I have a Zlin EP - the website and the directions provide the following information but does NOT give the designed CG location. I have emailed multiple times and called, but no one has been able to provide me with the information. PLEASE HELP - I would rather not 'guess' as to the CG location.

Specifications:
Wing Span : 40 in / 1016 mm
Wing Area : 430 sq in / 28 sq.dm
Flying Weight : 45oz / 1300g
Fuselage Length : 31 in / 800 mm

Requirements:
Li - poly : 11.1V ; 1800-2200mah ; Propeller :9"x 6" ;
Out ranner Brushless Motor : 450T Speed ; Control:45AMP.