Apr 282015
 

I’m currently working on a series of Shuttle Orbiter tile “maps” to massage them into a form where they’d look good as cyanotype blueprints. Two are shown below; what I have on hand are about a dozen, covering every surface of the Orbiter. The centerline diagram is sized for 40 inches wide by 160 inches long; this is *way* beyond reasonable size for cyanotyping. But at 18 inches wide, it’d be 72 inches long… just about what I can handle.

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Another option might be to stitch the separate views together, rather than two wings and a centerline. Printed out B&W on paper, it’d be pretty durned impressive.

 

 Posted by at 4:56 pm
Apr 272015
 

Just added five more issues to Amazon for $2.99 each. These are Kindle-fied versions of the issues otherwise available as PDFs here.

There aren’t a whole lot of reviews… seven in total, I think. Six on one issue… and three are 5 out of 5, while three are 1 out of 5. It seems that those who went to the effort of reviewing either loved them or hated them. The negative reviews are at least honest – although I can’t makes heads or tails out of one of them. One of the complaints is that the drawings are too small, but I’m thinking that that might be an issue with the reader, dunno.

 Posted by at 6:10 pm
Apr 212015
 

Along with the knowledge that you’re helping support the cause of preserving and spreading aerospace history, if you become an Aerospace Projects Review patron you get the first crack at stuff that might be of interest. For example… a little while back I sold off some one-off test prints, and more recently 85 or so old issues of Analog/Astounding science fiction magazines dating from the 1940’s into the 1970’s.

APR Patreon patrons get not only the first crack at these things (more such sales are coming, including a whole bunch of aerospace books), but also get them at a discount. The $10-level patrons have the opportunity at first dibs, followed by $4 and up patrons.

If interested, check out the APR Patreon HERE.

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More stuff will be coming soon…

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 Posted by at 7:25 pm
Apr 212015
 

Neato:

NASA 3-D Prints First Full-Scale Copper Rocket Engine Part

elg39671

It’s come equipped with internal cooling channels; this sort of thing is kind of the dream of rocket designers. A thin-walled highly thermally conductive combustion chamber with built in regen cooling? Sign me up! But don’t start planning on your rocket powered cars just yet; neat as it is, there are still some problems. First: cost.

A selective laser melting machine in Marshall’s Materials and Processing Laboratory fused 8,255 layers of copper powder to make the chamber in 10 days and 18 hours.

A terribly expensive machine ran (presumably non-stop) for a week and a half to make one part. The direct cost of the part wasn’t given but I’d guesstimate somewhere between “A Lot” and “A Whole Lot.”

Second: quality. If you look closely, you’ll find not only the rough surface standard with 3D printed parts, but also some spots that look like something went a little off, like the part slumped locally:

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With all the nitpicks, though, the importance of the piece isn;t the piece itself, but what it represents. A combustion chamber like this would be essentially *impossible* just a few years ago. In a few years more, the quality of this sort of chamber will be much improved, while cost will go down.

 Posted by at 4:32 pm
Apr 182015
 

NASA Says Nobody’s Getting to Mars Without Its Help

… NASA administrator Charles Bolden went so far as to say that “No commercial company without the support of NASA and government is going to get to Mars.”

This can be taken two ways:

1) “NASA is just plain essential and nobody else has the smarts to do it.”

2) “Just you try, and we’ll drop on you like a ton of Federal bricks.”

Let’s *hope* that the true meaning is the arrogance inherent in #1. #2 would indicate serious trouble.

 Posted by at 4:14 pm
Apr 182015
 

Earlier this week, the United Launch Alliance announced the development of the semi-reusable “Vulcan” launcher meant to replace the likes of the Delta IV. vulcan1Regardless of the merits or problems with this new design, there’s one issue that may cause prompt legal trouble:

Paul Allen Launches ‘Vulcan Aerospace’ to Boost Private Space Travel

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Vulcan Aerospace will operate the “Stratolaunch” booster system now being built in California. vulcan3Vulcan Aerospace, it turns out, is part of Vulcan, Inc., which was formed in 1986 and has a trademark on the “Vulcan” name. vulcan4And Vulcan, Inc, seems like it wants to enforce that.vulcan5

Ooops.vulcan6

You’d think ULA would have checked on that. vulcan7 The article says that ULA looked into the name and found no legal issues… but that seems to perhaps be not entirely correct.vulcan8

 

 Posted by at 3:03 am