I have been tinkering with my plane that is ready for it's maiden. and i got to thinking about the engine that i put into it (Evo .45 ). My plane is a .40 size "pattern master" (pic below) and it came with an old webra .40 in it. The prop that came with the webra was a 10x6 APC prop. So my question is:

Do you choose the prop based on the engine size, or the type of plane?

I'm a little worried that my Evo .45 is a little too much power for the pattern master, and was wonder if a different prop would help this problem. I'll include The "pattern master" specs.

Pattern Master-

Wing legnth: 60 inches
Fuse legnth: 42 inches
Full weight (no fuel): 6 lbs


Thanks!

P.S. I don't know the CG of this plane but it when i checked it it was half to a full inch forward of the main wing spar. is that good?