One-way tapes consist of a weave suitable for adding tensile and load resistance in a specific direction.
 This type of tape is most commonly used in the "stringerless" EPS construction, replacing the classic wooden nose to tail stringer or to give resistance on rails or even more recently in the parabolic "carbon warp" technique. UD carbon can also be used to add extra strength on the tail.
 Laminate the carbon tape directly onto the foam and under the fiberglass layers. To position it, use a little resin under the fabric, or special glues.