California's Ampaire demonstrates parallel hybrid Cessna 337
"Ampaire has mapped a clear path… to commercial operations in 2021," the company says.
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June 12, 2019 - by flightglobal.com
A Cessna 337 Skymaster powered partly by an electric motor flew on 6 June from a California airport, demonstrating a prototype propulsion system that manufacturer Ampaire hopes to deploy commercially by 2021.
Ampaire replaced the twin-engined 337's rear combustion engine with a "proprietary electric propulsion system" that utilises a lightweight battery system for power.
But the company left the 337's forward engine in place, resulting in a "parallel hybrid" design in which the gas engine and electric motor run concurrently, each providing thrust.
"Ampaire has mapped a clear path… to commercial operations in 2021," the company says...
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