RE: Sterling RIMFIRE
I'm gonna keep it simple. Built up wing with fixed gear (taildragger) blown up to about 600 sq in. for my old Kraft .61. The whole airplane will be enlarged about 13%. One outstanding issue is the wing dihedral. The plans don't specify what that should be. I do like Carlos's suggestion for a P-51 canopy. I now see what you meant about the "diamond" leading edge. I'm not going to try to duplicate that. I'm just gonna use a NACA 63-015A airfoil ( it's a dead ringer for the original airfoil with just a very slightly softer leading edge ), with a regular 1/2" square leading edge.
My OS .55AX will have a new home in the Tsunami kit I have on order.
Have you made any decision about a Rimfire rebuild yet?
ChiefK