Ampaire has developed and is commencing flight testing of an aircraft incorporating a unique, patent-pending parallel hybrid architecture that dramatically reduces fuel burn (up to 75%) as well as noise, heat, vibration, and emissions. This system achieves small turboprop-like levels of takeoff power with hot-high STOL performance and full-engine out capability, but with fuel burn equivalent to a small piston engine in cruise.This platform has all-electric loiter capability and can provide 100s of kW of battery power to onboard systems for short periods, making it it highly suitable as a low-cost in flight testbed and special missions vehicle. Currently this propulsion system is installed on the Cessna 337 6 seat 5000lb MGTOW aircraft, but is scalable to a variety of crewed and uncrewed platforms (both fixed wing and small rotorcraft). The 337 has a military heritage as the O2-B, and militarized 337s are currently used in surveillance role by contractors in support of warfighters.Ampaire has developed its technology for short haul commercial airline purposes with its own funding, but has identified compelling defense applications. Upgrade to a heavy fuel engine is planned. Ampaire is a Techstars Energy Portfolio Company as well as MD5 Real Deal Finalist.Aircraft,Rotorcraft,special mission,dual use,electric,hybrid,High Power,High efficiency