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SpaceX wins single source contract for NASA's crewed lunar lander

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Jeff Findley

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Apr 16, 2021, 5:05:39 PM4/16/21
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SpaceX wins single source contract for NASA's crewed lunar lander!

This is really going to piss off a lot of other companies. And by
extension, a lot of lobbyists and congress-critters.

Jeff

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Sylvia Else

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Apr 16, 2021, 9:10:30 PM4/16/21
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On 17-Apr-21 7:05 am, Jeff Findley wrote:
>
> SpaceX wins single source contract for NASA's crewed lunar lander!
>
> This is really going to piss off a lot of other companies. And by
> extension, a lot of lobbyists and congress-critters.
>
> Jeff
>

Well, who'd want to bet against SpaceX getting the job done?

NASA has seen how easily its money can disappear into a black hole. SLS
has been nothing but a money-pit, and Starliner still hasn't carried an
Astronaut.

This might encourage other companies to be more focussed on building
working space hardware, and less on an a drip-feed of NASA cash.

Sylvia.

Jeff Findley

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Apr 17, 2021, 7:52:12 AM4/17/21
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In article <iduqs4...@mid.individual.net>, syl...@email.invalid
says...
Indeed. SpaceX's low bid was a huge factor in winning this contract.
Given the limited proposed increase in NASA's budget (from the Biden
Administration), NASA could not ignore the low price of SpaceX's bid.

https://arstechnica.com/science/2021/04/nasa-selects-spacex-as-its-sole-
provider-for-a-lunar-lander/

Alain Torbjorn Lindgren

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Apr 17, 2021, 2:04:00 PM4/17/21
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Jeff Findley <jfin...@cinci.nospam.rr.com> wrote in news:MPG.3ae495f37...@news.eternal-september.org:


> Indeed. SpaceX's low bid was a huge factor in winning this contract.
> Given the limited proposed increase in NASA's budget (from the Biden
> Administration), NASA could not ignore the low price of SpaceX's bid.
>
> https://arstechnica.com/science/2021/04/nasa-selects-spacex-as-its-sole-provider-for-a-lunar-lander/
>
> Jeff



Have you ever stuck a toy SpaceX rocket up your butt?

I like pushing in a Falcon-9, but when I want to shove up a
Dragon I need to take a shit first.

JF Mezei

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Apr 17, 2021, 6:45:31 PM4/17/21
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On 2021-04-17 07:52, Jeff Findley wrote:
> https://arstechnica.com/science/2021/04/nasa-selects-spacex-as-its-sole-
> provider-for-a-lunar-lander/

Has the interior cabin design been made publc? curious about the 2
airlocks and why they are needed.

Also, Since the thing lands on new engines mounted on the sides, how
close would it be to do away with raptors and just have the landing
engines for both landing and Earth-Mooth initial transit?

Is trans-lunar not even close to be done by those engines, or within
realm of the possible?


Also, curious to see how the "iterative development" will be affected
since there might now be a priority in developping the Lunar lander,
decked out cabin on top etc.


I take it that landing with the new side mounted engines is not even
close to be possibeo on Earth? how will they test them?

Jeff Findley

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Apr 18, 2021, 7:26:16 AM4/18/21
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In article <byJeI.37703$N_4....@fx36.iad>,
jfmezei...@vaxination.ca says...
>
> On 2021-04-17 07:52, Jeff Findley wrote:
> > https://arstechnica.com/science/2021/04/nasa-selects-spacex-as-its-sole-
> > provider-for-a-lunar-lander/
>
> Has the interior cabin design been made publc?

No.

> curious about the 2
> airlocks and why they are needed.

SpaceX likely thought that was a feature that NASA would view favorably.
It provides redundancy in an area that is critical. Lunar dust may
interfere with the operation of the airlocks, so having a backup makes
sense. The other two proposals were only big enough for one airlock.

> Also, Since the thing lands on new engines mounted on the sides, how
> close would it be to do away with raptors and just have the landing
> engines for both landing and Earth-Mooth initial transit?

Lunar Starship still need Raptors to get into earth orbit and to perform
the TLI burn.

> Is trans-lunar not even close to be done by those engines, or within
> realm of the possible?

Likely possible, but surely inefficient due to cosine losses. The
engines aren't pointed vertical, they're canted off to the sides to
prevent impingement on Starship and to minimize the amount of lunar dust
that's kicked up.

Raptors are still needed for the TLI burn.

> Also, curious to see how the "iterative development" will be affected
> since there might now be a priority in developping the Lunar lander,
> decked out cabin on top etc.

Lunar Starship development is just a variant of the Starship that SpaceX
is currently developing on its own dime. Getting NASA to pay for lunar
Starship development is a good thing for SpaceX as some of the unique
features on it would likely apply to a Mars landing Starship.

