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US Lifting Bodies Studies - START (ASSET/PRIME), FDL, X-24, etc.

airrocket

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There was a way to deal with the "sharp" nose heating issue. If one studies detailed drawings of the FDL-7 "sharp" LE the solution for the LE was very simple yet effective. Similar to a double pane glass window.
 

quellish

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Alpha Draco is covered pretty extensively in "Engineering the space age: a rocket scientist remembers"

Most of the book is available freely online:
http://books.google.com/books?id=y-_qkTUY_MMC&lpg=PA163&ots=eDE15HvshG&dq=%22low%20level%20run%20in%22%20reentry&pg=PR6#v=onepage&q=alpha%20draco&f=false

There is some mention of ASSET as well.
 

DSE

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quellish said:
Alpha Draco is covered pretty extensively in "Engineering the space age: a rocket scientist remembers"

Most of the book is available freely online:
http://books.google.com/books?id=y-_qkTUY_MMC&lpg=PA163&ots=eDE15HvshG&dq=%22low%20level%20run%20in%22%20reentry&pg=PR6#v=onepage&q=alpha%20draco&f=false

There is some mention of ASSET as well.
Or grab a copy of the PDF: http://aupress.au.af.mil/digital/pdf/book/brulle_engineering_space_age.pdf
 

Retrofit

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"Quote" deleted :-X

So the FLD7 (1967) was a result of the MDD model 176 (1964), not the contrary?
 

flateric

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Retrofit, do you know term 'extensive overquoting'?
 

blackstar

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flateric said:
Retrofit, do you know term 'extensive overquoting'?
At least break the quote up a bit into easy-to-digest pieces.
 

Retrofit

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blackstar said:
flateric said:
Retrofit, do you know term 'extensive overquoting'?
At least break the quote up a bit into easy-to-digest pieces.
Sorry All for my previous TTGTB post. I was trying to plot, years by years, the different AFFDL lifting bodies researches and I was just wondering about the following comment by Paul Czyst (presented in Flateric's post #25 dated August 08, 2007):

"In a 1964 brief, Roland Quest of McDonnell Douglas Astronautics, St. Louis, presented a fully reusable hypersonic glider, the so-called model 176, ...
The Model 176 began with the collaboration of Robert Masek of McDonnell Douglas and Alfred Draper of AFFDL in the late 1950’s on hypersonic control issues. After a series of experimental and flight tests with different configurations the “X” tail configuration and the FDL-7C/D glider configurations emerged as the configuration that was inherently stable over the Mach range and had earth circumferential glide range. The result was the FDL-7MC and then the McDonnell Douglas Model 176."

In the here-attached chart named "Delta body spacecraft development", the FDL-7 is dated around 1967.

Therefore my previous post' interrogation "So the FLD-7 (1967) was a result of the MDD model 176 (1964), not the contrary?"

Sorry again for the confusion!
 

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Desert Dawn

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Retrofit said:
"Quote" deleted :-X

So the FLD7 (1967) was a result of the MDD model 176 (1964), not the contrary?
Hi Retrofit:

The family tree for FDL-7 is (in progressing order):

FDL-7 C/D

FDL-7 MC (that's the one with the more rounded fuselage shape (but cross section still fairly trapezoidal) in the group photo of USAF lifting body desk models)

FDL-7 Model 176 A

FDL-7 Model 176 B (longuer than the A version).

(and without counting all the little sub-variants, like the earlier conical nose variants of Model 176).

Model 176 was the most recent one and the one that most recently started to get declassified.

Stephane
Stratosphere Models
Website: http://www.picturetrail.com/stratospheremodels
 

XP67_Moonbat

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Lookin through DRJ's 2001 edition of SPACE SHUTTLE, in the color pages I saw an image of an M2-F2 atop a Titan II. Was there actually a serious proposal for that? And where can I find it?
 

sferrin

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sublight said:
The system kills the part of the link that starts the vid at 11:55. This linky works.

http://youtu.be/nkIJS7bNoNc?t=11m55s
Thing is there is other interesting stuff on that video too. Hound Dog launch, Titan II RV reentry, conical Atlas RV, Mace launch, etc.
 

Triton

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McDonnell ASSET model found on eBay.

URL:
http://www.ebay.com/itm/RARE-TOPPING-MCDONNELL-ASSET-RE-ENTRY-VEHICLE-DESK-SHELF-MODEL-/180897860383?pt=LH_DefaultDomain_0&hash=item2a1e5a4b1f

Seller's Description:

RARE TOPPING MODEL OF THE MCDONNELL "ASSET" RE- ENTRY VEHICLE. DESIGNED IN 1960 - THIS SUB-SCALE VEHICLE WAS ORIGINALLY DESIGNED TO VERIFY THE INTEGRITY OF THE HEAT SHIELD ON THE BOEING X-20 DYNASOAR PROJECT VEHICLE. LATER USED FOR SPACE SHUTTLE RE-ENTRY DATA. SIX WERE BUILT, SEVERAL LAUNCHED, AND ONLY ONE SURVIVES. MODEL AND STAND IN EXCELLENT CONDITION - ORIGINAL DECALS INTACT. NOSE AND BOTTOM OF DELTA PAINTED AS IF IN RE-ENTRY MODE - SEE PHOTOS. MEASURES 3.5" LONG & 2.75" W/S. VERY COLORFUL MODEL IS SOLID AND STRAIGHT - DISPLAYS VERY WELL. VERY HARD TO FIND IN ANY CONDITION.
 

