Jun 232022
 

The Boeing 733 is *reasonably* well known as the designation for the Supersonic Transport before it got re-designated the 2707. However, Model 733 was sort of a catch-all designation for a long (numerically and temporally) series of designs covering the gamut from giant Mach 2+ SST’s down to bombers, strike aircraft and fighters. The link seems to be that the 733 started off specifically as an SST designation; but other aircraft types were designed using the same aerodynamics. A fighter that was basically a scaled-down SST might be a model 733 (such as the Model 733-605). Shown below is a reasonably commonly reproduced piece of art from the 80’s depicting what is sometimes called the Model 606; it’s actually the Model 733-606. I’ve seen diagrams for a number of aircraft based on this basic geometry; the 733-606-11 and 733-606-12 were strike aircraft. The aircraft below is generally described as an interceptor, sometimes as a supercruise research platform.

The full rez scan of this artwork has been uploaded to the 2022-06 APR Extras folder on Dropbox for APR Patrons and Subscribers.

 

 Posted by at 7:21 pm
Jun 182022
 

Recently sold on eBay was a display model for a vehicle labeled “SIPS.” No other data was available. However, this appears to be an upper stage modification for the LIM-49 Spartan surface-to-air anti-missile missile. Which suggests that the first “S” in “SIPS” standard for “Spartan.” Perhaps something like “Spartan Integral Propulsion System” or some such. However, this seems to appear to be a complete vehicle…. the very large first and second stage motors, as well as the warhead section, *appear* to have been replaced with a new, small booster with fins. Perhaps this was meant to test the third stage of the Spartan… or perhaps it was meant to be a way to find some use for the Spartan third stage after program cancellation, as some sort of scientific test vehicle.

The other photos from the ebay auction have been uploaded to the 2022-06 APR Extras folder on Dropbox for Patrons and Subscribers.

The diagram below shows the complete Spartan missile.

 Posted by at 12:12 pm
Jun 152022
 

HOTOL (HOrizontal Take Off and Landing) was a British Aerospace concept for a single stage to orbit airbreathing launch vehicle, originating in the mid 1980’s. It was a stellar example of aerospace optimism; like its contemporary the X-30 National Aerospace Plane, it relied on a propulsion system of spectacular complexity and stunning lack-of-actual-existence to function. As originally conceived it was supposed to have an RB545 engine; unlike the X-30’s scramjet engine, the RB545 was an air breathing rocket engine. Liquid hydrogen would be used to liquify incoming air, a portion of which would be turbine-fed into rocket engines to burn with the hydrogen. Due to some amazing bureaucracy, the engine was slapped with the “Official Secrets Act” which meant that it was so amazing that it had to be classified… so classified that it basically couldn’t be worked on. Genius! Whether it would have actually worked any better than NASP’s scramjet is anyone’s guess. In the going on forty years since the RB545 was dreamed up, it obviously hasn’t driven an aircraft to orbit. Or, it seems, off a runway. Like the scramjet, it *might* work, if only the development effort was properly funded and allowed to work through issues, rather than starved and throttled.

The early HOTOL configuration shown here would have taken off using a ground trolley in order to save on landing gear mass. The vehicle was nominally unmanned, though crew and passengers could be installed in a module in the cargo bay, located well aft. One problem the configuration had was substantial center of gravity and center of pressure issues, driven by the long, slim fuselage filled with sloshing and emptying hydrogen tanks. As memory serves, this remained a problem throughout the design lifetime of HOTOL.

The full rez scan of this artwork has been uploaded to the 2022-06 APR Extras folder on Dropbox for APR Patrons and Subscribers.

 Posted by at 11:42 pm
Jun 032022
 

I’ve just made available to subscribers and Patrons at the $11 and up level a mid-1961 Honeywell booklet describing the space projects they were involved with at the time.

While not a detailed technical design document, this illustrated bit of PR is nonetheless interesting as it shows the sort of thing that aerospace companies would produce Way Back When in order to inform and enthuse the public. Modern aerospace companies would probably produce this as a web page or a PDF, which just doesn’t have the same impact. Of course, *this* one is being distributed as a PDF, but moving on…

 

 

If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program. Back issues are available for purchase by patrons and subscribers.




 

 

 

 Posted by at 2:20 pm
Apr 262022
 

The third of three pieces of vintage aerospace concept art – the actual paintings, not reproductions – that I recently procured from ebay has arrived. This is a 1960’s Hughes concept for a “Hot Cycle” Rotor Wing VTOL aircraft. The prior two – a 1970’s Bell AMST concept for a four-turbojet C-130 test aircraft and a 1980 Bell concept for a hovercraft to allow fighters to launch from bombed-out runways – were just able to be scanned on my flatbed scanner. But the Hughes painting was much larger, so I digitized it via photography, resulting in a 10,878X7500 pixel (about 36X25 at 300 dpi) image. Several iterations of the image – the stitched-together final image, and a version that was fade-corrected to make it look more like the actual painting – have been uploaded to a Dropbox folder with the Bell art.

These paintings are currently framed and will be hung on my wall… for a time. At some point my plan is to donate them to a good museum. The Smithsonian NASM is the obvious default, but I’m interested in alternatives. A museum that would *want* these and would protect yet display them would be ideal.

If you happen to see other aerospace concept art on ebay that’s not going for *insane* amounts and you’d like to see it preserved… let me know. I now have four pieces (not counting things like blueprints); not a great collection by any measure, but it’s something.

I am going to continue to work on digitizing this painting. I’ve been trying to find a local flatbed scanner big enough to scan the whole thing all at once; if I can get that done, the results will also be uploaded to the Dropbox folder.

If you’d like access to the folder – and thus the high-rez images, as well as some PDF documentation I’ll be adding – here’s an opportunity to do so. These paintings were not cheap to secure, so there’s a bit of a charge ($25):

 

Procuring these was not cheap, but now they are saved for posterity.

 

If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program. Back issues are available for purchase by patrons and subscribers.




 

 

 

 Posted by at 3:41 pm
Apr 162022
 

D’oh. My “gotta save money” goal just took some substantial hits… I bought some vintage *original* art, the *actual* paintings, on ebay.

Send help.

First: A 1980’s idea for a small unmanned hovercraft to help an F-15 lift off from a damaged runway:

Second: a 1970’s Bell concept for a C-130 with four turbojet engines as a demonstrator for the AMST program:

My credit card just went “WTF are you *doing?*”

Feel free to hit that “tip jar” or subscribe in order to do you part in enabling this sort of financially dubious aerospace history collection and preservation. What I think would be best is to scan the bejeebers out of these then donate them to a good archive or museum.

There’s another much more interesting piece I’m hoping to hear something good on regarding an offer I made.

If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program. Back issues are available for purchase by patrons and subscribers.




 

 

 

 Posted by at 7:05 pm
Apr 122022
 

Just bought on ebay, a print of the Boeing “Space Sortie” vehicle.

So much for my “maybe I should spend less in these difficult times” idea. If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program. Back issues are available for purchase by patrons and subscribers.




 

 

 

 Posted by at 10:10 am
Apr 102022
 

A recent ebay acquisition, this is a lithograph with a photo and color cutaway of the Vought ALVRJ demonstrator vehicle. The Advanced Low-Volume Ramjet was a program that ran from the late 1960s into the 1980’s with the goal of producing a ramjet engine for missile applications, such as air-to-air missiles and the like.

The artwork was scanned at 600 dpi and made available to above-$10 Patrons and Subscribers. If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program. Back issues are available for purchase by patrons and subscribers.




 

 

 

 Posted by at 11:19 pm