Marking templates are cut out and pencil marks made at the fin locations. Set the tail cone and body tube on a table with the flat sides of the templates facing down. After adjustments I taped the marking templates in place and marked the fin locations.
It's not easy to draw a straight line down a curved boat tail.
I set a piece of tape down the two pencil marks and drew a line. Laying a piece of tape down on the boat tail will give you a line that is almost straight, it'll have a very slight curve to it.
The fin was set beside the line to gauge the position height. The primer/filler was sanded down to the CWF for a stronger bond.
The instructions say to build up fillet layers that taper and get wider to the rear. The older instructions say to do three layers of glue, I did four. They did look thick when drying, but after paint they didn't seem wide enough.
This illustration shows some very wide fillets!
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