The front of the prop should face the front of the plane and then you will run the motor backwards. C gearing is 5.33:1 or the 64T gear set. I run my antenna out the front of the inlets and hot melt glue it to the side of the fuse. The CG is 2.38 back from the inlets or 3.87 from the front of the wing where it hits the fuse. Indeed a little forward of the spar.