Dear Dave,

Planning to use APC 12X7 on YS53 for pattern flying, do you think it is OK? Any other suggestion.

The YS53 is NIB & what prop is best for breaking -in the engine?

Thanks.
Kenny

12x7 is too big for the 53. Try 11x6, 11x7, or 12x5. If it's an exceptional 53, you might add 1 pitch to any of those sizes.

Thanks, Dave

You're welcome, good flying!