Back to the moon, only CEV reuseable?

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Philip - 22 Sep 2005 02:33 GMT

Looking at the planned vehicles for the return to the moon, the
article(s) seemed to emphasize leverage of shuttle technology. For
example the use of SSMEs and SSRBs. However, only the CEV was described
as reusable.

Will the new systems also recover and reuse the boosters? If not, seems
like a waste of a good SSME which are supposed to be good for many firings.

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Mike Combs - 27 Sep 2005 18:50 GMT

> Will the new systems also recover and reuse the boosters? If not, seems
> like a waste of a good SSME which are supposed to be good for many firings.

The SRBs should be retrievable/reusable same as today, but I'm interested in
hearing about that 5 SSME cluster. Are we getting into disposable SSMEs
now? I thought they were way too complicated for that.

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Jeff Findley - 03 Oct 2005 23:02 GMT

> > Will the new systems also recover and reuse the boosters? If not, seems
> > like a waste of a good SSME which are supposed to be good for many
[quoted text clipped - 3 lines]
> hearing about that 5 SSME cluster. Are we getting into disposable SSMEs
> now? I thought they were way too complicated for that.

Complicated isn't the issue. Expense would be. But at the low predicted
flight rate of the stick and the SDHLV, I doubt NASA would want to spend the
money to make them recoverable. This new proposal shows that NASA still
doesn't care much about how much launch costs will dominate the program in
years to come.

Jeff

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blade_pride - 10 Oct 2005 21:05 GMT

I am not sure how many SSME's have been made for shuttle uses, but
maybe there just going to use what SSMEs that have in stock to get the
new CEV of the ground and them change to a non-reuseable SSME class
engine.

After all once the shuttle is gone there will still be some good SSME
engines left that can be used for something.

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carsten_niel@hotmail.com - 23 Oct 2005 16:05 GMT

Is it Block 1 SSMEs they will use ?

They use Block 2 on the Shuttle now.

Regards

Carsten Nielsen
Denmark

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Heinrich Zinndorf-Linker (zili@home) - 26 Oct 2005 21:50 GMT

Am 23 Oct 2005 08:05:46 -0700 schrieb "carsten_niel@hotmail.com":

>Is it Block 1 SSMEs they will use ?
>They use Block 2 on the Shuttle now.

I guess, they will use the most modern ones (block-2) on all manned
CEV launches - they _might_ use older ones only on unmanned cargo or
development flights.

cu, ZiLi aka HKZL (Heinrich Zinndorf-Linker)

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Space Forum / Space Flight / October 2005

Back to the moon, only CEV reuseable?