Scroll down to read this post.

 

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. from any other book seller, or direct from my ebook publisher, ebookit. 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


Blue Origin pinpoints problem with BE-4 engine

Capitalism in space: According to ULA’s CEO Tory Bruno, Blue Origin has identified and fixed the issue with the turbopumps of its new BE-4 rocket engine.

United Launch Alliance Chief Executive Tory Bruno said Friday that the problem was “sorted out,” and that the full-scale, flight-configured BE-4 engine is now accumulating a lot of time on the test stand. Bruno made his comments about one hour into The Space Show with David Livingston.

Bruno’s company, ULA, is buying the BE-4 engine to provide thrust for the first stage of its upcoming Vulcan-Centaur rocket. This booster may make its debut next year, although ULA is still awaiting delivery of BE-4s for the first flight. Two of these large engines—each providing about 25-percent more thrust than the RS-25s used on the Space Shuttle—will power each Vulcan rocket.

Here’s what I think happened: Blue Origin struggled to fix the problem for several years. ULA, suspecting problems, got increasingly impatient at the lack of delivery of an operational engine, and threatened to dump the BE-4 in favor of Aerojet Rocketdyne’s engine unless it was given a test engine to analyze. Blue Origin finally complied in July, and very quickly ULA pinpointed the problem and the solution.

While this is good news for the development of both ULA’s Vulcan and Blue Origin’s New Glenn rockets, it does not speak well for the development team at Blue Origin. Nonetheless, the engine is always the big hurdle for designing a rocket, and that hurdle has now been passed.

During Bruno’s interview he also said that ULA still intends to recover and reuse these engines when it flies its Vulcan rocket, but gave no timeline for when that might happen. Initially, and probably for several years at least, expect those engines to be expendable and tossed into the ocean with each flight.

Readers!

 

Please consider supporting my work here at Behind the Black. Your support allows me the freedom and ability to analyze objectively the ongoing renaissance in space, as well as the cultural changes -- for good or ill -- that are happening across America. Fourteen years ago I wrote that SLS and Orion were a bad ideas, a waste of money, would be years behind schedule, and better replaced by commercial private enterprise. Only now does it appear that Washington might finally recognize this reality.

 

In 2020 when the world panicked over COVID I wrote that the panic was unnecessary, that the virus was apparently simply a variation of the flu, that masks were not simply pointless but if worn incorrectly were a health threat, that the lockdowns were a disaster and did nothing to stop the spread of COVID. Only in the past year have some of our so-called experts in the health field have begun to recognize these facts.

 

Your help allows me to do this kind of intelligent analysis. I take no advertising or sponsors, so my reporting isn't influenced by donations by established space or drug companies. Instead, I rely entirely on donations and subscriptions from my readers, which gives me the freedom to write what I think, unencumbered by outside influences.

 

You can support me either by giving a one-time contribution or a regular subscription. There are four ways of doing so:

 

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 or subscription:

 

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

 

You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage or shown in the menu above.

4 comments

  • Pat Myers

    If this BE-4 engine is supposed to be even more powerful that the RS-25, I can understand where the turbopumps may cause a bit of a problem. Many years ago, back in the late 1970s, the wife and I were standing in line to see the then just-released James Bond film “Moonraker”, which as some of you may recall, had as a plot element the then yet-to-be-flown Space Shuttle.

    It turned out there were two guys in line behind us, that I got to chatting with. And lo and behold, they were Pratt & Whitney engineers, who were at that time working on the turbopump system for the RS-25 engine, better know as the Space Shuttle Main Engine.

    As they described it, they were having a heck of a time getting those turbopumps to work, without blowing up, that is. They said these were devices about the size of small trash cans, yet they had to spin at about 35,000 RPM, pumping cryogenic fuel and oxidizer into the RS-25 in prodigious quantities.

    However, as we now know, those engineers were successful in solving the problems with the RS-25 turbopumps. Indeed, the RS-25 turned out to be an eminently reliable engine, as rocket engines go. But it clearly took some serious engineering skull sweat to make it so. No doubt the BE-4 will be no different.

  • Edward

    Pat Myers,
    That must have been a fun discussion with those guys.

    The RS-25, in a volume about twice the size of your torso, generates the equivalent power as something like five or ten one-gigawatt power plants (I have forgotten the correct number). That much power in such a small volume and the relatively tiny turbo pump to support it are why rocket science is so impressive.

  • Pat Myers

    Edward.

    It was indeed a fun discussion, and I considered myself most fortunate to have encountered those guys.

  • sippin_bourbon

    I wonder if they had help from the ULA engineers figuring it out.
    Either way, that is between ULA and BO.

    I am glad they figured it out.

    While they have a very different pace, I am looking forward to seeing New Glenn fly.

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. Required fields are marked *