Take your time sanding the fin to an airfoiled section as shown. It is made from 1/8
”
balsa to prevent warps, but this
means it is optimal to remove a lot of material as shown. Sanding to this fully streamlined section will both lighten
your model and provide better yaw response. Wait until after covering to attach the fin to the fuselage. We chose
to finish our fin with Minwax spar varnish, however you could also dope tissue onto the fin to seal it.
Assemble the nose block and sand it to match the fuselage. This is also a good time to sand the fuselage so that it
has no rough edges to disturb the covering.
