Dec 302017
 

The rewards for APR Patrons have been issued. This month:

CAD Diagram: Marquardt hypersonic burning ramjet booster

Diagram: Convair Class VP Airplane High Performance Flying Boat

Document 1: Apollo Exploration Shelter System

Document 2: Chrysler Work Station Capsule (“work pod” for astronauts)

Document 3: Sikorsky S-97 “Raider” brochure

 

If you are interested in helping to preserve (and get copies of) this sort of thing, consider signing up for the APR Patreon.

 

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 Posted by at 11:15 am
Dec 262017
 

This piece of art depicts the McDonnell-Douglas “Drawbridge” orbiter staging off the manned flyback booster, showing the wings still folded against the sides of the fuselage. The wings served no purpose during ascent; they would only be used after-re-entry. Of course, in the event of a mission abort shortly after launch, the wings would need to deploy fairly quickly. There are no doubt numerous abort scenarios where the orbiter would be left intact after separation from a presumably stricken booster (or after a main engine failure on the orbiter stage), but would nevertheless still be doomed due to inability to get the wings deployed in time.

I’ve uploaded the high-rez version of this artwork (5 megabyte 3951×2121 pixel JPG) to the APR Extras Dropbox folder for 2017-12, available to all APR Patrons at the $4 level and above. If you are interested in accessing this and other aerospace historical goodies, consider signing up for the APR Patreon.

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 Posted by at 3:19 pm
Dec 222017
 

The early development of the Space Shuttle was filled with bizarre designs, attempts to jam capabilities into existing technologies. One such unconventional concept came from McDonnell-Douglas: a low-cross-range orbiter atop a flyback booster. The orbiter, unlike the Shuttle Orbiter actually built, contained considerable internal propellant; the booster would get it up to high altitude and velocity, but the bulk of the actual delta V would come from the Orbiters own propulsion. The vehicle had small, straight wings that would fold up against the side of the fuselage for launch and for re-entry… but they would have to deploy on-orbit to allow the payload bay doors to open, and they’d deploy again once the craft had entered the atmosphere.

I’ve uploaded the high-rez version of this artwork (8 megabyte 5598×4529 pixel JPG) to the APR Extras Dropbox folder for 2017-12, available to all APR Patrons at the $4 level and above. If you are interested in accessing this and other aerospace historical goodies, consider signing up for the APR Patreon.

 

 

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 Posted by at 12:24 pm
Dec 202017
 

Mobile energy depot feasibility study: summary report

Description:

Declassified 28 Aug 1973. Various methods of producing and using nuclear power for military land vehicles and other military equipment were investigated and evaluated. A nuclear-powered mobile energy depot (MED) would move with advancing armies and produce vehicle fuels from materials readily available in the field. This would make mechanized units independent of external fuel supplies for extended periods, and permit them to move quickly and easily to areas impossible for units that depend on the customary fuel supply lines. Many possible MED systems were evaluated on the basis of energy sources, fuel manufacturing (by both conventional and chemonuclear processes), fuel storage and transportation, and fuel utilization in both present-day internal-combustion engines and power units of the future (i.e., fuel cells). The applications of more than a dozen MED systems to vehicular propulsion were studied.

The report can be downloaded directly from HERE.

Support the APR Patreon to help bring more of this sort of thing to light!

 

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 Posted by at 9:17 am
Dec 172017
 

A few days ago I uploaded in the 2017-12 APR Patron Extras Dropbox folder a scan of an old magazine article on the X-24 lifting body which including this interesting piece of art depicting an X-24 atop a Titan IIIc launch vehicle. There were indeed proposals to launch X-24 derivatives into orbit with Titan IIIs, but they wouldn’t be *exactly* X-24’s. The X-24 was not built as a spacecraft or a re-entry vehicle; it would be uncontrollable outside the atmosphere and would be a molten collection of rubbish on re-entry. Still, the proposed vehicles did look a *lot* like the X-24.

Support the APR Patreon to help bring more of this sort of thing to light!

 

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 Posted by at 12:32 pm
Nov 252017
 

I’ve put five of my large format cyanotypes on ebay, with starting bids far lower than the usual selling price.

https://www.ebay.com/itm/Space-Launch-System-1-72-scale-Diagram-Cyanotype-Blueprint/253278318585


https://www.ebay.com/itm/Large-Cyanotype-Blueprint-of-the-Consolidated-B-36-Bomber/253278304259


https://www.ebay.com/itm/Lockheed-Skunk-Works-hypersonic-X-24C-L301-cyanotype-blueprint/253278262083


https://www.ebay.com/itm/Boeing-2707-200-Supersonic-Transport-Isometric-cutaway-cyanotype-blueprint/253278272868


https://www.ebay.com/itm/Wasserfall-German-WWII-surface-to-air-missile-cyanotype-blueprint/253278294165

 

 

 

 Posted by at 5:14 pm
Nov 152017
 

A while ago an ebay seller had a display model of a maneuverable re-entry vehicle, a warhead for an ICBM.There was apparently no documentation to go with it, so details are pretty much utterly lacking. Still, it does look reasonably likely to have been a “real” display model built by or for the USAF or a defense contractor. It’s simple… a cone with four sides shaved off with four added flaps for control. This basic geometry has been popular for maneuverable warhead concepts for decades; McDonnell-Douglas used a similar shape (explicitly stated as having been derived from their maneuverable MIRV studies) for their Delta Clipper SSTO, and an even closer shape for their X-33 and follow-on concepts.

 Posted by at 11:27 am