Thread: Busted fins
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Old 05-30-2019, 05:18 PM
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Chas Russell Chas Russell is offline
Retired Missile Technician
 
Join Date: Mar 2005
Location: Fort Worth, TX
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I cut or scrape away the glassine coating on paper tubes to get to the rougher paper to aid in the adhesive soaking in. I score the glassine slightly wider than the fin and the fillet covers the bare area. Another technique is the in method. Use a pin, drill bit, or knife blade to put small holes along the fin mounting line. I also carefully poke holes or score the balsa fins for adhesive absorption. On plywood fins I use a razor saw to cut lines in the root area to increase the area to glue.

Chas
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Charles Russell, MSgt,USAF (ret.)
NAR 9790, Lvl 1
SAM "Balls Three"
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