> I take it that landing with the new side mounted engines is not even
> close to be possibeo on Earth? how will they test them?

No. Earth has 6x the gravity of the moon.

JF Mezei

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Apr 18, 2021, 8:36:57 PM4/18/21
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On 2021-04-18 07:26, Jeff Findley wrote:

> Lunar Starship still need Raptors to get into earth orbit and to perform
> the TLI burn.
> Likely possible, but surely inefficient due to cosine losses.


Since it would this only once, and never need raptors again in its
Gateway-Moon trips, is this inefficiency for that once in a lifetime
worth not having to haul the raptors and refocus the tanks on those new
side thursters?

On the other hand, once SLS is killed, SpaceX can turn Lunar Starship
into both the lunar lander as well as the Earth-Moon flight at which
point you need the raptors to land back on Earth. (and with tiles etc).

The possibility of being able to replace SLS for Earth-Moon transit is
likely why SpaceX won over the other more specialized solutions.


> Lunar Starship development is just a variant of the Starship that SpaceX
> is currently developing on its own dime.

But the lunar mission doesn't require landing on earth. It requires real
landing legs to land on uneven terrain. Totally different engines for
landing on moon. So there are diverging priorities from the current
Starship development.

Will be interestng to see how far the current iterative tests go before
we start to *see* lunar models being tested. I get the feeling that the
lunar model isn't getting "iterative design" and they'll do more
conventional engineering and design to work instead of test until it
works. For one thing, if they can't simulate moon landing, they can't
really do iterative design.

Big question is whether the lunar landing legs will be same or very
similar to the ones for landing on Earth, or totally different. (lunar
legs don't worry about re-entry so could be attached to the outside so
they can have greater span for stability when landing.

Jeff Findley

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Apr 21, 2021, 11:29:43 AM4/21/21
to
In article <Hg4fI.6237$0g3....@fx06.iad>, jfmezei...@vaxination.ca
says...
>
> On 2021-04-18 07:26, Jeff Findley wrote:
>
> > Lunar Starship still need Raptors to get into earth orbit and to perform
> > the TLI burn.
> > Likely possible, but surely inefficient due to cosine losses.
>
>
> Since it would this only once, and never need raptors again in its
> Gateway-Moon trips, is this inefficiency for that once in a lifetime
> worth not having to haul the raptors and refocus the tanks on those new
> side thursters?

Almost certainly, otherwise SpaceX wouldn't do it. And SpaceX does
propose reusing lunar Starship by refueling it in high lunar orbit.
Cite:

MAY 01, 2020 - NASA SELECTS LUNAR OPTIMIZED STARSHIP
https://www.spacex.com/updates/nasa-selects-lunar-optimized-starship/

From above:

A lunar optimized Starship can fly many times between the surface
of the Moon and lunar orbit without flaps or heat shielding
required for Earth return.

> On the other hand, once SLS is killed, SpaceX can turn Lunar Starship
> into both the lunar lander as well as the Earth-Moon flight at which
> point you need the raptors to land back on Earth. (and with tiles etc).
>
> The possibility of being able to replace SLS for Earth-Moon transit is
> likely why SpaceX won over the other more specialized solutions.

That's not correct. There have been articles published talking about
the selection.

The other two had serious problems with their proposals. Blue Origin's
proposal was disqualified because they essentially asked for payments
before reaching milestones (not allowed). Dynetics changed their design
to eliminate the drop tanks on their lander which caused it to be
overweight so that the design didn't close.

Also, the SpaceX proposal was the only one that fit the paltry HLS
funding that NASA is currently getting from Congress.

> > Lunar Starship development is just a variant of the Starship that SpaceX
> > is currently developing on its own dime.
>
> But the lunar mission doesn't require landing on earth. It requires real
> landing legs to land on uneven terrain. Totally different engines for
> landing on moon.

A lunar landing Starship doesn't require it. But it will never get to
high lunar orbit without being refueled. And the tanker Starships need
to land on earth so they can be refilled and launched again. So the
program does require full reuse of both tanker Starship and Super
Booster.

> So there are diverging priorities from the current
> Starship development.

Disagree. Starship is more than just lunar landing Starship. You need
a tanker Starship to actually fly lunar landing missions, so earth
landing is still the #1 priority of Starship development.

> Will be interestng to see how far the current iterative tests go before
> we start to *see* lunar models being tested. I get the feeling that the
> lunar model isn't getting "iterative design" and they'll do more
> conventional engineering and design to work instead of test until it
> works. For one thing, if they can't simulate moon landing, they can't
> really do iterative design.

