of a preform 100 that may be produced using this method is shown in its unwrapped form in fig2 spiral fabric 50 is woven using warp and weft fibers or yarns which may be made of any material suitable for the purpose or any material which exhibits the desired physical thermal and or chemical properties carbon nylon rayon glass fiber ceramic aramid polyester and metal yarns or fibers are but a few examples while flat multifilament yarns are preferred yarns or fibers of any form may be used e g monofilaments flat monofilaments multifilament yarns textured multifilament yarns twisted multifilament yarns braided structures or combinations thereof each of the yarn components or fibers may be coated with one or more layers of a coating for example a finish or any other coating that may enhance the performance of the component fibers if required spiral fabric 50 may be woven on a shuttle loom or any other loom that can be equipped with a differential take up system for example a differential take up system allows the edges of the fabric to be advanced at different rates so that the fabric can be provided with a desired and natural in plane curvature the system can be programmable so that different take up amounts can be specified for each pick spirals 30 and 40 in fig2 for example represent the edges of spiral fabric 50 and are parallel to the warp fibers and lines 32 represent paths of weft fibers of the preform semi circles 22 24 are trim lines indicating the top and bottom edges of the cone 100 which may be.