Still just working on bogey parts, and adding supports on the bottom of the frame before I skin it with sheet metal.
The big spacer blocks are among the more tedious of items. They are what centers the bogey arms inside the track, by extending the bogey assembly about 3″ away from the hull.
Here I am adding the cross supports to the bottom of the frame, adding strength. The frame is still very light:
Two more of these on the bottom, and then I will go through and add gussets in places I think need a little extra strength. Then, it will finally be ready to be sheeted.