ORIGINAL: HighPlains
That sounds like a Chuck Cunningham article. He wrote the same article half a dozen times. Pretty basic stuff from the 60's or 70's. His numbers were something like:
a wing with an aspect ratio of 5 or 6 to 1
Ailerons about 6% of the wing area
Fuselage length about 75% of the wingspan
Horizontal tail of 22-25% of the wing
Elevator about 20% of the horizontal
Vertical tail about a third the area of the horizontal
Rudder about 30% of the vertical
Balance at about 25%
Also, about 2-2.5 wing chords from trailing edge of wing to leading edge of horizontal stabilizer when AR is 5-6, and about .75 wing chord from leading edge of wing to firewall...engine/motor mounts forward of that.....OR 1-1.25 wing chords from leading edge of wing to face of propeller driver. Take your choice.
Ailerons can be a large as 15% of total wing area on sport models. 3D-type models have all bets off.