10-17-2020, 09:19 AM
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Join Date: Nov 2005
Location: WI
Posts: 1,852
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Quote:
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Originally Posted by Chas Russell
The MJG Firewire initiators will fit the nozzle of D12s and larger BP motors. I use them in a model that uses 3 D12s. You should hook one up to your launch system to ensure they continuity check safely. I fly off of the DARS 12v system and have never had an issue with them.
Haven't had a chance to fly this year, but hope to fly the model with three boosters in separate tumbling stages (Moh, Lari, and Coily - The Three Stages).
I bought a box of 80 MJG Firewires from Chris Short at Chris' Rocket Supplies.
Chas
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I use these for BP clusters, the mini size for B6/C6 motors, and the standard size for C11/D12 motors:
https://electricmatch.com/rocketry/...rocket-starters
The standard size will often fit B6/C6 nozzles, but not always, they're right on the edge of being too large.
In any case, those C18/D20 motors should be great fun! I'll definitely try using them in clusters.
__________________
Paul
If we weren't all crazy, we would go insane - Jimmy Buffett
NAR #87246 www.wooshrocketry.org
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