spacecraft – Page 13 – Aerospace Projects Review Blog

Apr 052020

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 So I’ve got an alternate: The APR Monthly Historical Documents Program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.

Shuttle Expendable Second Stage

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Apr 032020

A beautiful illustration of a circa 1972 concept for a McD Expendable Second Stage for the then-planned manned flyback booster for the Space Shuttle. The Saturn S-IVB-derived stage would be equipped with an array of solid rocket boosters for maximum thrust and maximum complicatedness.

X-34 upper stage

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Mar 282020

A sketch of the liquid propellant upper stage planned for the Orbital Sciences X-34A.

Possibilities of New Business Growth: Space Command Post

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Mar 182020

In 1985, Rockwell International considered the possibility that there might be profit in a space station with a singular purpose… to serve as a command post in the event of a nuclear war. Its position would let it confirm Soviet ICBM launches and direct space based weapons in their response. Presumably this means that there would need to be several such orbital command posts. The brief description suggests that the command post would be in “high orbit,” perhaps geosynchronous; to have global coverage, at least two and preferably three or more such posts would be needed. The lower the orbit, the more would be needed to see the whole planet.

A month of aerospace

bomber, fighter, hypersonic, jetliner, launch vehicles, nukes, Recon, research, rockets, ships, space shuttle, space station, spacecraft, spaceplane, stealth, transports, VTOL No Responses »

Mar 182020

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.

Sea Dragon Operations

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Mar 122020

Sea Dragon was, as is doubtless news to few around here, an early 1960’s idea at Aerojet for an extremely large, very simply two-stage pressure-fed space booster. It was meant to be as cheap to build and operate as possible with 1960’s tech, relying on scale to make it all work. Would it have worked? Maybe. Physics supports it. Would it have been cheap to operate? Hard to tell. “Simple as possible” does not equate to “simple,” and anything the size of Sea Dragon, especially screaming out of the sky to smack into the ocean while blisteringly hot… well, there are always risks.

In 1963 the idea of a pinpoint vertical landing a la the Falcon 9 would have been ridiculous, so splashdown was really the only way to go for a booster designed for simplicity. But as NASA and Thiokol found with dropping Shuttle boosters into the drink, recovery and refurbishment after salt water immersion can be a bit of a headache. The way to make a Sea Dragon truly economically competitive would be, as with Falcon 9, flight after flight after flight, often enough that it ceases to be an Amazing News Story and becomes, like the Falcon 9, seemingly dull and monotonous. But given the million-pound payload of the Sea Dragon it’s difficult to envision a space program following on the footsteps of Apollo that would have required a Sea Dragon every few weeks. It would certainly have been *nice* to have had such a program (and if the current pandemic takes down western civ it will turn out that the lack of such a program was criminally negligent) but the existence of a timeline with such a program seems a little difficult to envision.

The article, written by sea Dragon advocate Robert Truax, that the above illustration came from has been scanned and made available to above-$10 APR subscribers and Patrons.

Possibilities of New Business Growth: Space Nuclear Power Systems

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Mar 082020

In 1985 Rockwell International thought that there might be a business case for space based nuclear power systems. The customer base for nuclear reactors in space seemed to be restricted to military satellites (warning and recon mostly) and deep-space exploration systems. Advantages over solar power include resistance to the degradation of PV arrays due to passing through the ionizing Van Allen radiation belts and no need to track the sun. Costs, however, were high… high enough that in the end nothing came of it.

Possibilities of New Business Growth: Solar Power Satellites

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Mar 062020

By 1985, the “Solar Power Satellite” program of the late 1970s was effectively dead. SPS rose to prominence atop the rising oil prices due to OPEC oil embargoes and the like, but in the early 80’s the global price of oil collapsed and potentially competitive systems such as SPS suddenly were no longer remotely competitive. Still, Rockwell International hoped that they could leverage their considerable experience with SPS to generate a [profitable business. But it was not to be.

Coulda Shoulda EMPIRE

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Mar 012020

This video was posted on YouTube some six-ish years ago, but remains worthy of viewing and discussion. It’s a General Dynamics film to NASA from late 1962/early 1963 discussing the study of Early Manned Interplanetary Missions (EMPIRE), NAS8-5026. It describes the future as it should have been… and as how Krafft Ehricke, the presenter of the film and one of the driving forces behind the program, saw it:

1: Manned landing on the moon by the end of the 60’s.

2: Initial manned flights to (flybys and orbits) Venus and Mars in the early 70s

3: Entire solar system explored robotically by the end of the 1980’s

4: Manned mission to Pluto by 1995

Ehricke’s view of the future of space flight from the standpoint of the mid-1960’s was previously shown HERE.

The original film included a number of bits of concept art of both manned and unmanned spacecraft. Sadly no Orion vehicles are on display (it is name-dropped), but the Mars lander/excursion module was of the kind originally proposed for Orion. This was pre-Mariner when the Martian atmosphere was *massively* over-estimated; these landers and their dinky parachutes would, with the real Martian atmosphere, have made impressive craters in the surface.

Early North American Rockwell Shuttle

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Feb 232020

The North American Rockwell proposal for the Space Shuttle Orbiter. It is clearly *close* to what actually got built, but there are important differences. The airlock is in the nose and the OMS pods are lower on the sides of the rear fuselage and the rear portion of the cargo bay could be fitted with a pod that includes flip-out turbofan engines for range extension and landing assistance.

The full-rez scan of this diagram has been made available to all $4 and up APR Patreons and Monthly Historical Document Program subscribers. It has been uploaded to the 2020-02 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.

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