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Triton

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XP67_Moonbat

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Anybody have copy of this study from Northrop?

Fallis, William B.: Feasibility Study of Minimum Manned Lifting Body Entry Vehicle. Vol. I. Publication NB 66-9 (Contract No. NAS 4-840), Northrop Norair, Jan. 1966.

I saw it referenced in James Sparks' Winged Rocketry, tracked the title down, but only managed one hit on Google, as a reference in another report.
 

XP67_Moonbat

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MANEUVERING AEROTHERMAL TECHNOLOGY (MAT) PROGRAM

http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA118876

Found this while looking for the Northrop study.

Arrow down to Page 81. There's a reference to Hoyt, T. L., "Small Evader Vehicle (SEE) Feasibility Study AerodynamicFinal Report," (U) GE-ALDM-72-120, November 1972 (Secret).

Anyone ever hear of the Small Evader Vehicle?
 

XP67_Moonbat

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Here's a 1960 report from Convair, HYPERSONIC GLIDE VEHICLE DESIGN CONSIDERATIONS. It's actually kinda "meh".

http://www.dtic.mil/dtic/tr/fulltext/u2/681567.pdf
 

XP67_Moonbat

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Here's a nice one, EVOLUTION AND DEVELOPMENT OF HYPERSONIC COlFIGURATIONS 1958-1990

http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA242768

128 pages including all the cover pages and bibliography. Check out the illustrations on 70,84,85, 99, & 108. From 111 on, Beta shows up.

Some of these drawings were in Sweetman's Aurora book.
 

Stargazer2006

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The Small Evader Vehicle is mentioned in an interesting post here:
http://www.espacial.com/contacto/10/viewtopic.php?f=10&p=25161&sid=a2ab1deec35f16c410cacad9f710a003
 

Meteorit

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Thanks for these. But when, oh when, will we get three-view drawings of any of the MDC Mach 6/Mach 12 designs from the 1960s-1980s?
 

Stargazer2006

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Stargazer2006

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A lot more X-24C in this fantastic 93-page file:

JOINT USAF/NASA HYPERSONIC RESEARCH AIRCRAFT STUDY

Frank S. Kirkham and Robert A. Jones, NASA Langley Research Center
and Melvin L. Buck and William P. Zima, Air Force Flight Dynamics Laboratory
August 4-8, 1975

Passing mention is made of the following design variations (bold type indicates images):
  • X-24C-9
  • X-24C-10
  • X-24C-12-I
  • X-24C-12-X
  • X-24C-12-X2
  • WHRA-52
  • HSRA
  • HYFAC
  • Winged HYFAC
I suggest the X-24C be split and made into a separate topic.
 

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bobbymike

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Stargazer do you have a PDF of that wonderful 93 page document?
Stargazer2006 said:
A lot more X-24C in this fantastic 93-page file:

JOINT USAF/NASA HYPERSONIC RESEARCH AIRCRAFT STUDY
Frank S. Kirkham and Robert A. Jones, NASA Langley Research Center
and Melvin L. Buck and William P. Zima, Air Force Flight Dynamics Laboratory
August 4-8, 1975

Passing mention is made of the following design variations (bold type indicates images):
  • X-24C-9
  • X-24C-10
  • X-24C-12-I
  • X-24C-12-X
  • X-24C-12-X2
  • WHRA-52
  • HSRA
  • HYFAC
  • Winged HYFAC
I suggest the X-24C be split and made into a separate topic.
 

Stargazer2006

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bobbymike said:
Stargazer do you have a PDF of that wonderful 93 page document?
Silly me! I forgot to include the link (I have fixed that mistake now, the link has been added).

However, please keep in mind that the pics in the original report are far from being as clean as the attachments here. I did a heavy amount of cleaning-up and enhancing on them, in fact, I nearly spent the whole afternoon just on this handful of scans... but I really believed they were worth it!

This being said, the rest of the document (hand notes, etc.) is priceless as it is for anyone with a serious interest in the lifting bodies and spacecraft projects of the 1960s and 1970s, especially since it describes the parallel design evolution of USAF and NASA projects—all culminating into the X-24C—and the engine choices that were considered.
 

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bobbymike

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As some of these studies come from the Ballistic Missile Office I wonder what other studies are available as you can see below the Ground Based Strategic Deterrent PMO recently reviewed more than 250 prior studies to do with all aspects of a future ICBM which I assume included RV technologies.

