I'm curious which propeller would be best for a .25 OS engine. I want to be able to perform better aerobatic maneuvers with my trainer. The reccomended sizes are: 9x5, 9x6, 10x6. I appreciate the help! [img]i/expressions/face-icon-small-cool.gif[/img]

10X3 if youcan find it... [img]i/expressions/face-icon-small-wink.gif[/img]

Actually... it depends on the airplan. you just didn't give enough information. the aircraft kit and and its weight would help. Also, which type aerobatics you want to do.

ts probable that the trainer won't be able to do everything you are going to list... But list them anyway.

I know that since it is a trainer.....I won't be able to do much with it. I just wanted to find a propeller that will take my plane to it's full pontential. My plane is a Carl Goldberg Eaglet 50. It's about a 5-6 year old kit....but a great trainer. The flying weight is: 50 oz. I have set up with 4 channels. Like I mentioned before....I know that it wont do any spectacular stunts......I just want to fly it to the limit (Ok.....well not that far....that wouldn't be to safe) Thanks again for the help

use the 9X5 or the 10X3.

It will do nice loops and rolls, and can do some inverted flying. Cuban 8-s it will want to veer off track, but its correctable with proper elevator and rudder coordination in the 1/2-rolls. It won't do an outside loop safely. foreget trying any 3D stuff or hovering.

Its a good trainer and can do quite a few aerobatics. Its capable of everything in the previous (2 years ago) AMA Sportsman Pattern, and could have even won contests with a good pilot... (but then... even a scale cub could do that...)