Oct 142016
 

Currently on ebay is a single slide, a photo someone took in the 1960’s. It shows a family standing in front of a full-scale mockup of the SV-5,  what became the X-24A. This is hardly an unknown mockup; it has been shown elsewhere many times. But I thought this particular view might be of interest to some. It is shown on the back of a truck for transport, attached to a transition section that would, on the real vehicle, then attach to a launch vehicle such as a Titan II or III.

880469046_o

 Posted by at 7:55 pm
Oct 092016
 

On ebay a little while back were some pieces of art illustrating some Martin Marietta concepts for teleoperated spacecraft. Included was an idea for a Skylab reboost spacecraft to be carried by the Shuttle. The reboost spacecraft would, it seems, be based on a simpler spacecraft to be used for general satellite repair, recovery and reboost.

ebay-skylab-reboost-4 ebay-skylab-reboost-3 ebay-skylab-reboost-2 ebay-skylab-reboost-1

 Posted by at 4:20 pm
Oct 072016
 

A piece of NASA art illustrating a lunar-bound craft equipped with three relatively small nuclear thermal rockets. The payload is a lunar lander, similar in appearance to the “First Lunar Outpost” landers of the early 1990s, dating the art. To my eye this looks a bit dubious from the standpoint of nuking the crew… the reactors aren’t that far from them, what with the rather short hydrogen tank. *Perhaps* this was intended to be sent to lunar orbit unmanned, there to be met by a crew sent via chemical rockets. For lunar missions the utility of nuclear rockets would not be in getting payloads to the destination sooner; three days just isn’t that long, really. The advantage would be in sending *massive* payloads. So a small manned capsule sent chemically and a big heavily loaded lander sent via nukes might well make considerable sense.

ntr-triple

 Posted by at 4:14 pm
Sep 192016
 

There was a time when American auto manufacturers had important aerospace divisions. Chrysler, for example, was responsible for rockets such as the Redstone, Jupiter and the Saturn I and Ib first stage.

In late 1956, Lovell Lawrence Jr, an assistant chief engineer at the missiles division of Chrysler, publicized a concept for a nuclear-powered “flying saucer.” It seems to have been *partially* a reasonably rational concept for a long duration spacecraft for missions to Mars.  It would spin like a frisbee to generate artificial gravity, though the relatively small radius would be likely to produce some harsh Coriolis effects. The saucer would be about 50 feet in diameter and only 6 feet thick.

Where the design goes a bit off the rails is that the performance expected of the craft was insanely impressive. It was a single-stage-to-solar-orbit craft, capable of taking off horizontally from a runway using nuclear-powered jet engines (note: “jet” in this case might mean “rocket.”) The craft would be capable of going from the Earth to Mars in 9 to 12 weeks.

Being that close to an atomic reactor (with a light enough shield to allow the thing to take off) would be a death sentence long before the craft would get to Mars.

After years of trying to research this concept, all I’ve managed to scrape up are three things from Ye Olde internet: two newspaper articles and one cover story from a UFO “fanzine.” I have tried over some years to obtain a copy of the “Saucer News” from August-September 1957 from sites like ebay, but without success. It seems like an original printing, or at least a decent scan, would provide a reasonably good version of the Chrysler saucer art.

saucernews25-1957-aug-sep chrysler-saucer-2 chrysler-saucer-1

 Posted by at 1:28 pm
Aug 232016
 

An early/mid 1960’s concept model of an interplanetary spacecraft using a nuclear fusion powerplant. Back then there was a LOT of faith in the idea of fusion reactors being just around the corner. One very obvious design flaw? No radiators. Any internal-fusion system (or internal-fission, for that matter) would need *vast* radiator surface area.

Details on the photo are unavailable. I originally downloaded this image from the GRIN (Great Images in NASA) website, which has now been closed in favor of a Flickr account that is difficult to search. Feh. If you want the full-rez version *another* Flickr account has it HERE.

GPN-2009-00027

 Posted by at 3:19 pm
Aug 102016
 

Starting in the 1970s and running through much of the 1980’s, the Jet Propulsion Laboratory ran numerous studies of Thousand Astronomical Unit (TAU) spacecraft. These were somewhat akin to Voyager class probes, but with important differences. instead of small RTGs for power, they would use SP-100 class fission reactors, mounted many dozens of meters away at the end of long booms. Located at the center of mass of the system would be a bank of ion engines; the nuclear electric propulsion system would operate for *years* to boost these craft to extremely high speeds. Still, it would take decades for them to travel 1,000 AU from the Sun, many times further than Pluto. There, large optical telescopes would take parallax measurements on distant stars; by positioning numerous TAU craft in every direction, the measurement baseline would be vast, and precise distance fixes could be made for stars on the other side of the galaxy.

