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Author Topic: Project ISINGLASS & Project RHEINBERRY  (Read 130130 times)

Offline starviking

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #15 on: September 20, 2008, 06:04:17 am »
I just had an idea pop in my head. What if the raised cowl up front is a jettisonable heat shield for some kind of sensor window?

Wouldn't that require another shield if the craft was to be recovered. Perhaps it's a payload door that retracts back into the hull? Could just be an artefact of the model though - somewhere to stick a motor or attach electric or hydraulic lines to power moving surfaces?

Offline starviking

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #16 on: September 20, 2008, 06:06:30 am »
ah, the good ol' HGV. Hey, is it me or is the nose slightly raised from the rest of the craft's surface. It always had a notched appearance of sorts. I'm thinking of doing a 3-view of this beast, homework permitting (it's on the backburner with my X-37 model and few other little projects).

Moonbat

Looks to me like the fuselage is just fattened out a little bit around that 'cowl' area close to the nose.

Then again, on closer examination the leading edge of the wing, coupled with the 'hole' on top may just be giving that impression.

Offline flateric

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #17 on: November 20, 2008, 05:57:34 am »
Number of GD Convair Div. documents from the mid-60s (1964-1968) contain information of full-scale, flightweight,  LH2 tank test article built for Mach 6 cruise hypersonic vehicle, of which just one image appears. Interesting to note that, as well as MDD hypersonic vehicles family shapes have close resemblence to each other since 1960s, seems the same case with GD stuff - one that pictured here, in spite of the fact that its much larger, looks pretty close to GD HGV concept from 80s (for example, its artist's impression has appeared in Bill Sweetman's Aurora).

You can judge the vehicle size from the tankage dimensions shown. Was it or not somehow related to Isinglass, remains quite questionable, but obviously it was a design that the same guys were working on.

Source
DESIGN, FABRICATION, AND TESTING OF A FLIGHT WEIGHT, 6,000 GALLON, LIQUID HYDROGEN TANKAGE SYSTEM FOR ADVANCED VEHICLE APPLICATIONS

John H. Heathman
Advanced Launch and Re-entry Systems
Convair division of General Dynamics
San Diego, California

Lawrence R. Phillips
Senior Design Engineer Aerospace Engineer
Structures Division
Air Force Flight Dynamics Laboratory
Wright-Patterson AFB, Ohio
« Last Edit: November 20, 2008, 05:59:41 am by flateric »
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Offline LowObservable

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #18 on: November 20, 2008, 10:46:26 am »
Flateric wins the Internet Detective badge for this week.

I wonder what was at the other end of the fuel line from this thing? How about the giant ejector ramjet that was sitting in Marquardt's back-lot in the 80s and 90s?

Offline flateric

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #19 on: November 20, 2008, 03:46:52 pm »
...and 4500-nautical-mile, Mach 8 cruise mission dual-fuel vehicle from 1967

Engines were combo of turbojets/dual-mode cramjets, fuels studied varied "...from all LH2 to a combination of JP4 and LH2 corresponding to minimum LH2 for cooling."

PARAMETRIC SYNTHESIS AND PERFORMANCE ANALYSIS OF DUAL-FUEL HYPERVELOCITY CRUISE VEHICLES
H. GLENN BALL and E. I. GOMEZ
General Dynamics Corporation
Forth Worth, Texas
AlAA Paper # 67-559

« Last Edit: November 20, 2008, 03:48:32 pm by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline mz

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #20 on: August 14, 2009, 08:50:29 am »
Isinglass document presented by Dwayne Day at nasaspaceflight.com forum:

http://forum.nasaspaceflight.com/index.php?topic=18261.msg291469;topicseen#new

Seems mostly discussion memos, not much technical stuff... Don't know if there's much new there?

It seems I can't attach the pdf file, too bad, it's 2.4 megs.

Offline sferrin

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #21 on: August 14, 2009, 09:18:16 am »
Flateric wins the Internet Detective badge for this week.

I wonder what was at the other end of the fuel line from this thing? How about the giant ejector ramjet that was sitting in Marquardt's back-lot in the 80s and 90s?

Did anybody happen to snap a picture of it?
"DARPA Hard"  It ain't what it use to be.

Offline antigravite

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #22 on: August 16, 2009, 01:51:03 am »
Hope this helps.
- - - - - - - - - - - - - - - - - - -
L e t   b o l d s   b e   l i g h t
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Offline LowObservable

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #23 on: August 16, 2009, 10:35:01 am »
Way cool stuff. New material on the intended timeline, and strong hints that either explanation for the demise of Isinglass - either problems with distortion caused by heat on the camera window, or the NRO winning a battle and getting full funding for KH-10 - could be accurate. And it had TWO XLR-129s in the back end. They were not screwing around there.

Offline blackstar

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #24 on: August 17, 2009, 08:52:28 pm »
Way cool stuff. New material on the intended timeline, and strong hints that either explanation for the demise of Isinglass - either problems with distortion caused by heat on the camera window, or the NRO winning a battle and getting full funding for KH-10 - could be accurate. And it had TWO XLR-129s in the back end. They were not screwing around there.

I suspect that ISINGLASS' demise had more to do with the retirement of General Bernard Schriever.  Technical challenges may also have hurt it, but Schriever was apparently the program's patron on the USAF side.

Offline sferrin

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #25 on: August 17, 2009, 09:07:32 pm »
Way cool stuff. New material on the intended timeline, and strong hints that either explanation for the demise of Isinglass - either problems with distortion caused by heat on the camera window, or the NRO winning a battle and getting full funding for KH-10 - could be accurate. And it had TWO XLR-129s in the back end. They were not screwing around there.

I suspect that ISINGLASS' demise had more to do with the retirement of General Bernard Schriever.  Technical challenges may also have hurt it, but Schriever was apparently the program's patron on the USAF side.

Any thoughts on McDonnell Douglas's GRM-29A?
"DARPA Hard"  It ain't what it use to be.

Offline PaulMM (Overscan)

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #26 on: August 18, 2009, 03:21:59 am »
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Offline Skyblazer

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #27 on: August 18, 2009, 03:39:17 am »
Very interesting, Paul!
And to top it all, we learn that ISINGLASS was McDonnell's Model 192!

Offline blackstar

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #28 on: August 18, 2009, 04:40:21 am »
Any thoughts on McDonnell Douglas's GRM-29A?

What was that again?

Offline sferrin

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Re: Project ISINGLASS & Project RHEINBERRY
« Reply #29 on: August 18, 2009, 05:28:52 am »
Any thoughts on McDonnell Douglas's GRM-29A?

What was that again?


The one there in the middle.
"DARPA Hard"  It ain't what it use to be.