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Old 10-15-2015, 08:46 AM
MadHatter MadHatter is offline
WOOSH NAR558 President
 
Join Date: May 2011
Posts: 133
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15/15 rail guides are required if your rocket weighs more than 50 pounds, unless you are planning to put a lot of weight in the nose cone you will want to use 10/10 guides.
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