They can test all the components on earth and then fly an uncrewed lunar
landing test, which is in the NASA contract. Next they would fly a
crewed lunar landing test, which is also in the NASA contract.

Vertical landing of lunar landing Starship isn't a big unknown. Many
different vehicles have landed on the moon.

> Big question is whether the lunar landing legs will be same or very
> similar to the ones for landing on Earth, or totally different. (lunar
> legs don't worry about re-entry so could be attached to the outside so
> they can have greater span for stability when landing.

See the renderings on the SpaceX website.

Niklas Holsti

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Apr 21, 2021, 12:17:35 PM4/21/21
to
On 2021-04-21 18:29, Jeff Findley wrote:
> In article <Hg4fI.6237$0g3....@fx06.iad>, jfmezei...@vaxination.ca
> says...
>
>> ...
>> The possibility of being able to replace SLS for Earth-Moon transit
>> is likely why SpaceX won over the other more specialized
>> solutions.
>
> That's not correct. There have been articles published talking about
> the selection.
>
> The other two had serious problems with their proposals.

Yes.


> Blue Origin's proposal was disqualified because they essentially
> asked for payments before reaching milestones (not allowed).

Not really. That problem with the National Team proposal was noted, but
there is a foot-note in the source-selection statement that says that it
was not a fatal flaw, because it could have been negotiated away. There
were some technical problems and low TRLs for some of the propulsion
parts, IIRC. And no clear path to sustainable or commercial operation (a
major redesign was proposed for that).


> Also, the SpaceX proposal was the only one that fit the paltry HLS
> funding that NASA is currently getting from Congress.


That was the major reason. That, and the (surprising?) fact that the
Lunar Starship risks turned out not to be higher than the risks of the
others.

Even the SpaceX proposal exceeded the money available for the first
year(s), so NASA had to negotiate a delayed payment plan with SpaceX.

Snidely

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Apr 22, 2021, 2:04:46 PM4/22/21
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Lo, on the 4/21/2021, Niklas Holsti did proclaim ...
Also, this is not the whole enchilada of lunar landings, and may only
cover the first /unmanned/ lunar landing. The other two have been
invited to compete in a second contract bid, and I think Eric Bergen
covered this (briefly).

Also, the VIPER landing is a separate contract won by a startup that we
don't know much about yet, but I think they building something bigger
than an Electron but smaller than a Falcon Heavy. I need to go back to
coverage of that announcement to be more precise.


/dps

--
"I'm glad unicorns don't ever need upgrades."
"We are as up as it is possible to get graded!"
_Phoebe and Her Unicorn_, 2016.05.15

Niklas Holsti

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Apr 22, 2021, 2:56:07 PM4/22/21
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On 2021-04-22 21:04, Snidely wrote:
> Lo, on the 4/21/2021, Niklas Holsti did proclaim ...
...
>> Even the SpaceX proposal exceeded the money available for the first
>> year(s), so NASA had to negotiate a delayed payment plan with SpaceX.
>
> Also, this is not the whole enchilada of lunar landings, and may only
> cover the first /unmanned/ lunar landing.


The current SpaceX contract includes one unmanned landing and one manned
landing. Of course, that is only the _plan_.

But yes, there will be more opportunities. The question is if there is
any credible competition for SpaceX at that time. Given the weaknesses
and price of the losing proposals from the National Team and Dynetics
that may be doubted.

Jeff Findley

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Apr 22, 2021, 5:05:24 PM4/22/21
to
In article <mn.b2987e54c62289ee.127094@snitoo>, snide...@gmail.com
says...
> Also, this is not the whole enchilada of lunar landings, and may only
> cover the first /unmanned/ lunar landing. The other two have been
> invited to compete in a second contract bid, and I think Eric Bergen
> covered this (briefly).

I believe the HLS contract that was just awarded calls for one uncrewed
test flight followed by one crewed test flight.

dump...@hotmail.com

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Aug 16, 2021, 1:39:50 AM8/16/21
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NASA's Defense Of Picking SpaceX For Lunar Landing Reveals Details
Of Plan And Throws Real Shade:

"I’ve been looking through the report, and it reveals NASA’s unflinching
support of the SpaceX decision. One big reason is that SpaceX’s
proposal was the cheapest, at just under three billion dollars, while Blue
Origin was right about double that at nearly six billion, and Dynetics half
again as much at nine billion."


"You might notice in that chart there that Dynetics’ offering was the only
one to be listed as “marginal” when it came to the “technical” category.
That’s what leads us to what may be the sickest burn in NASA/GAO
history."

See:

https://jalopnik.com/nasas-defense-of-picking-spacex-for-lunar-landing-revea-1847477379

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