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 4:15 pm
Sep 272016
 

Some images copied out of the presentations today. It clearly has some heritage back to the Delta Clipper, at least in inspiration. I’m unconvinced, though, that this is a completely serious engineering concept. At the very least it seems to be jazzed up for some wow-factor; that huge window, for example, is a structural nightmare and the passenger compartment seems to be one breachable pressurized volume. Blow out one window and the whole thing will depressurize.

Still, it’s good to see big-thinkin’. But I really wish they would have somehow vetted some of the questioners after Elon’s presentation… about a third of ’em were either idiots or just there to flack some product or other.

2016-09-27-203311 2016-09-27-202604 2016-09-27-203642 spacex-interplanetary-07 spacex-interplanetary-05

 Posted by at 8:13 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. Anybody has more on this, I’m interested.

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

 Posted by at 11:29 pm
Sep 122016
 

Jeff Bezos of Blue Origin has described a new rocket his company is working on , the “New Glenn.” It’s kinda big:

new-glenn-large2

The “New Glenn” will be 27 feet in diameter (close to the Shuttle External Tank, it seems), 270 feet tall in a two-stage configuration and 313 feet tall in a three stage configuration. The first stage is recoverable, landing vertically under rocket power. It will have seven BE-4 engines burning natural gas and oxygen, producing 3.85 million pounds of thrust. The second stage uses a single BE-4 engine with an increased expansion ratio. The third stage uses a LOX/LH2 BE-3 engine.

The article says that Bezos has claimed that the rocket will fly “within the decade.” If that means by the end of 2019, that’s pretty ambitious.

 Posted by at 10:00 pm
Sep 052016
 

Produced by Bell Aerospace around 1960 as a promotional item was this “ticket” for a flight from New York City to Melbourne, Australia. The aircraft shown was a two-stage hypersonic passenger transport; the first stage was essentially a supersonic transport equipped with turboramjet engines; it carried on its back a rocket powered passenger spaceplane. At the time it was pushed by the likes of Walter Dornberger, who had previously publicized a two-stage all-rocket powered hypersonic transport. There was some link between this design and the Dyna Soar program, but it is unclear just how involved the engineering was on the HST. Artwork was produced and a good display model, but it’s hard to tell if it went any further than that.

bell hst ticket 2 bell hst ticket 1

I have uploaded high-rez scans (600 dpi) to the 2016-09 APR Extras folder on Dropbox. This is accessible to all APR Patreon patrons at the $4 level and above.

 Posted by at 1:11 am
Sep 032016
 

Several days ago word hit of someone with six file boxes of their fathers stuff, wondering what to do with it. Not an unusual occurrence. But in this case, the father was an important engineer  at North American Aviation, worked on the XB-70, B-1 and Shuttle, and the files all related to that. In the end, the archive wound up on Craigslist, and sold shortly afterwards. It is now being shipped… to me.

I would not have been able to afford the archive – never mind the shipping costs – on my own. However, by working with the patrons on the APR Patreon , we were able to pool funds so that the total cost per person is *trivial.* When the archive gets here – all 300+ pounds of it – I will go through every single page and catalog it; the best stuff will be scanned and, barring ITAR & classification issues, all of the crowdfunders will receive the complete set of high-rez scans. And then when I’ve gleaned from it what’s worth gleaning, it will be donated to an appropriate archive… the Smithsonian, the SDASM, the National Archives, Edwards AFB, whatever seems best in the end.

The door to sign up for this crowdfunding project is now closed. It followed shortly on the heels of a similar project that scored an admittedly much smaller but definitely fascinating  collection of F2Y Sea Dart documentation and diagrams, including much about operational follow-on attack aircraft meant to operate from ships and subs; and a similar archive that was crowdfunded a year or two back that scored a whole bunch of 2707 SST stuff. I’ve grown sick of seeing amazing stuff appear on ebay and then vanish into a black hole, never to be seen by anyone again; this way, aerospace history is preserved and shared.

If you’d like to be involved in this sort of thing, sign up for the APR Patreon and you’ll not only get the monthly aerospace goodies that comes with membership, but you’ll also be able to get in on these crowd funding efforts. You’ll save aerospace history, get a bunch of amazing stuff, and not have to spend a whole lot to do it.

 Posted by at 8:05 pm
Aug 302016
 

In the previous installment I worked out what I think the diameter of the individual modules is on the very large Lockheed Space station in this piece of art:

At the time I devoted my efforts to diameter and just kinda half-assed the module length. Now behold, in this latest installment of Don’t You Have Anything Better To Do Theater as I work out the module length with greater precision and less guesswork, using image processing programs (specifically Paint Shop Pro) and CAD programs (specifically Rhino 3D).

Continue reading »

 Posted by at 3:15 pm