The mounting holes were carefully drilled to ensure that the brackets were centered. Now I will set my navigation tool against the top of the mounting bracket, rotate the straight edge 1 degree and align the engine mounting bolts with it. In the end, if the trike flies to one side or the other, hands off, I can always increase or decrease the rotation and find a balance empirically. Installed the ignition switch just in front of the seat on the keel. It is a gel cell so laid it on its side just below the engine mounting frame.
Straps are in place to hold it down horizontally.
Glued a small piece of closed cell foam to the bottom of the battery so that mast presses against it longitudinally. Trike wings have a really subtle feel in ground effect. A bit like a fin keeled sailboat with a wheel that is too large for the boat size. Our Sabre 16 wing has been delivered. Sabre changed the shipping carton from a round to a 1 foot square box with wooden ends.