Hi y'all,
Most if this info neglected to say if the angle was for one panel
or the entire wing. If panel angle was 5 deg, entire wing would be
10 deg.
A bit of AMA history> Prior to the 53 Nats R/C was flown as classes, rudder only class one, rudder and elevator was two,
three was multi.
One of the last Nats with classes saw the Ambroid "Charger"
clean up the troops in class one.
An earthshattering event was when Jack Port and his rudder only
"High Q" in the first open class Nats beat all the multi reed planes.
If one is looking for aerobatic rudder only it would do well to check these two out.
As memory indicates I do not believe either one had excessive
dihedral.
Good luck and have fun!

Hal deBolt

dihedral.