Skip to comments.Visual Guide – the Making of a DIY Space Capsule
Posted on 12/08/2013 2:52:19 PM PST by Utilizer
Kristian vonBengtson writes:
"Wanna build your own space capsule capable of doing an atmospheric re-entry on a suborbital mission? Well, here are some production hints and a visual guide."
The initial stages begin with sketches on paper before moving to 3D design software. He writes, "A whole bunch of sketches were done to get some kind of initial idea of the size, subsystems layout and how to actually produce the capsule while keeping an open structure for further development and potential changes. One of the main concerns was the small size and the ability to easy install and replace avionics. This led to the decision that all external side panels will have to accommodate being taken on and off no welding, only on the main structure." Afterward, he moves on to show the final metal cuts and how the pieces are put together via bolts and welding.
Ever wondered what it takes to launch your own recoverable spacecraft but don't have the budget of NASA, Barky's vacations and golfing funds, or the proceeds from the auctioning off of Imelda Marcos's shoes? Here's some of what it takes...
Better a homemade shelter than none at all.
My "shelter" will not survive a ground-zero explosion, but it is much better than living in someplace like Mehico El Norte - Los Angeles when one goes off.
And companies such as Space-X are showing that you do not need to spend pork on pet projects like NASA simply to accomplish a goal.
Ahem: “...like NASA does” simply to accomplish a goal. Left out a word...
If I were to hazard a guess, primarily to funnel more and more pork to politically-empowered politicians to go into their reelection campaigns and reward contributors and most family members.
Since 20 July 1969, just what has NASA’s goal been?
Well, since 2010 or so, see below quote and source:
“to find a way to reach out to the Muslim world and engage much more with dominantly Muslim nations to help them feel good about their historic contribution to science ... and math and engineering.”
Just what is your objection to a homemade shelter?
No worries. Anytime!
Especially since more and more products are being produced by the ChiComs who have absolutely no concern for safety, reliability, or robustness. I have been known to take apart a newly-purchased item on many, many occasions and improve them considerably.
When it is your own safety that is at stake, you tend to make decisions hevily-weighted towards your own survival.
Or you don't.
In which case you won't..
No way. They fooled me once with that cardboard submarine in the back of the comic book. “Just like the real thing!” I took it down to the fish pond and waded in. Our Navy’s in real trouble if their subs are like mine was. Dad told Mom, “No. Let the little dumbass take it into the pond. He’ll only do it once.” He called me “Skipper” after that. “Hey Skipper! How’s that float your boat? Hahaha!” So I put his pickup in neutral and rolled it into the pond.
I never could figure out why they don’t just come in at a more gradual angle, and do successive orbits to slowly slow down, instead of the firery re-entry thing. Or is it six of one and half-dozen of the other? I mean if overall, you’ve got to shed the same amount of delta-v, then maybe the shielding would have to be the same anyway, so why not make it fast? But that doesn’t make sense either, because if you went more gradually couldn’t you keep the temps lower, and require less shielding?
I think this is one of those math questions...
I believe if the angle of descent were any shallower, they'd skip -- like a flat rock off the surface of a pond.
Space-X, I believe, solved that problem with a longer descent time using a variable-angle wing on their craft.
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