falcon...

If you are going to be using 5% nitro, you're better off with a 13x4 sports or 12x6.

I currently have a 13x4w running on 15%. Spool up is good, but not as great as a ys63. Its close though, would try a 13x6 to improve spool up.

I assumed the plane would be slow but the plane I have it in flys pretty fast. It previously had a ST51 w Jett muffler on 12.25x3.75. All props used are APC.