Figure 2-40. Hand Darning Method

ARMY TM 10-1670-282-23&P AIR FORCE T.O. 13C5-30-2 NAVY NAVAIR 13-1-33 (2) Hand darning. When repair of a hole or tear is made by hand darning, the darn should match the original weave of the damaged material as closely as possible. Hand darning will be performed as follows: (a) Using an authorized marking aid of contrasting color, mark a square around the damaged area and ensure that the marking is a least 1/4 inch back from edge of the damaged area. The marking will be made with the warp and filling of the material. (b) Using a darning needle and a length of size A or E nylon thread, begin darning at one corner of the marked area. Working in the direction of the fabric warp or filling, pass the needle and thread back and forth through the material until the opposite diagonal corner of the marked area is reached (A, figure 2-40). (c) Turn the material and weave the needle and thread back and forth across the stitching made in (b), above, until the hole Is completely darned (B, figure 2-40). (d) If applicable, restencil informational data or identification marks as outlined in paragraph 2-19. Figure 2-40. Hand Darning Method. d. Zig-Zag Sewing. (Refer to Tables 2-2 and 2-3). Air delivery items, except the canopy, made from textile materials that have sustained cut or tear damage may be repaired by zig-zag sewing provided the applicable damaged area does not have any material missing and the cut or tear is straight or L-shaped. Should the damaged area be irregular shaped or have material missing, the repair will be achieved by either darning or patching, as required. A zig-zag sewing repair will be accomplished with a zig-zag sewing machine, using the following procedure: (1) Set the sewing machine to the maximum stitch width. 2-57