Mini Honest John Build Part 9 Fin Shaping 3

When sanding the upper and lower surfaces flat, it helps to set the block edge to the side of the high point pencil line.

While sanding, constantly check the diamond shape profile on the root and outside edges for continuity.



Here's the finished fin.

In this picture, the balsa coloration makes it look like the taper doesn't extend to the middle root of the high point pencil line. It's there, it's just subtle and should show up after filling and painting.

When the balsa grain is filled, the filler will help sharpen the high point line. You'll have to be careful when sanding the filler to keep the leading and trailing edge thickness consistent.