I've enjoyed reading this whilst rather under the weather. Here is some more info.
If you read the booklet, Radio Control Big Four, which is a free download it shows the wing section as a modified Gottingen 549 and also that a standard Super 60 can be modified to a tricycle U/C. My last '60 with an ailerons wing had approx 1"of dihedral under each tip, just enough so that it didn't look "droopy".
Reminiscing, as one does here is a list of the '60's that I have owned over the years.
1. junior 60 free flight with ed racer power...1963,ish
2. Junior 60 RC am35 power and s/c carrier wave valve RC
3. Kk mini super ed racer and home built galloping ghost eqpt.
4. As 3 but with enya 19.
5. As 4 but with rcme digital proportional radio and fox 35 motor!
6. Super 60 with enya 29 and later fitted with os 40. Various radio.
7. Super 60 electric with speedgear 700 and 14 sub c nicads. This weighed about 7.5 lbs but still flew well! I later fitted it with an axi motor and 10 cell nicads.
Finally...8. a 75% super 60 with mfa belt drive 540 motor and 7 cell NiCad.
Guess what, without exception they all flew well. Perhaps its time that I built another '60 I've still got the tail wheel assembly from the last one!
Enjoy your 60's. All the best... Chris N.