Nov 142022
 

A Boeing rendering of an advanced fighter from the late 70’s/early 80’s. This design features variable sweep wings and inlets mounted over the shoulders, reminiscent of the Boeing Model 818 design proposed in the early 1960s for the TFX program (won by General Dynamics, resulting in the F-111… check out “US Supersonic Bomber Projects Vol 1” for more on that). There are four weapons mounted conformally to the underside. All in all it looks like an early attempt at a *somewhat* stealthy aircraft… not true stealth, but a substantial reduction in radar return, specifically from ground-based radar. This would seem to indicate that the aircraft was intended to generally fly low and to serve in a strike capacity.

The configuration is broadly conventional, apart from the inlets. The twin exhaust nozzles are 2D vectorable, reducing IR signature and increasing agility and short field takeoff performance. The twin tails are canted outboard, probably to knock out the “corner reflector” problem for radar returns. This was likely intended to be something of a replacement for the F-111 rather than the next air dominance fighter like the F-15.

The full rez scan has been uploaded into the 2022-11 APR Extras folder on Dropbox for $4 and up Patrons/Subscribers.

 

 

 Posted by at 11:11 pm
Nov 012022
 

The October 2022 rewards are available for APR Patrons and Subscribers. This latest package includes:

Large format art: A Bell Aerospace painting of the D188A VTOL fighter/bomber

Document: “Standard Aircraft Characteristics – Convair Class VF Seaplane Night Fighter (SKATE)” diagrams and data for seaplane jet fighter

Document: “21St Century Aerospace – The 20th Century Challenge,” General Dynamics presentation, late 80’s about hypersonics/NASP. From photographs.

Document: “Prototype X-14 VTOL Aircraft,” Bell Aerospace presentation, 1971, on the “SeaKat” operational naval VTOL. From photos, but art and diagrams were also scanned for clarity.

CAD Diagram ($5 and up): XB-70 Valkyrie forward fuselage configuration

 

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with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program.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 1:30 am
Oct 212022
 

Three magazine advertisements from 1960, depicting the East German Type 152 jetliner (which would have been a *fantastic* jetliner in the late 1940’s), the Convair F-106 and the Fiat G91 T jet trainer.

 

The full-rez scans of these ads have been uploaded into the 2022-10 APR Extras folder on Dropbox, available to all $4 and up APR Patrons/Subscribers. If you would like to help fund the acquisition and preservation of such things, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program.




 

 

 Posted by at 1:29 pm
Oct 092022
 

The ad below was published in magazines in 1982, showing a cutaway illustration of the then-fancy new B-1B bomber, recently rescued by the Reagan Administration. The background is here depicted as a rather dull gray, but the physical ad has a shiny metallic coating, which must have cost a small fortune at the time.

 

The full-rez version of this scan has been uploaded into the 2022-10 APR Extras Dropbox folder. It is available to all APR Patrons/Subscribers at the $4/month level and above. If you would like to help fund the acquisition and preservation of such things, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program.




 

 Posted by at 1:11 am
Sep 162022
 

An Aerojet diagram comparing the Trident I (C-4) and Trident II (D-5) submarine launched ballistic missiles, showing the significantly larger size of the latter

The full-rez version of this scan has been uploaded into the 2022-09 APR Extras Dropbox folder. It is available to all APR Patrons/Subscribers at the $4/month level and above. If you would like to help fund the acquisition and preservation of such things, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program.




 

 Posted by at 10:49 pm
Jul 232022
 

Shortly after WWII the US Air Force funded studies on long range missiles, wit the intent of incorporating what had been learned from the Germans. One design, the 1947-vintage North American Aviation model 704, was derived (through numerous steps) from the German A-4 (V-2), but made longer range by way of adding wings and two ramjet engines. This would eventually evolve into the “Navaho” intercontinental cruise missile; an impressive but ultimately doomed system that used a large liquid rocket booster to shove a large Mach 3+ ramjet aircraft into the sky. In the end, ICBM were easier and cheaper.

The full rez scan of the diagram has been made available to APR Patrons/Subscribers at above the $10 level.

 

 Posted by at 12:40 am
Jul 032022
 

A 1970’s Boeing concept for a variable geometry supersonic transport. Once the Boeing 2707 was cancelled in the wake of the oil crisis, any further work on supersonic transports focused heavily on “how do we make this more fuel efficient.” One approach was to go back to variable geometry, which had been dropped from the SST program when the 2707-200 was replaced with the 2707-300. The swing-wing of the -200 worked wonders for the low speed performance of the aircraft, but played hell with cost and weight, enough so that the -300 had a fixed modified delta wing.

The solution shown below linked a few technologies. One concept that showed promise was the “oblique wing,” as tested on the AD-1. A single-piece stricture connected to the fuselage at a single pivot point; much lighter and simpler than a traditional two-pivot swing-wing. With sufficiently rigid structures – think “carbon fiber” – the forward-swept portion could remain reasonably flat even at high speed. But this concept went one step further and linked *two* fuselages to not only a single oblique wing, but also an oblique tail. This would put the “aft” fuselage behind the shock wave shed off the nose of the “forward” fuselage, greatly reducing drag. You’d have the capacity of two SSTs for the operating cost of little more than one. Neat idea… very complex. I’m not sure if it made it much further than preliminary wind tunnel testing.

Full-rez scan uploaded to the 2022-07 APR Extras folder.

 Posted by at 4:37 pm
Jul 012022
 

Recently APR Patrons/Subscribers and I were able to successfully crowdfund the purchase of a lot off ebay that included a few folders of vintage lifting body work. The chief prize from the lot was a *giant* blueprint of a “GTV Structure,” a manned Model 176/ FDL-7 lifting body test vehicle (“GTV” was not explained, but I suspect it means something like “Glide Test Vehicle,” designed to be dropped from an NB-52). Scanning of the lot is underway; the crowdfunders now have access to the blueprint in several forms (full size, halfsize; full color, grayscale).

 

If you would like to help fund the acquisition and preservation of such things, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program.




 Posted by at 6:46 pm
Jun 302022
 

I’ve just made the June 2022 rewards available for APR Patrons and Subscribers. This latest package includes:

Large format diagram: “X-15 Access Doors.” A North American Aviation diagram from 1956 showing all the openable panels on the port (left) side of the fuselage

Document: “Harpoon Coastal Defense System:” McDonnell Douglas brochure on a truck-launched anti-ship missile

Document: “Harpoon for Fast Patrol Boats:” McDonnell Douglas brochure on anti-ship missiles for small ships

Document: “Shorts Skyvan:” small brochure about the boxy cargo aircraft

Document: “VTOL Design – Turbojet Configurations” Northrop paper on VTOL fighters, mostly a historical review but with basic layouts for designs up to Mach 3

Document: Turbofan propaganda. A number of brochures and data sheets and such on turbofans and turbojets… PW4000, F100, JT9D-7R4, J57.

CAD diagram ($5 and up): IM-99B BOMARC surface to air missile general arrangement

 

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 11:35 pm
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 8:22 pm