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Old 05-01-2020, 09:51 PM
tbzep's Avatar
tbzep tbzep is online now
Dazed and Confused
Join Date: Mar 2005
Location: TN
Posts: 9,589

You can make much better smoke with ping pong balls or a 3:2 ratio of KNO3 and sugar in an old motor casing.
I love sanding.
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Old 05-02-2020, 09:51 AM
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5x7 5x7 is offline
Sometimes collector
Join Date: May 2008
Posts: 758

Although the designs of the Concept II are really nice, The exchangeable mount could become a problem. The three different motor mounts use a single plastic centering ring with two slots that let small tabs pass through, then twist to lock. After a few flights the plastic ring would start to deform, making removal and installation difficult. In retrospect I think if wadding was packed around the mount before installing it might have prevented the problems.
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