Where would you use surface tape?

• A. On the underside of wings only.
• B. Over rib stitching and sewed seams.
• C. On the edges only.
• D. Over rib stitching and sewed seams, over overlapped edges, around corners, and along leading and trailing edges.

Answer: (D)

Surface tape is used on exterior fabric-covered surfaces to protect and smooth the finish where fabric is joined or features change. It should cover rib stitching and sewed seams to seal those joints, over overlapped edges to prevent fraying and moisture entry, around corners to keep the fabric from lifting or tearing, and along the leading and trailing edges where the wear and airflow are greatest. This creates a continuous, aerodynamic surface and helps preserve the fabric system. It isn’t limited to just the underside or to edges alone; it’s applied across all the areas where seams, overlaps, and edges meet the air.