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Home » United Airlines » United Airlines Backs Startup Promising Fuel-Efficient Supersonic Travel
NewsUnited Airlines

United Airlines Backs Startup Promising Fuel-Efficient Supersonic Travel

Matthew Klint Posted onAugust 20, 2025August 20, 2025 2 Comments

a machine on a stand

United Airlines Ventures, the venture capital arm of United Airlines, is investing in an aerospace startup called Astro Mechanica with the goal of cultivating fuel-efficient supersonic travel.

United Airlines Invests In Astro Mechanica To Advance Fuel-Efficient Supersonic Flight

Astro Mechanica is developing an adaptive propulsion system called Duality that aims to solve one of the biggest hurdles for supersonic passenger travel: fuel efficiency. While the technology will first be applied in military contexts, United hopes its partnership will eventually pave the way for commercial applications.

United’s Investment In Supersonic Innovation

United Airlines Ventures (UAV), launched in 2021, invests in early-stage aviation startups focused on reshaping the future of flight. According to Mukul Hariharan, UAV’s Managing Partner, the investment in Astro Mechanica represents confidence in a technology that could transform high-speed travel:

“Astro Mechanica is developing an adaptive engine concept for strategic military and commercial applications, addressing the challenging yet worthwhile pursuit of supersonic flight. UAV is excited to join Astro Mechanica’s renowned investment partners to support its exceptional management team as they advance their engine technology and progress towards their first aircraft prototype.”

Astro Mechanica’s trademarked Duality engine incorporates a hybrid electric design that can optimize performance across different phases of flight. It is intended to function like a turbofan at takeoff, a turbojet at high subsonic speeds, and a ramjet at very high supersonic speeds, theoretically allowing efficient travel from takeoff to Mach 3 (one can dream…) and beyond.

Transpacific Supersonic Potential

The company claims its design could lead to the first supersonic aircraft with true transpacific range. CEO and founder Ian Brooke welcomed the partnership with United Airlines Ventures:

“This investment reflects strong conviction in Astro Mechanica from an experienced and credible industry leader. We appreciated UAV’s deep technical grasp of our novel high-speed propulsion technologies. We look forward to working with them as an advisor and collaborator as we move into flight testing for the next era of passenger travel.”

UAV has also invested in Boom Supersonic and hopes to inaugurate supersonic travel over the next decade.


> Read More: Concorde 2.0? Boom Supersonic XB-1 Jet Breaks Sound Barrier During California Test Flight


CONCLUSION

United has already committed to Boom Supersonic’s Overture aircraft, and its new investment in Astro Mechanica further highlights its interest in a future where supersonic travel once again becomes commercially viable. Whether Astro Mechanica’s hybrid-electric propulsion design can deliver on efficiency and range remains to be seen and is years away, but the backing of a major airline investor like United makes me hope we might see the return of supersonic travel (this time on a more sustainable basis) in my lifetime.

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About Author

Matthew Klint

Matthew is an avid traveler who calls Los Angeles home. Each year he travels more than 200,000 miles by air and has visited more than 135 countries. Working both in the aviation industry and as a travel consultant, Matthew has been featured in major media outlets around the world and uses his Live and Let's Fly blog to share the latest news in the airline industry, commentary on frequent flyer programs, and detailed reports of his worldwide travel.

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2 Comments

  1. PolishKnight Reply
    August 20, 2025 at 9:58 am

    The moment I read this, I thought to myself that what killed The Concorde wasn’t $10,000/ticket but rather 3 hour waits through check-in and security. Nonetheless, with biometrics and fast liquid/shoes-on screening, we may be on the horizon where everyone may someday be able to go from car to gate in 30 minutes.

    I think there’s a larger issue then with super sonic that we see with our economy at the current time: As credit card parks are being tightened (while corporate profits soar), stagnant wages, and higher populations/demand for cheap travel, such a technology may be the domain of the ultra-rich or perhaps travel enthusiasts such as Matt but not mainstream and THAT is a problem because there’s economy of scale.

    Because in the end, it was the $10,000/ticket that killed the Concorde. If only. a niche set of enthusiasts are on them, there won’t be the infrastructure in place to keep it going. Someone will make money from the IPO and there will be a buzz around it for a decade before the inevitable fall.

    I’m hoping, for our children’s sake, these issues are resolved somehow. We didn’t start the fire, it was always burning since the world was turning…

  2. Alert Reply
    August 20, 2025 at 7:05 pm

    Another excuse for UA to waste it’s money on it’s touch and feel buddies , rather than on decent , livable wages for the FAs .

    UA clearly not interested investing in it’s own employees’ needs .

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