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Former NASA and Uber Engineers Work to Quiet S/VTOL Aircraft

Former NASA and Uber Engineers Advance Quieter S/VTOL Aircraft Amid Industry Challenges
Whisper Aero, a pioneering developer of ultraquiet aviation propulsion systems, has introduced a novel technology designed to enable runway-independent operations for a broad spectrum of aircraft, ranging from electric air taxis to military transport platforms. The company’s JetFoil propulsion system, which integrates ducted electric engines along the leading edge of a wing, was unveiled at SAE International’s AeroTech 2026 event in Florida. Whisper asserts that the JetFoil can achieve takeoffs with as little as 50 feet of ground roll, requiring less than half the thrust of conventional VTOL designs that depend on tilting propulsors. This represents a significant advancement for electric vertical takeoff and landing (eVTOL) air taxi concepts.
The announcement coincided with Whisper CEO Mark Moore receiving the 2026 F.E. Newbold S/VTOL Award. Moore, a veteran with three decades at NASA and former engineering director for Uber’s Elevate program, joins an esteemed group of recipients recognized for transformative contributions to vertical flight, including engineers behind the SpaceX Falcon rocket, V-22 Osprey, AV-8A Harrier, and F-35 Lightning II. Whisper’s chief operating and product officer, Ian Villa, also brings extensive experience from Uber Elevate and Joby Aviation, where he led product strategy for eVTOL air taxis.
Innovative Propulsion and Strategic Partnerships
The JetFoil system is powered by Whisper’s proprietary eQ engine series, capable of supporting aircraft as large as Group 3 drones, which weigh up to 1,320 pounds and reach speeds of 250 knots. Unlike traditional airfoils, the JetFoil distributes ducted fan engines along the entire leading edge of the wing, enabling near-vertical takeoff without the need for tilting propulsors or separate lift systems, such as those employed by the F-35B. This design simplifies aircraft architecture while enhancing operational flexibility.
Whisper is actively engaging with government agencies to develop and test JetFoil-equipped prototypes. The company does not intend to manufacture complete aircraft but has released concept designs to demonstrate integration possibilities. Its strategy focuses on collaborating with military partners to validate the technology before transitioning successful prototypes to commercial manufacturers for wider adoption. Early customers are predominantly within the defense sector, but Whisper envisions future applications in urban and regional air mobility. The company maintains ongoing contracts with the U.S. Air Force, Navy, and NASA to validate JetFoil in flight, including a partnership with the Air Force to develop two collaborative logistics aircraft prototypes, with flight testing scheduled for 2027. The system is designed for both new aircraft and retrofits, such as replacing the de Havilland Twin Otter’s high wing with a JetFoil and hybrid-electric powertrain.
Market and Regulatory Challenges
Despite these technical advancements, the path to market for quiet S/VTOL aircraft remains fraught with complexity. Regulatory hurdles continue to pose significant challenges, exemplified by Archer Aviation’s participation in the White House’s eVTOL Integration Pilot Program, which has encountered legal disputes and delays. Investor confidence across the sector has waned as certification timelines extend, and while competitors like Joby Aviation have achieved successful flights and FAA approvals, others struggle to maintain momentum. Financial pressures and management difficulties are also apparent, underscored by Uber’s rapid expenditure on artificial intelligence projects and the broader volatility within the advanced air mobility industry.
As Whisper Aero advances its JetFoil system, the company and its leadership—drawing on deep expertise from NASA and Uber—confront not only technical innovation but also regulatory and market challenges that will influence the future trajectory of quiet, efficient S/VTOL flight.

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