Author Topic: CEV and Space Tug  (Read 15739 times)

Offline realtime

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CEV and Space Tug
« on: 08/08/2005 01:57 am »
Some pre-8/15 design info.  Very informative.

http://www.spaceref.com/news/viewnews.html?id=1057


Offline Chris Bergin

RE: CEV and Space Tug
« Reply #1 on: 08/08/2005 03:04 am »
Oh my. 300 ft 4x5 seg SRBs and 4xSSME

 :o

You'd have to evacuate Florida for that launch!
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Offline Flightstar

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RE: CEV and Space Tug
« Reply #2 on: 08/08/2005 03:13 am »
Good article, although some of it is a bit off or correctly a bit in the future. In-Line stretched ET with quad SRB and four SSMEs would be taking 300kt a fair distance!

Offline realtime

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RE: CEV and Space Tug
« Reply #3 on: 08/08/2005 03:16 am »
No kidding.  That would be a thunderous launch!  You might be able to hear it 'cross the pond.

No mention of Shuttle-B, or replacing SSMEs with cheaper RS-68's.  Note it also said "In nearly every case studied, an OMV would be needed for ISS and fleet proximity operations."


Offline Space101

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RE: CEV and Space Tug
« Reply #4 on: 08/08/2005 03:17 am »
wow, some serious power! NICE
Let's go and explore space.

Offline JamesSpaceFlight

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RE: CEV and Space Tug
« Reply #5 on: 08/09/2005 07:33 am »
I love the power involved here. Shows the US is serious again.

Offline Colby

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RE: CEV and Space Tug
« Reply #6 on: 08/10/2005 01:41 am »
I hope they go with something that powerful! This is an exciting time to want to be an aerospace engineer!
Colby

Offline gladiator1332

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RE: CEV and Space Tug
« Reply #7 on: 08/16/2005 05:30 pm »
I read somewhere that they even considered up to 6 SRBs. Kinda like the NOVA monsters they were considering for awhile during the Apollo days.
I assume something that large would have to be launched off the cost of Florida on a large sea platform...like a scaled up sea launch.

Offline Flightstar

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RE: CEV and Space Tug
« Reply #8 on: 08/16/2005 05:46 pm »
Hi, welcome to the site.

I don't think we could do 6 SRBs. The most we'd go for is four (five seg) SRBs - with four SSMEs for assent to LEO, then J2S to target.

Offline NASA_Twix_JSC

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RE: CEV and Space Tug
« Reply #9 on: 08/16/2005 05:58 pm »
Quote
gladiator1332 - 16/8/2005  12:30 PM

I read somewhere that they even considered up to 6 SRBs. Kinda like the NOVA monsters they were considering for awhile during the Apollo days.
I assume something that large would have to be launched off the cost of Florida on a large sea platform...like a scaled up sea launch.

Six SRBs would be in the realm of 150mt to LEO.

Offline gladiator1332

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RE: CEV and Space Tug
« Reply #10 on: 08/16/2005 07:54 pm »
Yeah six SRB's would be overkill...and I'm pretty sure what I was reading was purely hypothetical, I really don't see how NASA would consider something like that. Four SRBs is really the limit.

Offline Colby

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RE: CEV and Space Tug
« Reply #11 on: 08/16/2005 08:59 pm »

What do you mean "overkill"? Do you mean just the notion of have six SRBs strapped onto a booster, or is it too much of an engineering problem, considering G's? I'm sure that sounded unintelligent, but I'm interested.

Colby

Offline gladiator1332

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RE: CEV and Space Tug
« Reply #12 on: 08/17/2005 02:37 am »
I guess it is more of the ntion of six SRBs. As of now there really is no need for it, 4 SRBs will get the job done. Sure it won't be easy engineering wise, but I'm sure there is a way to do it.

Offline realtime

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RE: CEV and Space Tug
« Reply #13 on: 08/17/2005 04:48 am »
Quote
NASA_Twix_JSC - 16/8/2005  1:58 PM

[Six SRBs would be in the realm of 150mt to LEO.

Sounds like there's a "knee" in the SRB to mt curve where you're just wasting SRBs.  Unless you really NEED to put 150 mt up in one shot.

Also, how do you separate them all?  One big bang or peel them off a pair at a time?  You'd be either have them banging into each other on the way down or they'd be spread halfway across the Atlantic.


Offline Jason Sole

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RE: CEV and Space Tug
« Reply #14 on: 08/17/2005 10:37 pm »
Can some explain to me why it's required to take up so much weight in one launch? Modules to go to the Moon? Join them together to make a bigger ship?

Offline AndyMc

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RE: CEV and Space Tug
« Reply #15 on: 08/17/2005 11:34 pm »
Hi,

I guess the more launches, the more can go wrong. I think NASA can live with the proposed in-line booster (around 100 tonnes) for the next 20 years or so. Seeing the budget is limited and the plan is for a steady program of exploration of the Moon, Mars and NEOs thats all thats really needed. One thing pointed out on Nasawatch in the last few days is that NASA administrator Mike Griffin is still on the steering committee of the Mars Society, http://www.marssociety.org/about/committee.asp So Dr Zubrin's plans may yet come to pass. The new in-line heavy lift booster proposed is almost identical to the Ares launcher proposed by the Mars Society. http://www.astronautix.com/lvs/ares.htm

Cheers,


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