Hi guys its Elvir from Croatia, I read some of you posts, would appreciate some help I just went to my first F3A event here in Croatia and places 5 out of 7 . I was happy with the result with my tower kaos .I did not know any of the maneuvers until a few day before the event, now I like it . I was planning to do a multi engine but now I have changer my mind. To the guys that fly F3A I would like to build a U CAN DO 3D 60 with a OS 90 4 stroke or a saito 100 , any suggestions on a better combination or a better plane of that sort .. Is 2 stroke better then 4 strokes for the vibrations control in this case as I read in previous posts.

Thank you