Apr 202021
 

Another Boeing concept for the recovery of an S-IC stage. This used large fins with deployable drag brakes to stabilize the stage nose-down, parachutes to slow descent and sizable rocket motors for terminal braking just before splashdown. Additional rockets arrest the stages “collapse” to the side.

Would a Falcon 9-style landing have been better? Sure. But that wasn’t going to happen with 1960’s technology. A splashdown, recovery and refurbishment would have been expensive, but likely not as expensive as a brand new stage, and as has been the case with Falcon 9, as time goes by and experience grows, everything would get better and cheaper.

 

 Posted by at 9:04 pm
Apr 042021
 

The Trident I and Trident II were fundamentally different missiles, despite the name.

Somewhere around here I have a technical paper on turning the Trident II into a satellite launcher. Been meaning to work that into an issue of US Launch Vehicle Projects one of these years.

 Posted by at 10:29 pm
Mar 312021
 

Just released, the March 2021 rewards for APR Patrons and Subscribers. Included this month:

Diagram/art: a large format scan of an artists concept of the XC-14. This was printed with a large number of signatures; they seem to be Boeing engineers.

Document 1: “Project Hummingbird.” An FAA document summarizing the characteristics of STOL and VTOL aircraft circa 1961, including bogh built and proposed types. This was scanned from a clean original!

Document 2: “The Thor Missile Story.” Old, old, incredibly old school media… a film strip propaganda piece about the statues of the Thor IRBM.

CAD diagram: the WWII era German DFS 228 rocket powered high altitude recon plane, proposed operational version.

 

 

 

If this sort of thing is of interest, sign up either for the APR Patreon or the APR Monthly Historical Documents Program.




Because I forgot to mention the January and February rewards… subscribers/patrons got these (new subscribers can order them as back issues):

January 2021: Titan IIIC/IIIM booster rockets; CAD diagram of Post-Saturn concepts; a Convair Heavy Bombardment Airplane brochure; a fractional XF-103 mockup review and technical description; a fractional Westland paper on VTOL; a General Dynamics report on a  proposed turboprop transport for Saturn stages.

February, 2021: An Aerion SST brochure; a Lockheed SST diagram; Dornbergers report on a commercial rocket powered airliner (scanned from a clean vintage copy); an early Convair jet flying boat bomber brochure; a CAD diagram comparing General Atomics’ ten-meter Orions for the USAF and NASA.

 Posted by at 4:12 pm
Mar 242021
 

An Aerojet illustration of an interceptor designed to take out targets such as incoming nuclear warheads by the simple expedient of ramming into them at several kilometers per second, the old “hitting a bullet with a bullet” cliche.

 

 Posted by at 1:05 am
Mar 192021
 

A video on the Douglas ICARUS/Ithacus, a 1960’s concept for a rocket vehicle to lob 1200 Marines anywhere on the planet in 45 minutes:

This video is based in large part on the article I wrote and illustrated in Aerospace projects Review issue V2N6, AVAILABLE HERE.

Why not sign on for the Aerospace Projects Review Patreon, why not? You’ll not only help make sure that this sort of research is done, you’ll get a fat stack of monthly rewards int he form of aerospace documentation.

 Posted by at 9:25 am
Mar 072021
 

A video (made with a few contributions from yours truly, and, yes, attributed as such within the video) describing the 1970s Boeing design for an ICBM-carrying airliner, the MC-747. This is described and illustrated in US Bomber Projects issue 21, AVAILABLE HERE.

An interesting idea to be sure, but an unsafe one. Were one of these aircraft to go down for whatever reason, the results would be No Damned Good. Almost certainly the warheads would not go nuclear, but it’s always possible that the combo of the crash, the burning jet fuel and the solid rocket propellant merrily burning away might cause the chemical explosives in the warheads to go off, potentially scattering plutonium all over hither and yon. Worse still would be if the plutonium got sprinkled with the solid propellant and the plutonium combusted, scattering not just chunks and bits of plutonium, which would be bad enough, but clouds of plutonium oxide or plutonium chloride.

Perhaps more dangerous would be the Soviet reaction. They’d be in a constant state of freaking out every time one of these took to the sky, and they probably would have difficulty telling an MC-747 from an E-4 or a civilian 747. And, of course, they’d have to have their own. the AN-124 would be the logical choice for an ICBM carrier, and chances are good they’d do as good of a job with it as they did with Chernobyl, the Kursk or the Polyus.

 Posted by at 12:57 pm
Mar 052021
 

An Aerojet concept for a boost-phase ICBM interceptor.

This would be a space-based anti-missile system composed of two high thrust solid rocket motors and a kill vehicle composed of a substantial set of optics, some impressive late 1980’s computers and most likely a hydrazine monoprop divert system. The missile would be meant to physically impact an ICBM while still being lofted by the first stage; this is an bigger, slower and brighter target than the later, faster, smaller stages and warheads, but you have to be *fast* to reach out and tag a missile in the first moments of flight.

 

 Posted by at 5:35 pm
Mar 012021
 

From Polaris through Poseidon to Trident D-5:

Every one of those was proposed for alternate roles, from truck-towed and truck-launched land based strike missiles to air-launched and ground-launched satellite boosting systems. And they very likely *could* have done that. But they are just not really well suited for any role but sea launched ballistic missile due to the somewhat tricky propellants they use… high energy propellants so they can  function adequately while still being able to fit in a small submarine. But for above-ground systems, they’d be somewhat dubious. The environment within a submarine is pretty consistent. For a missile stored in a warehouse and then hauled aloft by an airplane? The thermal and vibration environments will be highly variable.

 Posted by at 4:30 pm
Feb 272021
 

This photo has popped up online before, but usually in pretty crummy resolution. It’s taken from “Aerojet – The Creative Company” and shows a mockup for a Titan-derived first stage booster rocket. It has double the engines of the standard Titan core stage, either two or four engines depending on how you want to count the LR-87 engines (one set of turbopumps, two combustion chambers) married to a 15-foot diameter core. This is described as a booster designed to loft the Zenith Star space-based laser weapon test system (the ZS was described and illustrated in US Spacecraft Projects #1). Documentation on this specific booster has always been somewhat lacking, though there have been quite a number of Large Diameter Core Titans designed by Aerojet and Martin over the years.

Higher rez scan in the 2021-02 APR Extras Dropbox folder for patrons/subscribers.

 

 Posted by at 8:26 am
Jan 312021
 

Two pieces of (presumably McDonnell Aircraft) artwork depicting the Mercury capsule:

These were procured from eBay thanks to the contributions of Patrons and subscribers. They have been made available at 300 DPI to all $4/month patrons/subscribers in the 2021-02 APR Extras folder at Dropbox, and at 600 dpi directly to all patrons/subscribers at more than $10/month. If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program.




 Posted by at 11:10 pm