Hey! Anybody hereabouts interested in unbuilt variants of the North American B-70 bomber? I know a guy who can hook you up:
https://media.defense.gov/2020/Nov/23/2002540204/-1/-1/1/B-70%20VARIANTS.PDF
An official publication from the AFMC History Office, edited by noted aerospace author Tony R. Landis. Recommended.
Construction is underway of an unmanned rocket-powered aircraft to be carried by the Stratolaunch “Roc” aircraft. The Talon-A is supposed to be something like the proposed X-24C… a lifting body hypersonic platform that can have various experimental units – including scramjets – attached to it. The Roc would be capable of carrying three Talon-A’s at a time, though it seems unlikely that there’s a really good reason to do so.
Rewards have just been posted for APR Patrons/Monthly Historical Documents Program subscribers. Included:
1: “Manned Aerodynamic Reusable Spaceship (MARS) Vehicle Design” a 1962 Douglas report covering a single stage “orbital airplane” of impressive size and design.
2: “Pretest Information 3.3 Percent 624A Aerodynamic Heating Investigation, NASA Langley Unitary Plan Wind Tunnel.” A 1963 Martin report describing a test of the Titan IIIC/Dyna Soar configuration.
3: Official XB-70 General Arrangement Diagram
4: CAD diagram: a 1974 Lockheed concept for a subscale Space Shuttle Orbiter Mach 9 flight test model, to be dragged behind a YF-12C and booster by an “Avanti” rocket (modification of the D-21B’s booster) with an internal SRAM motor in the orbiter.
If this sort of thing is of interest to you, either because you’d like to obtain these documents or you’d like to help preserve aerospace history (or both) please consider signing on to either the APR Patreon or the APR Monthly Historical Documents Program.
With the recent news of the possible discovery of the signs of possible life in the upper atmosphere of Venus, there is renewed interest in some quarters in the idea of atmospheric probes to sample the air and clouds directly. The most practical way to do this in something resembling a long term is with a balloon. With Venus’ carbon dioxide atmosphere, something usually useless as a lifting gas like nitrogen or oxygen could be used, but hydrogen or helium would work even better there than above Earth.
Such probes have been proposed for a *long* time. Here is art of Martin Marietta design for a Venus balloon from more than fifty years ago.
Martin studied a Buoyant Venus Station as far back as 1967. Included in the study were the instruments to be carried, including “drop sondes,” expendable instrument packages that would be dropped from the station to radio back data from lower down:
This set of models was recently sold on eBay. It depicts a proposed concept for extending the utility of Apollo hardware… in this case, the Command Module and the Ascent Stage of the Lunar Module, by using them in Earth or Lunar orbit in conjunction with a small space laboratory. The Lunar Module would be used as a little space lab of it’s own, with a bolted-on telescope… this idea transformed into the Apollo Telescope Mount on Skylab, which began life as a modified LM. This probably dates from 1965-66. The purpose of the lab was to provide living space for the crew of three, because missions were contemplated lasting several months, providing detailed examination of the Earth or moon. Scientifically useful to be sure, but were the crew packed solely into the CM and LM for that period they’d likely kick the walls out.
From April 1959. Boeing won the competition to build the Dyna Soar with a desing that looked a lot *unlike* the Dyna Soar they actually started building; ironically, Martins design from December 1958 (working with Bell Aircraft) was far closer to the final Dyna Soar in configuration.
Once again Patreon seems to be becoming unstable. So I’ve got an alternate: The APR Monthly Historical Documents Program
For some years I have been operating the “Aerospace Projects Review Patreon” which provides monthly rewards in the form of high resolution scans of vintage aerospace diagrams, art and documents. This has worked pretty well, but it seems that perhaps some people might prefer to sign on more directly. Fortunately, PayPal provides the option not only for one-time purchases but also monthly subscriptions. By subscribing using the drop-down menu below, you will receive the same benefits as APR Patrons, but without going through Patreon itself.
Given the craziness going on, I decided that what the world clearly needs is something consistent. Like, say, me posting one piece of aerospace diagram or art every day for a month or so. So I’m going to do that. But in order to keep people from getting too complacent, I’m posting some of them on this blog, some on the other blog. Why? Because why not, that’s why. I’m slapping the posts together now and scheduling them to show up one at a time, one a day. Given the pandemic… who knows, this little project might well outlive *me.*
So, check back in (on this blog or the other) on a daily basis. Might be something interesting.
Cutaway artwork of the Douglas D-558-I Skystreak, a transonic research plane designed and built in the mid 1940’s for the US Navy. Like the contemporary Bell X-1 rocket plane, it had straight wings; but unlike the X-1, it had a turbojet engine and could take off under its own power. It could only get supersonic in a dive. Douglas followed the D-558-I with the D-558-II Skyrocket, a very different and much more advanced aircraft that could fly much faster.
The full-rez scan of this cutaway has been made available to all $4 and up APR Patreons and Monthly Historical Document Program subscribers. It has been uploaded to the 2020-03 APR Extras folder on Dropbox for Patreons and subscribers. If interested in this piece or if you are interested in helping to fund the preservation of this sort of thing, please consider becoming a patron, either through the APR Patreon or the Monthly Historical Document Program.