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Sons Chris, Erik and I will be building a rocket test stand and a prototype paraffin/NOx hybrid rocket engine. Hopefully test firings on the stand in a few weeks and a launch later this summer when we get the formulation & casting of the fuel grain figured out. We'll probably start out with 95% hard paraffin & 5% carbon black.
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Dr. Mordrid
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An elephant is a mouse built to government specifications.
I carry a gun because I can't throw a rock 1,250 fps -
Be sure to take lots of pictures! (or else...)Q9450 + TRUE, G.Skill 2x2GB DDR2, GTX 560, ASUS X48, 1TB WD Black, Windows 7 64-bit, LG M2762D-PM 27" + 17" LG 1752TX, Corsair HX620, Antec P182, Logitech G5 (Blue)
Laptop: MSI Wind - Black
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...evidence for the insurance company?
Seriously though, sounds like a BLAST!
FT.Comment
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How are you building the shell of the engine and nozzle/bell?
KevinComment
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The shell & its end cap - stainless.
The nozzle - initially steel, later graphite (for launch) with the usual de Laval profile.
Turnings done on our 3-in-1
We may experiment with a ceramic nozzle shaped using mandrels and fired in my wifes kiln, but that depends on how predictable & uniform the shrinkage is. If we can't get it in a few tries we go back to turning.Last edited by Dr Mordrid; 4 July 2007, 12:44.Dr. Mordrid
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An elephant is a mouse built to government specifications.
I carry a gun because I can't throw a rock 1,250 fpsComment
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If you can, try and strap on a wifi cam pointing towards the earth, would make for some awesome footage.Titanium is the new bling!
(you heard from me first!)Comment
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Already in the plan
We own a 2.4ghz micro-cam (42x55x9 mm) rig anyhow. We can mount it pointing out the side with a 35-40 degree enclosed mirror to get the departure view. Should work fine if we place an identical shape on the 180 to balance the aerodynamics.Last edited by Dr Mordrid; 4 July 2007, 12:57.Dr. Mordrid
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An elephant is a mouse built to government specifications.
I carry a gun because I can't throw a rock 1,250 fpsComment
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Sweet!
Can't wait to see the footage. I love rocketery, it's so much fun.
Titanium is the new bling!
(you heard from me first!)Comment
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Perhaps one more question?
What about method of slowing descent? Ejecting parachute? :>
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