Your question prompted me to pull out my old and brittle copy of Abbott & Von Doenhoff’s “Theory of Wing Sections”. I seem to recall that the RV3 uses an NACA 23012 airfoil, and A&VD show this to have a stall AoA of right about 18 degrees. Of course, this is an ideal 2D airfoil - once you apply it to a 3D wing....usual caveats apply....YMMV....
Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
Last edited by Ironflight : 10-21-2019 at 09:18 AM.