GrnBrt & Jim, Thanks for your replies. I have the right wing panel done. I was building Herr Star Cruiser last year, and broke one of its balsa spars, so I am using hardwood spars. I expected that I would do the same with this one also. The tail feathers can be enlarged, it will be a bit down the road. Somewhere around here I have a TT 40 & 46 Pro that I plan to use. I may start with the 40 and then change to the 46 later. I will also change to hardwood for the turtledeck. I am going very slowly with this thing so I don't screw it up too bad. I also have Magnum 52 4 stroke I may try also. We'll see about that later on. Thanks again.