PDF Review: A Whole Bunch of Enola Gay Photos

Feb 282020

If you like the aircraft that applied atomic boot to Imperial Japanese ass – and who doesn’t – then the Smithsonian institution can hook you up. Not only do they have the famed Enola Gay on display, they also have a bunch of photos from 1945 up to more recent restorations available on their website in the form of a couple PDF collections. If you are building a B-29 model or are jsut interested in the B-29 in general or the Enola Gay in particular, this is a heck of a trove.

The first one is 419 pages (313 megabytes), with a lot of photos from what looks like the fifties to the nineties as the Enola Gay was trucked around and variously restored:

https://airandspace.si.edu/webimages/collections/full/A19500100000DOC20.pdf

The second is 318 pages (77 meg) and seems to be detail photos (mostly of pretty much individual components) from a restoration:

https://airandspace.si.edu/webimages/collections/full/A19500100000DOC06.pdf

A number of the photos can be viewed – thought not readily downloaded – here:

http://collections.si.edu/search/results.htm?fq=online_media_type%3A%22Full+text+documents%22&q=enola

Support the APR Patreon to help bring more of this sort of thing to light! Alternatively, you can support through the APR Monthly Historical Documents Program.

Possibilities of New Business Growth: Nuclear/Microwave Space Power Systems

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Dec 022019

By 1985, the Solar Power Satellite was essentially dead, killed off by the plumetting price of oil. But the technology developed for it was still valid, and Rockwell thought there might be a use for microwave power transmission systems. Their idea here was to use a space-based nuclear reactor – apparently something along the lines of the SP-100 – to generate electricity and then use SPS-derived microwave beaming tech to send that power to distant “customers” such as space stations and satellites. This would permit the customers to basically have nuclear power, but without the risks of having a nearby radiation source. The receiver would be much lighter than a PV array in terms of construction, and vastly more efficient, since all the energy coming in is of a single fixed frequency. A space station could presumably have a power receiver in the form of a mesh “net,” perhaps a single sphere a few meters in diameter at the end of a modest mast, capable of capturing dozens to hundreds of kilowatts of clean electrical power. This would lower the cost and mass of power systems compared to PV arrays… and it would greatly reduce the drag produced by those giant sails.

Now Available: US Bomber Projects #22, US Transport Projects #09

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Sep 042019

US Bomber Projects #22 and Transport Projects #09 are now available.

US Bomber Projects #22

Cover art was provided by Rob Parthoens, www.baroba.be

US Bomber Projects #22 is now available (see HERE for the entire series). Issue #22 includes:

GD/NASA Mach 5 Cruise Waverider: A 1990’s design very much like the “Aurora”
NASA SR-2P Dash-On-Warning: a vertically launched ICBM carrier
Republic MX-773B-2: a two-stage ramjet surface-to-surface missile
Convair Subsonic Nuclear Carrier Based Aircraft: A miniature naval NX-2
Consolidated Vultee “Parallel Staged Operational Missile:” an unusual early configuration for the Atlas ICBM
Convair MX-1626: an early B-36-carried design leading to the B-58
Boeing B-52X: a trie of layouts for four-engined B-52s
Boeing Model 988-122/123: A highly maneuverable stealthy flying wing

USBP #22 can be downloaded as a PDF file for only $4.25:

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Don’t forget to pick up the previous issue, US Bomber Projects #21…

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Also available:

US Transport Projects #09

Cover art was provided by Rob Parthoens, www.baroba.be

US Transport Projects #09 is now available (see HERE for the entire series). Issue #09 includes:

Convair 58-9 SST: A design fora preliminary low-capacity test SST
Boeing Model 757-3150: An important step in the development of the 747
Convair Nuclear Powered GEM Aircraft Carrier: a fast long-range strike carrier
Aero Spacelines “Pregnant Princess:” A jet-propelled Saturn rocket carrier
Seversky Executive: A 1930’s design for a prop-powered “business jet”
Williams International V-Jet: A 1980’s concept for a small executive transport
Lockheed L-152-15: A very early jetliner
Lockheed Martin 777F-sized Hybrid Wing body: A very recent large and efficient cargo transport

USTP #09 can be downloaded as a PDF file for only $4.25:

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Don’t forget the previous issue, US Transport Projects #08…

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Chrysler saucer, again

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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.

Rockwell: “Possibilities for New Business Growth,” 1985

hypersonic, launch vehicles, nukes, research, rockets, space shuttle, space station, spacecraft, spaceplane 3 Responses »

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.

