Champ STOL flaps

STOL = "Slow Takeoff or Landing".  Makes the Champ fly even slower and smoother.  Alpert writes:

I made them myself out of 1mm depron. Simply cut 6 small obtuse triangles for each wing panel and glue a 1/2" (12mm) strip of 1mm depron so that you get about a 20* angle in each one. The Champ flies perfectly well without them but I like to experiment with stuff like that.