Aug 212020
 

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 Posted by at 1:00 am
Aug 172020
 

From 1965, two Boeing-Vertol Heavy Lift Helicopter concepts in model form, to scale with a Chinook (at far right). At far left is the Model 227 which carried loaded internally; in the middle is Model 237, designed as a flying crane. note, though, that even though the Model 237 is designed to carry payloads externally the vehicle is so large that the reduced fuselage still has room for a substantial passenger load, windows and all.

 Posted by at 11:27 pm
Aug 132020
 

One of the main purposes of the Monthly Historical Documents Program/APR Patreon is to get rare aerospace items from eBay. These items are then made available to subscribers/patrons via monthly votes and catalogs.

Below are some of the items I’ve recently paid for (though not as yet received). If you are interested in getting high-rez scans and/or helping me save these sort of things for future generations (as well as keeping my cats in food and litter), please consider signing up for the Monthly Historical Documents Program or the APR Patreon.

 Posted by at 11:46 pm
Jul 312020
 
Rewards have just been posted for APR Patrons/Monthly Historical Documents Program subscribers. Included this time:
1) An early (1969) NASA study of possible Space Shuttle configurations
2) A 1991 Strategic Defense Initiative Office presentation/transcript on the SDI program
3) A good, clear general arrangement diagram of the North American F-107
4) A CAD diagram of the late 1950’s Convair “Landing boat” that often appeared in presentations (art and models) from Krafft Ehricke
If you are a paid-up Patron/Subscriber, you should by now have received a message with a link to your rewards. If you haven’t, let me know.
 Posted by at 7:57 pm
Jul 272020
 

In 1964 Fairchild Stratos pitched a number of concepts for converting aircraft into carriers for Saturn rocket stages. One idea was a highly modified Convair B-36; this concept was illustrated in US Transport Projects #4, available HERE. Another was to convert a Lockheed Starliner, the final form of the venerable Constellation line of passenger airliner. This was not as massively modified as the B-36. Here, the Fairchild M-536 had a large aerodynamic “pod” was added to the top that would fit a S-IV stage. The fuselage was lengthened by 15 feet and the central vertical stabilizer was extended.

 

 Posted by at 9:21 am
Jul 222020
 

An illustration from a 1964 Boeing report on Saturn V first stage recovery and re-use. A number of concepts were studied, from balloons to parachutes. This particular one used parachutes to slow the stage and solid propellant retro-rockets in the nose for terminal braking, doing something akin to Falcon’s “hoverslam” just before splashdown. The forward LOX dome in the concept would be structurally strengthened to survive the impact. After the initial splash, rockets would be used to tip the stage over in a particular direction… and then more, bigger rockets would be used just before the stage fell over to keep it from hitting too hard.

Another concept was to use a design that would blow off the LOX tank forward dome before impact. The stage would thus hit the water like an inverted cup. As the water compressed the air within the LOX tank, blowout doors at the “bottom” of the tank would, well, blow out, giving the compressed air somewhere to go. This would serve as a pneumatic shock absorber for the stage, but it would pretty much trash the LOX tank.

 Posted by at 6:06 pm
Jul 142020
 

In 1963-64, NASA was looking forward to a very bright future. Moon landings within a handful of years, a serious space station or two in the early seventies, manned missions to the vicinity of Mars and/or Venus probably by the early eighties, manned Mars landings not long after. Moon bases, Mars based, nuclear rockets, missions to the asteroids and the moons of Jupiter… in 1964, the rest of the 20th century must’ve looked *fantastic.*

In order to pull all that off, it was clear that NASA would need to launch a *lot* of astronauts. Consequently, a request for proposals went out to the aerospace industry to design the capability to do just that. Boeing, North American, Martin, Lockheed… a great deal of interest was shown and work accomplished. One design produced is illustrated below, a Lockheed design for a two-stage fully reusable spaceplane capable of transporting ten tons of payload or ten passengers to an orbiting space station. The booster stage had a cockpit about where you’d expect; the spaceplane, conversely, had an offset spaceplane so that the crew would have *some* sort of forward view during landing. Both stages used advanced rocket engines; the first stage also had turbojets to get it back to the launch site. As with all pre-Shuttle designs, estimates of turnaround time and minimal launch cost are impressive and a bit depressing in just how fabulously optimistic they were.

An earlier three-stage concept was shown in US Launcher Projects #5.

The future looked bright. And then… LBJ.

 Posted by at 6:30 pm