“VerdeGo Aero Awarded USD9.7 Million by USAF for Developing VH-4T Hybrid-Electric Powerplant”
U.S‑based VerdeGo Aero has been awarded a USD9.7 million Small Business Innovation Research (SBIR) Phase III contract with the U.S Air Force (USAF), to develop its VH-4T hybrid-electric powerplant into a production-intent configuration, as well as build and test the first prototype VH-4T-415, reports a press release.
The award was issued by the Air Force Life Cycle Management Centre Mobility Directorate (AFLCMC/WLM) in cooperation with AFWERX, the innovation branch of the Department of the Air Force (DAF) and supported by the Air Force Research Laboratory (AFRL).
David Eichstedt, VP of Product Management for VerdeGo Aero, commented, “We have had a strong positive response to the VH-4T for both commercial and military applications.”
The release explains, “Utilising a Pratt and Whitney Canada PW207 helicopter engine, the VH-4T can deliver approximately 400 kW of high-voltage DC electricity to power the electric motors in aircraft like eVTOLs and drones using liquid fuel rather than batteries as the primary energy source.This approach enables electric aircraft to achieve five to ten times more range and endurance than batteries alone can provide.”
Eichstedt added, “This increased range and endurance is crucial to providing military utility to these aircraft.”

The VerdeGo Aero team alongside its various powerplants
Dave Spitzer, VerdeGo’s VP of Product Development, remarked, “The first version of the VH-4T, the 375-kW VH-4T-RD for R&D, was developed around custom-modified COTS equipment to rapidly demonstrate the architecture and to support our customers with powerplants for ground testing of iron birds, copper birds and limited early flight testing. This has proven to be popular.”
He continued, “The production version we’re developing under this Phase III, the 415-kW VH-4T-415, will use bespoke components to deliver capabilities that are important for certification, including multi-channel electrical power output and the ability to deliver full power over a broad voltage range.”
Since being founded in 2017, VerdeGo Aero now leads the field of specialising in advanced hybrid-electric propulsion technologies. The company is based at the Embry-Riddle Aeronautical University Research Park in Daytona Beach, Florida.
Eric Bartsch, CEO of VerdeGo CEO, concluded, “This award is a major milestone for us. The VH-4T is already in demand and the money enables us to advance its capabilities for our present customers and expand its impact across the aviation industry.”
The 22-month Phase III effort builds upon the durability testing work VerdeGo Aero performed under a previous AFWERX Direct to Phase II award using the VH-4T-RD Research & Development powerplant.
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(Top image: VH-4T hybrid-electric powerplant)
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