ARMY TM 10-1670-279-23&P
AIR FORCE T.O. 13C5-27-2
NAVY NAVAIR 13-1-28
Vent Lines (cont).
Position one end of new vent line in exact location formerly occupied by end of old line (figure 2-35).
Measuring from the outside edge of the upper lateral band, the vent line should extend 4 inches into radial webbing.
Using a zig-zag sewing machine and nylon thread, size E, stitch new line in place. Begin stitching on line 1/4
inch above upper edge of vent reinforcement tape and sew to 1/4 inch beyond end of line, 7 to 11 stitches
per inch and 118-inch wide (figure 2-35).
Pass remaining end of line under other vent lines, and through bridle loop and bridle centering loop as
Position and sew remaining end of line to opposite side of canopy as in steps (4) and (5) above.
Figure 2-35. Vent Line Replacement Details.