In an Oct. 31 email provided by a Kirtland AFB spokesman, GBSD Provisional Program Manager Antonio Rendon said the Air Force has completed a number of activities since February, including reviewing more than 250 studies in an effort to properly leverage previous GBSD-related findings.
 

blackstar

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bobbymike said:
In an Oct. 31 email provided by a Kirtland AFB spokesman, GBSD Provisional Program Manager Antonio Rendon said the Air Force has completed a number of activities since February, including reviewing more than 250 studies in an effort to properly leverage previous GBSD-related findings.
Military jargon. Blah.
 

Stargazer2006

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blackstar said:
Military jargon. Blah.
Maybe, maybe not...

Here's another very nice piece of the X-24C puzzle, a 159-page document dated April 1975 which goes over the design's inception and compares the different versions' merits. The study sort of contradicts itself at times as to what version carries which designation, but here is probably the most reliable breakdown:
  • X-24C-9: Feasibility study, 46.1-foot long (1973).
  • X-24C-10: Concept I, 48.5-foot baseline configuration, with internal propellant tanks (August 1974).
  • X-24C-10B: Concept II, recommended enlarged baseline with improved shape, conical nozzle, 65% ramp and increased propellant capacity (November 1974).
  • X-24C-11: Concept II, 53-foot variant, 43% ramp.
  • X-24C-11B: Concept II, 50.4-foot variant, improved shape, 65% ramp.
  • X-24C-10C: Concept III, 48.5-foot variant with full-depth payload bay, conical nozzle, 82% ramp and external droppable propellant tanks (January 1975).
  • X-24C-12: Concept III, similar to X-24C-10C but with a 46% ramp.
Final recommended version is X-24C-10C, but in other pages it seems to be X-24C-12. This leads me to wonder if the latter is not just a redesignation of the former, though the inclination of the lower surface ramp is doubled on the -10C variant.
Once again, the attachments below have been heavily reworked and enhanced from a very lousily scanned set of documents. More will follow.


Source:
Experiments Impact on X-24C Flight Research Vehicle
Martin Marietta, April 1975
 

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Retrofit

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Stargazer2006 said:
Final recommended version is X-24C-10C, but in other pages it seems to be X-24C-12. This leads me to wonder if the latter is not just a redesignation of the former, though the inclination of the lower surface ramp is doubled on the -10C variant.
Once again, the attachments below have been heavily reworked and enhanced from a very lousily scanned set of documents. More will follow.
It seems that the X-24C-12I was the basic configuration for the next researches (NHFRF),
Then the X-24C-12IBT (Boat Tail), the X-24-X1, the X-24-L16 and finally the X-24C-L301.

Sources:
http://crgis.ndc.nasa.gov/crgis/images/3/36/PEN00280.pdf Page: 22/142
http://crgis.ndc.nasa.gov/crgis/images/4/47/PEN00275.pdf Page 1/104
 

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airrocket

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Give those wings more anhedral to form an "X" pattern with the vertical fins and they get more bite at high AOA and roll stability on high swept gothic delta planform otherwise 301 looked very good.
 

blackstar

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Has anybody seen pictures of PRIME being recovered from the ocean? I just saw a photocopy of a recovery, although I suspect that it was not the flight vehicle but a recovery test of a mockup.
 

Void

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This would have been a better place for what I just posted, it might even be here.

Woops. :-[
 

Triton

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Model of McDonnell ASSET found on eBay.

Source:
http://www.ebay.com/itm/Vintage-RARE-McDonnell-ASSET-Mercury-GEMINI-NASA-Spacecraft-DESK-MODEL-/281138881739?pt=LH_DefaultDomain_0&hash=item41752ee4cb

Seller's description:
60s Metal RARE McDonnell ASSET ReEntry GEMINI NASA Spacecraft SMALL DESK MODEL

This great model came from an Engineer from McDonnell in St Louis (birthplace of the Gemini capsule) who also had a few other models from similar Space and Air Force projects, see sellers list in coming days.

ORIGINAL Vintage piece DECAL WEAR as seen, possibly chalk/ plaster on a great metal base. A great piece of US ( United States of America) Space History. The unit is about 5 inches long and does not come off the stand which is about 5 1/2 inches wide. The story behind this craft is fascinating please read below, not stated but possible pre-technology of the shuttle.


ASSET, or Aerothermodynamic Elastic Structural Systems Environmental Tests
 

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Triton

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Model of McDonnell ASSET (Aerothermodynamic Elastic Structural Systems Environmental Tests) found on eBay.

Source:
http://www.ebay.com/itm/Vintage-RARE-McDonnell-ASSET-Mercury-GEMINI-NASA-Spacecraft-DESK-MODEL-/281138881739?pt=LH_DefaultDomain_0&hash=item41752ee4cb
 

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Triton

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Of the six vehicles built, only one was successfully recovered and is currently on display at the National Museum of the United States Air Force in Dayton, Ohio.
 

Boxman

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Recently posted by the San Diego Air & Space Museum (SDASM) Archives on their YouTube page, film (albeit silent) of a PRIME / X-23 test article being unloaded, mated to and launched from an Atlas missile.
SDASM Title: "Atlas X-38 Prototype Arrival (PRIME/X-23), Unloading, Mating and..."
http://www.youtube.com/watch?v=gDAPjumZA1s
 
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