Selenian Boondocks

My gmail account was compromised this afternoon. I changed the password, but am not sure if that did the trick. If people keep getting spam email from my gmail account, let me know.

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guest blogger john hare
One of the things that I take exception to is people saying there is only one way to do something. From some people I get irritated, from others I enjoy finding some way of proving them wrong. This one actually was a joke at the expense of the Masten team before I [...]

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guest blogger john hare
One of the engineering teachers at the community college I briefly attended had an expression, “Engineering is an exact science, and intuition.”   In both my day job and rocket hobby, I take that to mean that if you have to be able to see a bit more than shows on the surface. I [...]

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So, I got my big propellant depot paper done in time, but now I have some other stuff that will probably keep me from posting much for a while:
http://thelaunchpad.xprize.org/2009/08/2009-ngllc-first-attempts.html

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guest blogger john hare
The comment exchanges with Eric on crazy 319 triggered another thought. Jons’ post on Thrust Augmented Nozzles (TAN) mentions that the work on scramjets led to the technology. That part never made sense to me as I tend to think of scramjets as about the most useless thing ever conceived. The handling concepts of [...]

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guest blogger john hare
Development cost is a major player in anything concerning space launch vehicles. Why not heavy lift, RLV, laser, maglev, turborocket, scamjet, rotovator, BDB, and on and on and on, is largely a function of development cost at this point in time. If you can’t afford to develop a system, it really doesn’t matter [...]

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It’s that time of the year again. One more year until the big three-oh. It’s kind of crazy to realize that ten years ago, I had just finished the last three finals of my undergraduate career, I had just had my first kiss, and was…busy shooting my mouth off on the internets about [...]

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guest blogger john hare
A friend mentioned that he had adequate shop air at 150 psi to test my pump. We had just a few minutes between jobs this afternoon to see what would happen. We got positive results.
Sort of. The air volume was not enough to choke the exhaust ports and build up full pressure. [...]

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guest blogger john hare
As salesmen of the spaceflight concept, we need to be tuned in to what people say in response to the things we find interesting. I have gone out a few times with Flor and think she looks great. So when She gave me this picture, I showed it to the people I [...]

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