Fabricating tail gunner compartment structure: Part IV

The first step in making the lower portion of the tailgunner's compartment was to make a posterboard outline of the upper bows for duplication. Frankly, I screwed up with this particular project right from the start. I should have just made a form block out of wood or similar, so that each of the three bows would have been made from the same mold. The way I've done it here takes much longer and allows for more mistakes. Anyway, here's the process on the last bow...