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United Airlines buys 15 Boom Supersonic airplanes

United Airlines today announced that it has signed a deal with Boom Supersonic to buy fifteen of its supersonic Overture airplanes.

Under the terms of the agreement, United will purchase 15 of Boom’s ‘Overture’ airliners, once Overture meets United’s demanding safety, operating and sustainability requirements, with an option for an additional 35 aircraft. The companies will work together on meeting those requirements before delivery. Once operational, Overture is expected to be the first large commercial aircraft to be net-zero carbon from day one, optimized to run on 100% sustainable aviation fuel (SAF). It is slated to roll out in 2025, fly in 2026 and expected to carry passengers by 2029.

Boom has been developing this supersonic passenger plane since 2016, though little progress has appeared to take place during most of the last five years. This contract appears to be the company’s first real sale. It also appears that it makes United a partner in the plane’s development.

Meanwhile, another company, Aerion, is developing its own supersonic passenger jet, in partnership with Boeing and scheduled for launch in 2023.

We shall have to wait to see which company wins the race to begin commercial flights.

Pioneer cover

From the press release: From the moment he is handed a possibility of making the first alien contact, Saunders Maxwell decides he will do it, even if doing so takes him through hell and back.

Unfortunately, that is exactly where that journey takes him.

The vision that Zimmerman paints of vibrant human colonies on the Moon, Mars, the asteroids, and beyond, indomitably fighting the harsh lifeless environment of space to build new societies, captures perfectly the emerging space race we see today.

He also captures in Pioneer the heart of the human spirit, willing to push forward no matter the odds, no matter the cost. It is that spirit that will make the exploration of the heavens possible, forever, into the never-ending future.

Available everywhere for $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from the ebook publisher, ebookit. And if you buy it from ebookit you don't support the big tech companies and I get a bigger cut much sooner.


  • Jeff Wright

    Great news!

    Something to look at besides boring, also-ran twin-jets!

  • Considering sonic footprint was one of the factors in the demise of the SST, not sure ‘Boom’ is a positive PR move.,before%20two%20prototypes%20of%20the%20plane%20were%20completed.

    Sorry, that’s a long URL.

    If the company can build an SST with current environmentally-friendly tech, sign me up!

  • Mike Borgelt

    “though little progress has appeared to take place during most of the last five years.”
    They have rolled out the subscale XB-1 vehicle.
    Mach 2.0 to 2.2 seems to me to be a sweet spot. Sydney – L.A. or return works well considering the time zones if you depart at the right times. Need to do it non stop though.

  • Col Beausabre

    “Mach 2.0 to 2.2 seems to me to be a sweet spot. Sydney – L.A. or return works well considering the time zones if you depart at the right times. Need to do it non stop though.”

    Current low fare is circa $3400, second is $4300, third $4800 all for 15 hour non-stop flights with one carry on and one checked bag, one week round trip. ($9700 for 14 hour flight). The question is, at those prices, how big of a market are we talking about and what premium it is willing to pay to cut that to about 7 or so so hours (1 each subsonic departing and arriving, 5 at Mach 2)?

    We’re not talking about your average tourist, so how much business traffic is there (a woman I once knew was sent by her law firm on two day round trips to London by Concorde – hey, the customer is paying for it, so put it in the billings)(? Can you make a profit on the “carriage trade”?

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