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NASA managers scrub September 27th SLS launch

NASA managers today decided that they had to scrub their attempt to launch SLS on September 27, 2022 due to a hurricane threatening Florida, and are instead preparing to roll the rocket back to the assembly building to protect it.

During a meeting Saturday morning, teams decided to stand down on preparing for the Tuesday launch date to allow them to configure systems for rolling back the Space Launch System rocket and Orion spacecraft to the Vehicle Assembly Building. Engineers deferred a final decision about the roll to Sunday, Sept. 25, to allow for additional data gathering and analysis. If Artemis I managers elect to roll back, it would begin late Sunday night or early Monday morning.

This will likely delay the launch until the late October launch window, or the mid-November window, as shown in this graph [pdf]. During this time engineers will certainly test and recharge the batteries that run the rocket’s flight termination system so that there will be no question they will work should the Space Force safety range officer need to destroy the rocket during launch.

NASA however now faces another quandary it has been avoiding for the past year. The stacking of the five segments of SLS’s two solid rocket strap-on boosters began in November 2020, two years ago. During the shuttle era and until last year, NASA had a rule that said a booster must launch within a year of stacking. The fear was that the weight of the solid rocket fuel could distort it over time, and possibly cause it to burn improperly once ignited. As these boosters are the equivalent of firecrackers — once you light them you can’t turn them off — NASA had chosen, until last year, to have a use-by date of one year for the boosters.

Now however NASA has abandoned that rule. The boosters have been stacked for twice that time, and the agency has to ask if it will be safe to use them. To change them out however will take at least three months, if not longer. The present set of boosters would have to be removed, and a new set stacked and installed.

I fully expect NASA to stay with these boosters, despite their age, once again violating its own safety rules, as it did routinely during the shuttle era (resulting in the loss of two shuttles and the death of fourteen astronauts). Though no humans will be on this test flight, this sloppy engineering culture clearly threatens the lives of the astronauts who will fly on the second Artemis SLS mission, around the Moon.

Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

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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.

 

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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.

8 comments

  • Col Beausabre

    IF there is a second Artemis mission. All Praise to Chaac, for sending one of his storms when and where it would do the most good! So the race between SLS and Superheavy gets even closer. Be interesting to see what the Feds dream up to throw in SpaceX’s way.

  • Jhon B

    Damn, I know they had it this time and it would have launched with no issues…..NOT! Great for them to save face. But they will have to launch this sometime.. Hemm, maybe it will “Accidently” fall over in the move.

  • Robert Weinmann

    If I’m not mistaken, the SRBs for the SLS rocket were extended one additional segment to get more (longer?) thrust out of them.
    Wouldn’t this extra length increase the amount of settling that might occur? Making it even more risky to violate the one year rule?

  • Mitch S.

    At this point I’m worried that this firs flight will succeed and NASA’s luck will run out on a subsequent flight with people on board.

    A good time to re-read Dr.. Feynman’s report of his time on the Rogers Commission:

    https://calteches.library.caltech.edu/3570/1/Feynman.pdf

    It seems every generation has to relearn the hard won knowledge of the previous generation.

  • LTC SDS

    I thought they were teaching the dangers of Go Fever? At $4B a launch, every two years, can they afford even one screw up? It’s most likely a dead rocket walking anyway. But do they want to go out on a disaster? Maybe…

  • GaryMike

    I think they are thanking the approaching hurricane for making them look judicious rather than incompetent.

    Apparently, the Universe doesn’t play favorites.

  • john hare

    The projected storm track seems to be shifting west. Likely by tonight the cape will be out of the cone. Rain but not hurricane winds.

  • Jeff Wright

    A Gulf hit…phooey

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