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- Sep 5, 2009
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I was doing some ground testing in 25 deg F temperatures, yesterday. The rocket assembly was outside for at least an hour, so everything was at this ambient temperature. I found that my usual charge canister (centrifuge vial, ematch, hot glue, 1.0g FFF, dog barf, snap the lid closed) failed miserably. A little poof, smoke, and then nothing. The BP burned, but the nose cone did not budge.
This setup has worked fine for me for years in warmer temps, and at many winter launches. Not yesterday, though.
I suspect low temperature, low pressure, low heat, and poor burn of the BP. I read the posts from Jarvis and TFish, and will try some of their techniques used for high-altitude combustion.
Thoughts?
This setup has worked fine for me for years in warmer temps, and at many winter launches. Not yesterday, though.
I suspect low temperature, low pressure, low heat, and poor burn of the BP. I read the posts from Jarvis and TFish, and will try some of their techniques used for high-altitude combustion.
Thoughts?