Tuesday, October 29, 2019
Estes Little Joe 1, #7255, Build Part 5, Skinning The Fins
The leading edge fold was sharpened with a burnisher.
It doesn't have to be razor sharp, it still has to roll over the front of the fin assembly.
The instructions say to put glue on the folded card stock skin. I didn't do it this way, I was concerned that wet card stock might distort.
Instead I applied glue to one side of the balsa frame being sure to get good coverage on all the contact areas.
This was smoothed out and excess removed with a Q-tip. Be sure there isn't any drops of glue pooled up in the corners. Heavy glue can shrink and distort the flat card stock skin.
TIP: It's hard to see in the picture, but I set the skin to overhang a very slight amount at the root edge to better fit the curvature of the body tube.
The card stock is a little larger than the balsa frame and will overhang at the outside and trailing edges.