Mine's got a OS .91 Surpass I with a 14x6 wood MAS. I've also seen one fly with the Saito 100, and it's good! I don't know which prop he's using though. You should be able to swing a 15". 15x6 or maybe 15x8. There is a thread farther down this topic on engines for this plane.

http://www.rcuniverse.com/showthread...287&forumid=57

You're gonna like this bird! Flies great and looks oh so cool. :