Just finished putting together my new H9 Xtra Easy trainer RTF (after I have changed a lot of things) and I have reservations about the 3 blade prop (9X6) on the supplied Evolution (.455 c.i.) engine. After seeing a few fly, the lack of thrust is something I don't like.
Have read some articles about the same subject and a lot of prople have replaced the 3 blade prop with a 11X7, 2 blade prop.
My question is - for those who did it - if you replaced the 3 blade prop with something different, what size did you use and how is the performance after the change?
I know, the plane is a trainer but at the moment is a kite....