Howdy,

I recently started playing around with different prop sizes on my 46fx, (stock muffler and baffle in tact) which is on a World Models Super Stunts 40 (ugly stik variant).

If you can, get every prop size that is safe for the 46 and try it. In short order you'll find the perfect one and probably one or two variables that will work better in different scenarios = wind, humidity, temperature and your general flying attitude for the day.

I have found three for my super stunts, 10x7 for mock pylon racing with my friend who has an Ultra Stik 40, 11x6 slower than the 10x7 better vertical and more of a on rails tracking, nice looking split S's and Hammerheads. Last but not least a 12x4. The 12x4 is my favorite. It seems to give the motor a very linear 4 stroke throttle response, unlimited vertical, and slow in your face flying. I can get away with a lot of dumb thumb showing off with this prop. Also for what it's worth, my motor likes the wood props better than the APC of the same size.

I know you can't compare the the two planes to each other, But I think to many people are stuck on one prop size. Since I have done this I feel like I have three different airplanes in one.