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As I do every July, it is once again time for my annual anniversary fund-raising campaign to support this website and the work I do here.

 

This year I celebrate Behind the Black’s sixteenth anniversary. In those sixteen years I have done more than 35,000 posts (which means I added more than 2,000 in the last year), with my main focus covering the global space industry and the related planetary and astronomical science that comes from it. Along the way I sometimes also post my thoughts on the politics and culture of the time, partly because I think it is important for free Americans to do so, and partly because those politics and culture have a direct impact on the future of our civilization and its on-going efforts to explore and eventually colonized the solar system.

 

You can’t understand one without understanding the other.

 

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FAA eases supersonic flight restrictions over U.S., as per Trump order from 2025

In accordance with an executive order issued by President Trump in 2025, the Federal Aviation Administration (FAA) on June 30, 2026 announced new regulations on supersonic flights over the United States, easing the half-century-old restrictions that prevented such flights.

You can read the proposed regulations here [pdf]. It states the following:

As directed by [Trump’s Executive Order] 14304, FAA proposes to repeal the prohibition on civil supersonic flight in the U.S. contained in 14 CFR § 91.817 by revising the current regulatory text in § 91.817 to provide an interim noise-based operating certification standard. Further, the proposed revision would provide the conditions under which operators may engage in civil supersonic flight without the need for a special flight authorization (SFA) to exceed Mach 1, an operation-specific authorization that does not allow for civil supersonic flight outside of research and testing purposes in isolated test areas.

To enable supersonic flight operations in the U.S., this proposal would require (1) the aircraft be operated such that sonic boom overpressure at the surface does not exceed 0.11 pound per square foot (psf), (2) the Administrator finds that the operator has shown, through measurement, modeling, or other methods, that primary and secondary (direct and indirect) sonic boom overpressure at the surface does not exceed 0.11 psf during operations, and (3) the aircraft be operated in compliance with any conditions and limitations issued by the Administrator.

It is very likely this regulation was informed by the supersonic flight tests conducted by Boom Supersonic in 2025, where its plane broke the sound barrier three times during a flight with no significant sonic booms.

The FAA hopes to get this new regulation finalized by mid-2027.

Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

The print edition can be purchased at Amazon or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

15 comments

15 comments

  • pzatchok

    I always liked a good sonic boom.
    Like fireworks, or gunshots at the firing range.

    Sounds like freedom.

    • Dick Eagleson

      Me too. I grew up near a SAC bomber/interceptor base. F-101s and F-102s were booming in local skies all the time. Nobody raised an eyebrow. Of course nearly every dad in town in those days was a veteran of either WW2 or Korea or both. NIMBY was an unknown concept where military necessity was concerned. Different times.

      • Walking on the seaward beach on Ocracoke Island, NC, I saw a smoke dot on the northern horizon. It got larger. Then I could discern two Phantom II’s (nothing else looks like it) growing visibly larger. They were hauling the mail, at minimum altitude, tracking the surf line. There was a person jogging toward me. The planes weren’t supersonic, but they were crowding the Mach. Not audible until they were on top of you, and the deafening boom was the jogger’s first clue that they were there. He goes flat on the ground, and I could see the crews helmet flashes. Just some Marines from MCAS Cherry Point, having a bit of fun. I bet they tell the same story; albeit from a different perspective.

      • Dick Eagleson

        Shades of The Great Santini.

      • Was in an airliner cabin sometime in the mid-1970s at Lambert Field. We were #1 behind a two-ship of Missouri National Guard F-100s (Huns). They plugged in their burners and took off. Turns out the Huns afterburners have a hard light when plugged in. The pair of booms from the jets as they departed lifted a lot of passengers in the cabin off their seats a bit. The rest of the flight wasn’t nearly as exciting, though it did make me smile. Happy 4th to one and all. Cheers –

  • F

    The planes are supersonic, but the work on the regulations is as slow as molasses.

  • mkent

    ”In accordance with an executive order issued by President Trump in 2024…”

    Say what? By what authority did Trump issue anything in 2024?

  • mkent

    Thanks for correcting that.

    I’ve had Trumpers tell me that Trump, not Biden, was the true president from 2021-2024, and even more that Trump’s tweets carry the force of law. I’m glad to hear that you are not one of them.

  • BillB

    I was 11-12 in 1964 when the FAA along with the USAF did sonic boom tests over Oklahoma City. I remember seeing the contrails some days and being able to set your watch by their occurrence. I was fascinate by it.

    I looked it up and they had over pressures of 1 to 2 PSF which is a lot more than 0.11 PSF. There was some damage, albeit minor, that was caused to buildings including broken windows in some prominent business buildings. A little thump like they are going to permit is less than the house shaking from a good thunderstorm. We should be seeing overland supersonic flight in the near future.

    • COL BEAUSABRE

      If Musk’s Hyperloop works, we’ll have subterranean supersonic travel

      And why not Starloop?

  • COL BEAUSABRE

    BillB

    If Musk’s Hyperloop works, we’ll have subterranean supersonic travel

    And why not Starloop?

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