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Old October 2nd, 2006, 05:18   #43
MadMax
Delierious Designer of Dastardly Detonations
 
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Join Date: Dec 2001
Location: in the dark recesses of some metal chip filled machine shop
Safest rocket I've ever played with:

http://en.wikipedia.org/wiki/Water_rocket

Prefab designs are available at many science stores which carry science related toys. Nice thing about them is that they lose most of their weight on the way up as they blast out their reaction ballast (water). No pyro either.

They still present a direct hazard if you shoot them directly towards a target. As an indirect fire projectile they're pretty safe because they're so light once the water is ejected.
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