Modular construction of a semi moulded composite automotive vehicle tub.

A new and simplified method to manufacture a structural composite automotive vehicle tub. Pre-machined bulkheads are used as the datum points for the tub assembly and are the only significant parts of the structure that require holding in a jig. This significantly reduces the amount of accurate jigging required for this type of application thus reducing assembly costs. These pre-machined front and rear bulkheads also eliminate the requirement for a final machining operation thus eliminating a production stage which in turn reduces time and costs.