Thread: Question Estes rocket motor code ?
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Old Jan 20, 2013, 12:07 PM
The Tellurian is offline
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St Catharines Canada
Joined May 2002
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The '0' in D12-0 means there is no delay charge and no ejection charge either. Its all propellant which when burning to the top simply blows out the top when it gets thin enough that it can't handle the pressure.

I sometimes cheat by removing the clay and the ejection charge from a D12-3 and pouring in a little epoxy over the delay grain. Thats a 'do at your own risk' solution but works as a D11P and E9P replacement.


Richard
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