SP-100 sketch

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Jul 052019

A sketch of the 1980s/90s SP-100 space-based nuclear reactor, designed to provide 100 kilowatts of electrical power continuously for years on end. It would have been just the thing for applications where solar panels would not have been practical, such as deep space probes or military systems that need to be somewhat maneuverable. One might thing that replacing vast PV arrays with a small reactor would have made the satellites less visible… and on radar and likely visible light, that’s probably true. but that reactor and its radiators would have been quite visible in infra-red, apparent to any IR sensor pointed int its general direction. The sketch below shows not only the tests and progress that had been done on the SP-100, but also a conceptual payload of an undefined sort. It seems to be festooned with sensors.

Cruise Missile propfan

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Jul 042019

Someone is selling a contractors model of an engine for a cruise missile on ebay. The engine is an unducted aft fan design. This type of engine was proposed for use on jetliners; it provides fuel efficiency benefits but in the end the brain-melting noise it put out doomed the concept. Not only did it bother people, it also tended to buzz the bejeebers out of the aircraft structure. In the end very high bypass conventional turbofan engines proved capable of doing the job. Noise, of course, would not have been much of an issue for a cruise missile, but since this design was put forward (circa 1989) the US has not fielded any new major cruise missiles.

Note:”TCAE /GEAE” likely stands for Teledyne Continental Aviation and Engineering / General Electric Aviation Engines. Teledyne CAE was known as such between 1969 and 1999, an unhelpful 30-year span.

Vtg USAF TCAE/GEAE Propfan Engine Cruise Missile App 1/5 Scale Contractor Model

Dragonfly: Drone to Titan

future projects, nukes, spacecraft, VTOL No Responses »

Jun 272019

NASA has announced that the next planetary mission will be a flying drone probe for Titan. This should prove interesting, thought it would b best if instead of sending one helicopter, they put the things into mass production and sent a *lot* of them to Titan. Given how much cheaper Falcon 9 Heavy is than the likes of Delta IV, to say nothing of the *possibility* of BFR/Starship. Imagine sending a *fleet* of these things to Titan in one shot…

Also good news: it’s nuclear powered. So instead of slapping down into the methane mud and promptly running out of battery life, it could potentially function for *years.* Even if it’s just sitting on a hilltop motionless, if it has a decent camera angle on the surroundings it could provide years of interesting observations.

AGM-183A ARRW test flight

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Jun 172019

The USAF is already flying bits of the AGM-183A ARRW.

Air Force conducts successful hypersonic weapon flight test

This was a “sensor only” captive carry, which presumably means something along the lines of a wholly non-functional mass/aerodynamics simulator. It doesn’t really look like the sort of thing that could get to Mach 20 with a meaningful payload.

The U.S. Air Force successfully conducted the first flight test of its AGM-183A Air Launched Rapid Response Weapon, or ARRW, on a B-52 Stratofortress aircraft on June 12 at Edwards Air Force Base, Californiahttps://t.co/N8wluNSayE pic.twitter.com/bdNrDRDpTr

— Edwards AFB (@EdwardsAFB) June 17, 2019

A Mach 20 Arrow

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Jun 162019

In response to both Russia and China claiming to have develop hypersonic weapons, the USAF has awarded contracts to Lockheed for two new hypersonic missile systems: the AGM-183A Air-launched Rapid Response Weapon (ARRW: “arrow”) and the Hypersonic Conventional Strike Weapon (HCSW: “hacksaw”). Little info is publicly available about them just yet (though it’s a safe bet that the Chinese have a complete set of plans; I’d be unsurprised if they had real-time access to the workstations being used to design them), but the ARRW is a boost-glide system that uses a rocket motor to launch a hypersonic glider to around Mach 20. This is not a particularly new idea; ground launched ideas like this go back more than fifty years, with air-launched versions seriously considered at least as far back as the 1980’s. The image below, taken from the SDASM Flickr page, shows a (presumably 1980s) General Dynamics design for an air to surface missile using a twin-engined rocket booster (presumably solid fuel) with a hypersonic glider.

The Lockheed ARRW is likely similar in concept if not detail. The basic idea of a rocket-booted glider is the most practical approach to long-range hypersonic strike weapons, though it’s not as flashy or trendy as airbreathing system such as scramjets. but while rocket systems would weigh more than an air breather, quite possibly by a lot, they would be much more reliable, cheaper to develop and capable of *far* greater speed. The ARRW, after all, is supposed to reach Mach 20. A scramjet would be damned lucky to exceed Mach 10, and testing has shown that a scramjet would but damned lucky to maintain that speed for long.

The heavier gross weight of a rocket system compared to an airbreather means that an aircraft could carry fewer weapons. The obvious solution is to build more carrier aircraft. While there will be no more B-1B’s or B-2’s, the B-21 *may* be built, though unlikely in any real numbers. A more practical solution might be to build specialized carrier aircraft, perhaps based on modified jetliners, perhaps even made unmanned, designed to fly in massed armadas with one or two manned control planes.

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