Was wanting to know what size prop I should order when I order the plane and engine. I am planing on doing it today when ever I get the nerve to spend alot of money..haha

APC 11x5, get a couple of them.

I used a 10 x 6 to break in my OS .46 ax on a Kadet LT-40...now I use an 11 x 6

start with any of those...once flying start switching around to see what works...
several people at my field fly with 12.25 x 3.75 and love it, but I haven't tried that one yet

Look, you can get a number of answers on this question nd it all depends on the engine power, weight of the plane, altitude you're flying at.

For the TT .46-pro you can use a number of props, but I'd say that the 11x5 is good for a trainer.
It's lower pitch compared to the 11x6 makes it a bit slower which is good for you.

Generally when you speak of props you say that the bigger diameter makes thrust and the higher pitch makes speed.
The first number is diameter 11x5 and the last number is pitch 11x5

E.g: Take the same plane and prop it diffrently. A longer prop with low pitch will have great acceleration and power to pull the plane vertical.
The same plane and engine with a shorter, high pitch prop will hae bad acceleration, no "pull power", but when it get's going, it'll be very fast.
A good comparison is the gears of a car. Low pitch = 1:st gear.... high pitch = 5:th gear


Whatever you chose in the 10-11-12 X 4-5-6 will fly the plane, don't loose any sleep over it....As long as you get the 11x5

10x6 break-in and a good prop for a trainer and your second plane.

I would not suggest using a 10x?? prop with a ball bearing 46. There is high probability of over revving the engine since the 10x?? prop will allow the engine to turn several hundred rpm faster.

Use an 11 x 5, 6, 7 on the trainer. I would suggest a Master Airscrew 11x6 (the black prop) . The MAS props are not as efficient as an APC prop (the grey ones ), but they are a lot more tolerant of prop strikes and other abuses than an APC.

A 11x6 MAS will provide ABOUT the same performance as an 11x5 APC. Once you have learned to fly the trainer switch over to an APC 11x5, 6 or 7 for added performance.

The manufacturer recommends the 10x6 for break-in and general flying! I have 4 -TTpro .46 on several planes flying 10x6 with no issues engines are 4 years old. I also use the 11x6 on my profile planes they run good also.

Mine flies great with an APC 11x5.

The manufacturer does not recommend the 10-6 for anything other than break-in on the .46 Pro & it is not nearly enough prop for that engine on that plane to get the full benefit of the powerplant.

An 11-4 will fly it to the moon -- straight up -- but, like the 10-6, will scream on the level at full throttle (~15,000+ rpm).

An 11-5 or an 11-6 are both very good & will still give unlimited vertical & as much level speed as is good for you or the plane.

An 11-7 is too much load for optimal performance with that plane-engine combo.

If you had more ground clearance, a 12-4 would be an outstanding choice. I have modified Avistars to tail draggers & used 12-4's on them -- a killer combo for aerobatics.