Scroll down to read this post.


Please consider supporting my work here at Behind The Black by giving either a one-time contribution or a regular subscription, in any one of the following ways:


1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get.


2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation.

3. A Paypal Donation:

4. A Paypal subscription:

5. Donate by check, payable to Robert Zimmerman and mailed to
Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652

Spinlaunch releases video of its 7th test launch

Capitalism in space: Spinlaunch on April 18th released a video providing what it calls “an inside look” at the company’s procedures during its 7th test launch on March 22, 2022.

I have embedded the video below. Note that on this test launch, the projectile was lifted to only about 30,000 feet, which does not qualify it as a suborbital space flight. Still, the video also indicates that their test projectile not only survived the launch’s extremely high accelerations, reaching a speed of 1,200 miles per hour in mere seconds, but once it hit the ground it was in good enough shape to reuse.

The video also reveals one other interesting fact. Their mission control consisted of only two people, significantly less than the mission control staffs used by the commercial rocket companies, which are themselves significantly less that the mission control teams that NASA has used.


Conscious Choice cover

Now available in hardback and paperback as well as ebook!


From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.


“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of founder of the Mars Society.


All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. The ebook can also be purchased direct from my ebook publisher, ebookit, in which case you don't support the big tech companies and I get a bigger cut much sooner.


Autographed printed copies are also available at discount directly from me (hardback $24.95; paperback $14.95; Shipping cost for either: $5.00). Just email me at zimmerman @ nasw dot org.


  • sippin_bourbon

    Two people really is all that is needed at this point.
    It looks like spin control, and some very basic telemetry. As they gain more complexity, I would expect see more, as the 2nd stage is to have a rocket. Communications will need to be more robust with real payloads. Communications beyond the launch site, such as range control/FAA airspace control integration, etc. Those are not really needed too much at this stage, but I can see them growing, if they can make this work.

    Still trying to figure out the counterbalance issue. I am not sure, but looking at this and other vids, I am wondering if they do not release a liquid counterweight at the same time. It looks like a vent 180 degrees from the release point. Just a guess though.

  • J Fincannon

    I love that company. What a great concept!

    For those interested in the math…

    Sure the gs are high, but still, its good on so many levels.

    And 2 people controlling the whole thing is great!

    And the production values of the clip are great!

    I like the music too!

    Plus the hole in the ground where the rocket hit PLUS they will reuse the rocket they dug out!

    I better get a Pepsi (diet) and cool off from this excitement. Finally some real innovative launch system.

  • David Eastman

    Here is a video from a while back with more details on the concept and excellent footage of their facility and renderings of what the eventual version might look like.

    I wonder if it might be more viable to spin up several “master” projectiles with strong magnets or some other transfer mechanism, and fire them past the “slave” payload in quick succession. That way all you’re spinning up and subjecting to the long duration high g’s is a big magnet, basically, and then the payload carrier takes 4 or 5 lesser jolts in quick succession.

  • t-dub

    There was a lot of debris that came off that thing as it exited the spin launcher. I wonder what all that stuff was. Maybe they are using some kind of sabot in their system but I’m just not sure.

    Sabot: A device that allows a projectile of a smaller caliber to be fired from a weapon of a larger caliber by filling the weapon’s bore and keeping the projectile centered. The sabot normally separates and falls away from the projectile a short distance from the muzzle.

  • John hare

    1,200 mph is about 1,760 fps which is high power pistol velocity. Well under Mach two. To say I don’t believe it scales is an understatement. I can’t remember the exponent for tether scaling. I can remember that it is quite high when velocity gets high compared to material strength.

  • Andi

    I think all that debris was the cover on the top of the spin launcher. Don’t they evacuate the spin chamber? There has to be something between the chamber and the outside atmosphere..

  • William

    Instead of a counterweight maybe two projectiles

  • Concerned

    Like John Hare says, this thing doesn’t feel too scaleable. I think a much more likely approach is the good ole Jules Verne space cannon idea. Project HARP still holds the altitude record at something like 130 km reached in 1966, using basically two 16 in barrels somewhat like on the USS Missouri welded in series. The latest incarnation is currently out at Yuma —see

  • Jeff Wright

    Scott Lowther of takes a rather dim view. Now, I wonder if disk shaped pye wacket deals might be more doable-there are spinning disk submunitions.

Readers: the rules for commenting!


No registration is required. I welcome all opinions, even those that strongly criticize my commentary.


However, name-calling and obscenities will not be tolerated. First time offenders who are new to the site will be warned. Second time offenders or first time offenders who have been here awhile will be suspended for a week. After that, I will ban you. Period.


Note also that first time commenters as well as any comment with more than one link will be placed in moderation for my approval. Be patient, I will get to it.

Leave a Reply

Your email address will not be published.