I am running an OS .46 FX, I just broke my 11 X 5 Prop for it. I have a couple of other props kicking around, please let me know if I should not use the prop on the plane:

11 X 9 APC
11 X 4 APC
10 X 7.5 Master Airscrew (3 blade)
10 X 5 Master Airscrew
10 X 6 Master Airscrew (3 Blade)

Will I be way overproping the engine with the 11 X 9, or under proping with the 11 X4? Really looking for the best short term option, I will not be able to get to the LHS until Friday and want to fly tomorrow.

Thanks for your help.