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Old 11-11-2016, 01:22 PM
Blastfromthepast Blastfromthepast is offline
'nother Old Fart BAR....
 
Join Date: Dec 2011
Location: Castle Rock, Colorado
Posts: 381
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When I got into model rocketry in 1973, D13s were long gone, in favor of the D12.. I do recall there were a good number of CATO D12s experienced by our club members in Colorado Springs. Almost all of these involved a split in the casing that would cause side-blow, pretty much roaching the whole model.

Have a couple of photos....

The first is a D12-0 that side-blew in a booster stage.

2nd photo is a D12 'Fireball' caught in the act of destroying a super-roc entry at NARWIN-1 in Phoenix. Original photo courtesy of Herb Desind.
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