Author Topic: SpaceDev banking on Dream Chaser  (Read 21269 times)

Offline publiusr

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RE: SpaceDev banking on Dream Chaser
« Reply #20 on: 11/17/2005 06:55 PM »
I love the Energiya/Buran type side-mount stack.

Over at the www.buran.ru website there was an enormous sidemount lifting body. The topmount "Glushkoyot" MTKVA was larger but needed to be top-mounted on Vulkan. This is an AMROC mini-Buran position with a bit of the SLI look---what with the lifting body in front of a long tube--rather like Spiral 50/50.

But I thought this Dream Chaser was to be a scaled up X-34, though:
http://www.popsci.com/popsci/aviationspace/879989c49db84010vgnvcm1000004eecbccdrcrd.html

Wings too heavy?  

I won't be happy until I see this:

http://starshipmodeler.net/cgi-bin/phpBB2/viewtopic.php?t=32645
http://pg.photos.yahoo.com/ph/mommydawn2000/album?.dir=/318f

Now that's a space shuttle. Where's my Energiya neXt?

Offline Zachstar

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RE: SpaceDev banking on Dream Chaser
« Reply #21 on: 11/17/2005 07:56 PM »
Yawn I bet it cost 60 mil to fly it

T-space is better and safer

Offline AndyMc

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RE: SpaceDev banking on Dream Chaser
« Reply #22 on: 11/17/2005 08:34 PM »
The more ther merrier I say!

If there really is a market for space tourism, then some competition can only drive the price down. SpaceX, t-Space, Space Dev, CEV, Klipper - I like em all :)

Oops - forgot SS2

Offline CuddlyRocket

RE: SpaceDev banking on Dream Chaser
« Reply #23 on: 11/17/2005 09:38 PM »
This is highly unlikely to get an FAA licence for commercial manned flight, as a side-mounted orbiter is perceived to be an inherently unsafe design.

Offline Chris SF

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RE: SpaceDev banking on Dream Chaser
« Reply #24 on: 11/18/2005 10:49 AM »
Only because of foam and debris. This one doesn't use super cold fuel so it doesn't have that problem that yousay would be feared.

Offline SimonShuttle

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RE: SpaceDev banking on Dream Chaser
« Reply #25 on: 11/18/2005 11:36 AM »
And it's it only for the first part of the flight, then it becomes a single stick stage?

Offline UK Shuttle Clan

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RE: SpaceDev banking on Dream Chaser
« Reply #26 on: 11/18/2005 12:37 PM »
Looks like the booster section is just for the ride the SRBs would be for the STS. And given the article says the ice and foam concerns are no more than that previous argument doesn't seem to stand up.

Offline publiusr

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RE: SpaceDev banking on Dream Chaser
« Reply #27 on: 11/18/2005 08:42 PM »
Side mount keeps your connectors and your rocket motors separated by a good bit, at least. Ice should not be a problem.

The less said about Forrest Gumps t/Space nonsense the better.

Offline AndyMc

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RE: SpaceDev banking on Dream Chaser
« Reply #28 on: 11/18/2005 09:07 PM »
It looks like the USAF will be providing some of the investment for the development of the boosters: http://www.spacedaily.com/news/rocketscience-05zzw.html

SpaceDev Awarded Hybrid Rocket Motor Contract
Nov 18, 2005
SpaceDev has been awarded a $2.7 million contract by the Air Force to begin work on a large hybrid rocket motor.

SpaceDev is to design, develop and test a small common booster capable of producing about 100,000 pounds of thrust, almost nine times that of the SpaceDev rocket motor technology used in Paul Allen's SpaceShipOne which won the $10 million Ansari X Prize last year. Test firings of the prototype rocket motor are to begin next year.

........."We also believe that this technology will be another significant step toward developing our own reliable, low cost, safe cargo and crew vehicles, like our proposed SpaceDev Dream Chaser orbital human space transportation vehicle. We believe the technology can also be adapted for use alone as a sounding rocket or target in our proposed SpaceDev Streaker small launch vehicle family."


