Semroc I.Q.S.Y. Tomahawk Build Part 4 Fin Shaping

I've started sanding the fins to the scale thickness of .05".

When working it down to the right thickness, I only sand one side of the fin.

To be sure I was only sanding one side, I'd restart with the fin root edge to the outside.

When sanding, I'd rotate the fin, but not turn it over. I'll sand and thin it from one side and keep the other side flat and square.

Here the fin thickness is checked in the caliper. Go all the way around the fin checking the sides and middle for consistent thickness.

Here's an original 1/16" thick fin on top and the .05" scale thickness fin underneath.