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Author Topic: Cargo Rocket Space System Box Wing, the "CRoSSBoW" Air Launch To Orbit concept  (Read 5318 times)

Offline RanulfC

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Ok, NSF has an article on the proposed "StratoLaunch" system in which a picture appears:
 
IDed as the "ALTO-Crossbow System" (ALTO= Air Launch To Orbit), with "Crossbow" as "Cargo Rocket Space System Box Wing" which doing a google search (and a search here which turned up one "page" with nothing on it????) brought up this site:
http://eddy.nps.edu/IDDR/techMatrixPages/3d/crossbow/crossbow.html
 
... And that's it...
 
I found this paper here on NTRS:
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20070002822_2007001607.pdf
 
Which mentions that the name "Crossbow" was presented to NASA somewhere around 2005 but by this 2007 paper had come to mean any and all "ALTO" concepts and specifically the papers focus on findng the baseline "rules" for ALTO economics and feasability.
 
So does anyone know anything MORE on this particular project?
 
Randy

Offline Byeman

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Yes, the presentation is on NSF.  And it was provided by one of the paper's authors.  It doesn't exist anywhere else.  The author is on NSF, so ask him.

Offline RanulfC

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Yes, the presentation is on NSF.  And it was provided by one of the paper's authors.  It doesn't exist anywhere else.  The author is on NSF, so ask him.
We talking on L2? And who's the author?
 
Randy

Offline Byeman

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yes and look at the NTRS paper authors.

Offline diluther

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This post provides more information including advantages of dropped upper stages as opposed to winged upper stage parallel flight separation. 

http://thehuwaldtfamily.org/jtrl/research/Space/Launch%20Vehicles/Air%20Launch/Air%20Launch%20To%20Orbit%20-%20ALTO%20-%20Crossbow-concept,%20MSFC.pdf
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Offline Archibald

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Very, very interesting concept.
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Offline PMN1

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Interesting idea, anyone want to hazard a guess at the commercial viability of the passenger/freight module option verses a standard design aircraft, would there be an increase in drag?
 
 
« Last Edit: July 23, 2013, 07:24:23 am by PMN1 »

Offline GTX

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Definitely interesting.  Would be great to see at least a prototype.

Offline PMN1

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Does Stratolaunch plan the same pitch up launch?

Offline PMN1

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When is the earliest the wing shape used by the system can be built?

Offline Byeman

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Does Stratolaunch plan the same pitch up launch?

no, it is going to be like Pegasus.

Offline Byeman

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When is the earliest the wing shape used by the system can be built?

You really had to ask that?  The obivous answer is when the money is available.

Offline Avimimus

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Off topic - but I ready 'easliest' - which is more bizarre

Offline PMN1

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When is the earliest the wing shape used by the system can be built?

You really had to ask that?  The obivous answer is when the money is available.

What i'm thinking is 'are there airfrane design/construction' reasons that this could not be proposed earlier?

Offline Byeman

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There isn't a technology or material properties constraint, it was only a matter of somebody coming up with the idea and the money to implement it.  It could have been done decades ago.