Offline CuddlyRocket

RE: SpaceDev banking on Dream Chaser
« Reply #29 on: 11/19/2005 11:05 AM »
Quote
Chris SF - 18/11/2005  11:49 AM

Only because of foam and debris. This one doesn't use super cold fuel so it doesn't have that problem that yousay would be feared.
Quote
UK Shuttle Clan - 18/11/2005  1:37 PM

Looks like the booster section is just for the ride the SRBs would be for the STS. And given the article says the ice and foam concerns are no more than that previous argument doesn't seem to stand up.
Ice and foam are not the only concerns with a side-mounting. The fundamental problem is that if anything happens to the booster, the manned compartment is alongside, rather than above. This increases the risk that the manned compartment will be damaged, and decreases the efficitiveness, and therefore survivability, of any measures to get the crew safely away. Ice and foam did not cause the loss of Challenger.

Given that NASA is trumpeting the CEV at the top of the stick as one of the main reasons for the decreased risk it quotes, any bureaucrats at the FAA who come to license the Dream Chaser will be all over this aspect of the design like a rash.

Offline AndyMc

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RE: SpaceDev banking on Dream Chaser
« Reply #30 on: 11/22/2005 10:04 AM »
In case anyone couldnt find the link to those earlier pictures of the Dreamchaser, here it is: http://www.spacedev.com/newsite/templates/subpage2_article.php?pid=542

Includes a short video of the launch of the sub-orbital version



Offline Avron

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RE: SpaceDev banking on Dream Chaser
« Reply #32 on: 11/23/2005 03:08 AM »
Looks nice... I wish them luck..

Offline publiusr

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RE: SpaceDev banking on Dream Chaser
« Reply #33 on: 11/23/2005 05:34 PM »
I didn't like their Wan Hoo rocket chair however. Some other Dream Chaser links here and discussion:
http://spacefellowship.com/Forum/viewtopic.php?t=798&postdays=0&postorder=asc&start=195

Offline publiusr

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RE: SpaceDev banking on Dream Chaser
« Reply #34 on: 12/02/2005 03:52 PM »
I didn't think much of SpaceDev bashing Griffin:

Heavy Lift of all kinds seems to be suffering lately. On page 41 of the Nov 28, 2005 AV Week is yet more bad news. The XCH-62 was the largest helicopter prototype made in the US. As you know the Army is leading the Joint Heavy Lift program.

So what did they do with the prototype?

They crushed it.

XCH-62 had been sitting around, waiting to be reborn--and now this. Heavy Lift just doesn't have support--people want sexy weapons. Sickening.

There is some good news. A company has a rolling platform that can lift 800 tons, and that might be a help to Musk, SpaceDev and even Rutan:

www.shuttlelift.com

In other news, Professor Mark West from the University of Manitoba has a new concept of using fabric formed concrete molds. This could be of some use not only on the moon but for Xprize candidates who need novel ways of building structures. Professor West was good enough to place his know-how in the public domain--free to anyone who wants it. This may be helpful to those of you who need a static test stand:

http://www.acresinnovations.com/summer2004/west_guest.html

In other news--

Sea Dragon, the largest of all sea-launched rockets, doesn't seem so big now. Jack Shick, a member of the American Polar Society has a patent on Iceberg Utilization, as described on page17 of the Spring-Summer 2004 issue of The Polar Times (Vol. 3, No 5). He can be contacted at globalwsjns@aol.com His patent may be found at www.uspto.gov --enter patent number 6688105, or try the link below:

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=6688105.WKU.&OS=PN/6688105&RS=PN/6688105

The tech needed for this could be used for Sea Dragon--a true HLLV


Misc article:
The Space Review: Why Democrats should support space exploration
http://www.thespacereview.com/article/499/1

Nice links:
http://groups.yahoo.com/group/space-modelers/files/Mariner%2010/Mariner10-top.jpg

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Nice work!

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