The radiator is made with a plywood back plate. On that i made two balsa boxes the shape of the cores. I put a slightly smaller piece of 1/64 ply on the sides to match th shape of the full size. I got some brass mesh foil at a craft store.and inset it into the boxes to complete the effect of leaded cores. The bottom and top are made of balsa. The center top cover is hinged aluminum,as on the full scale. It is held closed by the toe engine cowling. After shaping the cover, I cut out the center of the top balsa block and added the brass cap. The shutters are made of aluminum strips. I cut a notch in each end of each strip. then I made brass caps for the ends by cutting a slot in pieces of 1/16 tubing, and sliding them over the slots in the shutters. This forms a small cavity to recieve the brass pin which holds them in the aluminum frame.I put the shutter in place, fill the cavity with epoxy in a small syringe, and insert the brass pins.
The bracket on the sides are 1/64 Ply and the !QUOT!rivets!QUOT! are small pins. The velocity stack for the carb air intake is carved balsa. Total Pieces? 721!