ARMY TM 10-1670-281-23&P
AIR FORCE T.O. 13C5-32-2
NAVY NAVAIR 13-1-32
2-52. 68-lnch Pilot Parachute (cont).
6 Reinvert the canopy to locate the inside reinforcement tapes to the inside.
7 Reposition each of the crown outside reinforcing tapes in the original location and secure the
tapes by stitching according to original construction details using the specifics in table 2-3.
Stitching will be made with a light-duty sewing machine using size 3 nylon thread, 7 to 11
stitches per inch.
(4) Canopy reinforcing tape.
(a) Restitching. Stitch and restitch with size E nylon thread which matches the color of the
original stitching, when possible. Lock all straight stitching by backstitching at least 1/2 inch.
Restitch by overstitching each end of the stitch formation by 1/2 inch. Restitch directly over
the original stitching, following the original stitch pattern as closely as possible. Stitching will
be in accordance with paragraph 2-19 and table 2-3.
(b) Splicing. A canopy reinforcing tape may be spliced an unlimited number of times as follows:
1 Cut a length of 9/16-inch wide, type I nylon webbing long enough to extend 2 inches beyond
each side of the damaged area and sear the ends.
2 Center the webbing length over the damaged area and secure the splice by stitching a box-
stitch formation, 1/8 inch in from each edge, the full length of the splice material. Stitching
will be made with a light-duty sewing machine using size E nylon thread, 7 to 11 stitches per
inch.
(5) Crown attaching loop. A damaged crown attaching loop will be replaced by fabricating as follows:
(a) Cut the damaged loop at the center and, if applicable, pass the cut ends of the loop under
the other original loop from opposite directions.
(b) Overlap the cut loop ends and secure the overlapped ends to the center of the canopy crown
by stitching a 3-inch long row of stitching, 1/8 inch in, along each edge. Stitching will be
made with a light-duty sewing machine using size E nylon thread, 7 to 11 stitches per inch.
(c) Cut a 12 7/8-inch length of 9/16-inch wide, type I nylon webbing and sear the ends.
(d) Using a suitable marking aid, mark the webbing length at a point 5 inches from each end.
(e) Center the webbing length over the original loop location on the canopy outside and aline the
ends with the ends of the crown inside reinforcement tape. Secure each end of the webbing
length by stitching a 5-inch long row of stitching, 1/8-inch in, along each edge (figure 2-142).
Insure a 2-inch long. 7/8-inch radius loop is formed at the center of the webbing length,
between the 5-inch marks. Stitching will be made with a light-duty sewing machine using size
E nylon thread, 7 to 11 stitches per inch.
2-198
