The MA prop should be exceeding 13K easily.... They turn more RRR's than their APC counter-parts.
If I am being completely honest with you, I would pull that magnum off ASAP and improve the powerplant- I have flown a Patriot with an ASP-46 which is basically the same thing as the magnum you have and it was lame- Not worth piping in my opinion....
If you do not want to spend the money on a Jett-50 or YS-45 (if you do then that will fix your problem
) then look for a Webra-50GT, Rossi-45, or OS-50SX in the swap shop, attach a 9x8 APC to it and watch it go. The Patriot with the OS-50SX and Tower Muffler flew great and was plenty fast, same as the Webra, the Jett is the ultimate on the 50 sized class though...
TOTALLY different airplane with a better engine up front, trust me...
