power systems, announced a $9 million award from the U.S. Army to ...

Development of compact, efficient rotary internal-combustion engines able to run on jet fuel has been boosted by U.S. Army contracts to advance the technology for unmanned-aircraft propulsion and ...