Well I just bought a Yak ( same exact specs ) but am not sure if it is a WillHobby yak.
Everything I can see, tells me it is a WillHobby, except for the color skeem.
I have a OS Max 1.20AX I was going to put in it, but after reading the weight issues you guys are having, maybe I will put my Brillelli 36GT gasser in it. The only thing is the wife just bought me a Great Planes Super Stearman that the Brillelli was for. Well I guess the OS will just go in the Stearman.
Here are some pictures of the Yak, see if you guys can tell me if it is a WillHobby one.
WillHobby Yak calls for a 1.06-1.08 2C or a 1.20 1.40 4C