A number of TAU designs were examined, but the one shown here in JPL art seems to be pretty representative. These probes would have to be engineered with a high degree of both reliability and autonomy as their main observation missions would only begin something like 50 years after launch. Diagrams of a different design and more information were presented in US Spacecraft Projects #3.

jpl tau

 Posted by at 1:53 pm
Aug 032016
 

A while ago I was asked by another aerospace historian if I had any artwork of the “Dual Keel” version of the Space Station design from the mid/late 1980s. This was a predecessor to the International Space Station (the “Russians” being the “Soviets” at the time) and was to be used not just as an orbiting shack for some basic research, but also as an assembly area for manned missions to the moon and Mars. Turns out I had a fair amount of Dual Keel art. As is the way of things, a lot of that art is moderately poor… scanned from dusty slides, in many cases. Still, it’s what I had. It dawned on me that others might be interested in it, so I put all the images into the same size and format (standard 8.5X11) and made  a PDF out of it, seventy some pages. I have uploaded Part Two to the “APR Extras” Dropbox site into the “2016-08 APR Extras” folder. This is accessible to all APR Patreon patrons at the $4 level and above (if you are such a patron and don’t have access, send me a message via Patreon, I’ll get you fixed up). Part One was uploaded to the “2016-07 APR Extras” Dropbox folder last month.

dualkeelad2

 Posted by at 9:18 pm
Jul 202016
 

Bonham’s just wrapped up another one of their “no you can’t afford these” space history memorabilia auctions. Among the interesting stuff I looked at, sighed over and wished I lived in a world where somehow I was rich enough to afford, there was this item:

The other items listed all have their sales prices listed (like the $269,000 Sputnik model… yow), but this item seems to still only have it’s estimated price of $1500-$2500. My guess is that that means it didn’t sell. And if it didn’t, maybe it’s because it was advertised as being something far less interesting than it actually is. Consider: the description goes thus:

GEODETIC SATELLITE MODEL

Large scale model of a Geodetic Satellite. 37½ inch tall plexiglass pole topped with 16½ inch tall conical satellite with ten 21 inch long folding blue panels.

Employed by the United States Navy, the GeoSat was an Earth observation satellite launched in 1985. The goal of the GeoSat mission was to provide information on the marine gravity field.

Which, yeah, I guess that’s nice, but it’s not really one of the more exciting satellites out there. By the way, here is a geodetic satellite rendering:

And here is the model that was up for auction:

sp-100 model

Are there similarities? Sure. But you know what that model *isn’t* a model of? A geodetic satellite. It’s a model of this:

Yup. That there is the business end of an SP-100 space nuclear reactor.

Now, I don’t know that the model is *really* anything special… the payload it’s attached to is dreadfully small and dull. It’s not like it’s attached to a neutral particle beam weapon or something similarly intriguing, and the SP-100 was hardly a classified program. But still a nuclear reactor powered spacecraft has *got* to be more interesting than a geodetic satellite, yes?

See also:

SP-100 art

This is what happens when people and institutions do not contract with me to vet all their aerospace stuff. Reasonable rates, people!
 Posted by at 4:34 pm
Jul 142016
 

For the past several months Syfy has been in a bit of a programming lull. Prestige shows like “The Expanse” have finished their seasons, and we’re many months from new episodes. Modestly entertaining shows like “Dark Matter” and “Killjoys” have only just started new seasons. Shows like “Footfall: The Series” only exist in alternate universes. So Syfy has had to rely on their tertiary shows to fill the schedule. Of of these has been “Hunters,” a generally “meh” show. Production values are good, acting is… meh. Basic idea is that a few decades ago an alien species crashed to Earth (some trouble on their colony ship, stuck in orbit around Saturn) and assumed human identities; sadly, these aliens are generally kinda dickish, what with slaughtering people and all. So there’s the requisite shadowy government organization tasked with capturing/killing the alien “Hunters.” In the last several episodes it has been clear that the aliens were working on a spaceship of some kind, somewhere off screen.

The show, as I said, is “meh” grade entertainment. Not good enough to watch live, entertaining enough to DVR and watch later, distractedly while preparing supper, working on the computer, cleaning out the litter box, whatever. So finding myself burned out a bit from the current projects I’m plugging away at today, I plopped myself before the idiot box and called up yesterdays episode. Imagine my surprise when *this* is how the show started:

Dsc_4145

This was followed by clips from relatively well-known (among space nuts, anyway) General Atomic films of tests of subscale Project Orion hardware. Static fiberglass models on up to the “Hot Rod.”

Dsc_4149

As it turns out, the ship the aliens have been building in the northern Mexican desert is an Orion. The characters describe Project Orion specifically, by name; and while the cataclysmic apocalyptic results of a small Orion launch are overblown, they otherwise don’t *totally* screw up the description.

The design of the ship… well, it’s far from perfect, but it’s actually one of the more clearly-Orion nuclear pulse vessels I’ve seen on scree. Whoever designed it clearly had access to some Orion design info. Perhaps little more than a Google image search might pull up, but still, they did a better job than anyone else can think of offhand. The screenshots below were taken via the expedient of pointing a digital camera at the TV screen.

Dsc_4151

Dsc_4153 Dsc_4164

One of the computer interfaces shown on the ship – everything is in English, which is odd given that the ship was built by and for aliens – gives a few diagrams. Shown here is a schematic of a very recognizable pulse unit.

Dsc_4167

I was of course looking forward to see how well they showed the vehicle in flight. Sadly, that did not occur.

Dsc_4168

Interesting timing, given my Space Show interview just two days ago. One of the main subjects I was thinking I would cover on the show was the depiction of Orion/NPP on film and TV, but obviously we got nowhere near that subject. Oh well…

 Posted by at 1:42 am