Author Topic: VentureStar - back on!?!  (Read 21241 times)

Offline FransonUK

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RE: VentureStar - back on!?!
« Reply #20 on: 05/05/2005 05:14 AM »
I do love the pictures in the album section, while I also note this ship does look a lot like a fat version of the new CEV picutes from Lockheed Martin.

One wonders if the X-33 is pretty much a possible for the LEO specific end of the CEV needs, the workhorse for non-man rated missions like heavy lifts that Delta's can't deal with. I think this gets more interesting by the day.

Also, the Linear Aerospike Engines. How to they compare to the SSMEs?
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Offline jurgen

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RE: VentureStar - back on!?!
« Reply #21 on: 05/06/2005 10:18 AM »
...

Offline Chris Bergin

RE: VentureStar - back on!?!
« Reply #22 on: 05/06/2005 04:10 PM »
Just to update, I'm still - the journalist in me says to do this - holding till I get someone on quote. It's the only way to do this story.

Offline Chris Bergin

RE: VentureStar - back on!?!
« Reply #23 on: 09/13/2005 12:26 AM »
Some comments on this thread, http://forum.nasaspaceflight.com/forums/thread-view.asp?tid=439&start=1

Now moved back on to this thread for continuing to talk about the VentureStar.

Offline Bruce H

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RE: VentureStar - back on!?!
« Reply #24 on: 09/13/2005 01:29 AM »
Nice pictures! I hadn't noticed the album area.

Offline realtime

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RE: VentureStar - back on!?!
« Reply #25 on: 09/13/2005 04:00 PM »
It may happen, and it would be nice to see aerospikes made to work -- they offer great theoretical potential.  Don't know the weight penalty for Al/Li tanks, though.

The jury's still out on whether the vehicle can be made economically viable.  I think small companies like SpaceX are going to eat VentureStar's lunch with expendables and partially recoverable vehicles.

Full size VentureStar produces 1,435,000 lbs thrust from 7 RS-2200s.  Payload spec: 22,500 kg. (with composite tanks)

It is remarkably difficult to find any hard numbers for the VentureStar on the web.  Trade secrets, I suppose.


Offline publiusr

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RE: VentureStar - back on!?!
« Reply #26 on: 09/16/2005 08:03 PM »
An Ameicanized Energiya Buran would have cost as much as Venture Star--and would have given you an HLLV at least. I never did like the VentureStar concept.

Online nacnud

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RE: VentureStar - back on!?!
« Reply #27 on: 10/01/2005 03:11 PM »
I just found this on Defense Tech, Marines in Spaaaaaaaaace!

Could be one of the things that the X-33 could be used for.

Also see the presentation form xprizenews.org.


Offline FransonUK

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RE: VentureStar - back on!?!
« Reply #28 on: 10/01/2005 03:30 PM »
Awww, they look cute!
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Offline SimonShuttle

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RE: VentureStar - back on!?!
« Reply #29 on: 10/01/2005 03:34 PM »
Quote
FransonUK - 1/10/2005  10:30 AM

Awww, they look cute!

Women!  ;)

Offline Flightstar

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RE: VentureStar - back on!?!
« Reply #30 on: 10/01/2005 03:45 PM »
Quote
nacnud - 1/10/2005  10:11 AM

I just found this on Defense Tech, Marines in Spaaaaaaaaace!

Could be one of the things that the X-33 could be used for.

Also see the presentation form xprizenews.org.


This looks interesting. I can't seem to make the second link work? I maybe making a mistake. Any help?

Online nacnud

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RE: VentureStar - back on!?!
« Reply #31 on: 10/01/2005 03:48 PM »
http://www.xprizenews.org/Downloads/USAFSUSTAINBrief(Archive).ppt try that, the links in the defense tech articel aswell called 'Hot Eagle'

Humm, the board doesn't like links with brackets in them. Try typeing the whole thing or going to the article and then on from there.

Offline Flightstar

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RE: VentureStar - back on!?!
« Reply #32 on: 10/01/2005 03:52 PM »
Ah yes, the brackets messed up the URL. I've copied the whole thing and it's working now, will look. I'm getting good at this new fangled internet thing! :)

Offline Flightstar

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RE: VentureStar - back on!?!
« Reply #33 on: 10/01/2005 04:04 PM »
Very interesting. Lots of reading there. Noticed the super large X-43!

In concept of the VentureStar (X-33 demonstrator) I believe this concept would be not workable bar the lifting body design given the heavy influence on SSTO. The VentureStar has very little in the way of payload capacity in regards to the ratio total mass required for propellant. However, with a booster, that could change, but why would it. The VentureStar has strength in the ability of the Linear Aerospikes and those are capable of the stage to orbit. Maybe Bruce can talk more given he's a VentureStar guy.

Online nacnud

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RE: VentureStar - back on!?!
« Reply #34 on: 10/01/2005 04:14 PM »

I was thinking in terms of using X-33 techfor the RTLS booster stage, rather than developing the Venture Star as part ofthis architecture.

The X-43 and X-33 would be tech demonstrators as originally envisaged.

Still that a lot of money to get people there a few hours earlier...


Offline Flightstar

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RE: VentureStar - back on!?!
« Reply #35 on: 10/01/2005 04:18 PM »
That would be one very expensive booster, but at least it would be one fuel tank that could then fly itself back home to be resused, but is interesting.

Online nacnud

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RE: VentureStar - back on!?!
« Reply #36 on: 10/01/2005 04:23 PM »
Yeah interesting, I think thats as far as this idea will get :)

Offline Flightstar

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RE: VentureStar - back on!?!
« Reply #37 on: 10/01/2005 04:28 PM »
Bruce is here!

Offline Bruce H

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RE: VentureStar - back on!?!
« Reply #38 on: 10/01/2005 04:29 PM »
I don't think it would work as a booster with a sidemounted transport. The capability of the Aerospikes has a lot to do with the ability for manuvorbility and the lift off wieght will call for a couple of SSMEs on the transport (and then you need to have propellant for the SSME with the Aerospikes needing EVERYTHING the LOX and LH2 tanks have in the current capacity. Seperation would be similar to the STS and I know I don't like that for resuability issues given its design added to the resulting loss of the aero additions of the design (fins etc.) on a side mount. However, I'm thinking in reference to a good capacity troop carrier. The only side mount (top mount) design came from increase propellant capacity on a model I will post soon. I might need some coffee for this, but I'm happy to talk more.

Don't like it though!

Offline gladiator1332

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RE: VentureStar - back on!?!
« Reply #39 on: 10/01/2005 04:29 PM »
Quote
nacnud - 1/10/2005  11:11 AM

I just found this on Defense Tech, Marines in Spaaaaaaaaace!

Could be one of the things that the X-33 could be used for.

Also see the presentation form xprizenews.org.


Hmm, those launchers are rather interesting...they look very much like the deisgn that McDonnel Douglas proposed for their X-33:

http://members.aol.com/Nathan2go/X33trio.jpg
http://aerospacescholars.jsc.nasa.gov/HAS/cirr/Images/Mcddx33.jpg
http://www.hitechweb.szm.sk/x33.files/X-33proposals1.jpg
http://www.hitechweb.szm.sk/x33.files/X-33proposals2.jpg








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