Hmmm, well that gives me some confidence… Unfortunately since it was at night, I had no idea the fin was broken until I got back to the bench and put a light on it, so I have no idea where the piece is… But, you gave me an idea where I can steal one of my kids broken up pre built rocket fins and glue it on/sand and refinish quite easily… Using CA, I would believe a broken fin would be a stronger repair since it has a perfect mate with some odd angles or curvature to aid, rather than a perfectly flat/strait edge to edge joint. I may just try and sand a notch on the fin and perform the opposite in the repaired edge as to create a mechanical joint (similar to finger joints in woodworking) giving the edge more surface area for the glue to bite into. After that, a little bondo/sanding and all will be well. I bet it will work perfectly… May even consider fiberglass, but that may be a bit extreme...

Thanks for the idea; this may actually work as long as I can find a compatible mate… Did I just type that?

LOL!

I bet that would work fine. I went another route when I lost the corner of a fin on my Estes Ionizer. Instead of trying to replace it I snipped off the corners of the other three fins to match. It flies just fine, plus it a pretty cool look to boot.

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I plan ahead that way I don't have to do anything right now.

Oh by the way, I'm not here just for the "olde" rocket discussions.