Aug 162019
 

Around three years ago I posted some rather cruddy images of a saucer-shaped nuclear-powered spacecraft that the Chrysler corporation drew up in 1956. At this time a manned spacecraft was a perfectly normal sort of thing for Chrysler to design; their aerospace division was responsible for the Redstone missile and the Saturn I first stage. One of the images was a small scan of the cover of the August-September 1957 issue of “Saucer News.” I finally managed to score a copy of this “fanzine”on ebay a while back and have scanned the cover at high (600 dpi) resolution. The image quality is a bit regrettable, but what can you expect from a 1950’s UFO magazine.

As always, if anyone might happen to know anything more about this design, I’m all ears. Chrysler long ago got rid of their aerospace division and whatever archive it might have had.

I have uploaded the full resolution scan to the 2019-08 APR Extras Dropbox folder, available to $4 and up subscribers to the APR Monthly Historical Documents Program.

 Posted by at 1:46 am
Aug 152019
 

One sizable document I’ve scanned for preservation is a Rockwell presentation package from October, 1985, showing a large number of space programs that the company could capitalize on. These included everything from minor mods to the Space Shuttle to major changes… stretching the orbiter, stretching the tank, adding additional boosters. Heavy lift boosters to put SLS to shame; heavy lift SSTOs; small experimental spaceplanes; manned military spaceplanes; space-based weaponry; space stations; space based nuclear power.  Figured this stuff might be of some modest interest. So why not, I’ll post little bits of it from time to time.

Continue reading »

 Posted by at 4:13 am
Aug 042019
 

In 1964 Lockheed put forward a design in the US Army’s Advanced Aerial Fire Support System  (AAFSS) program that would eventually win and become the AH-56 Cheyenne. But Lockheed was not alone in tendering a proposal: Sikorsky entered their S-66 design.

Both helicopters would have been advanced and fast. Lockheed made the AH-56 fast by adding a pusher prop to the tail, just aft of the conventional anti-torque rotor. But Sikorsky went a slightly different route: the S-66 used the “rotaprop” tail. This combined anti-torque duties with forward thrust in a single mechanism… a single somewhat complicated mechanism that could turn the sideways-thrusting anti-torque rotor 90 degrees to point it aft, providing forward thrust. This would have decreased drag and potentially decreased weight, but at added technical risk compared to the relatively simple solution of just adding a dedicated pusher prop. In late 1965, the Army decided that the risk was too high, and went with Lockheeds design.

The S-66 design got a fair amount of publicity during the contest, but I’ve never actually run across the proposal documentation or design diagrams. A few photos of a display model and a single cutaway drawing are presented HERE. Below are some magazine illustrations of the S-66. It would have been an impressive helicopter had it been built and if it had been successful, looking not unlike a sleeker version of the Mil 24 Hind attack helicopter.

 

 Posted by at 4:41 pm