TM 10-1670-201-23
T.O. 13C-1-41
NAVAIR 13-1-17
(c) Turn the material and stitch back
and forth across the stitching made in (b) above until the
hole or tear is completely darned (B).
(d) If applicable, restencil informational
data. gore number(s), or identification marks using the
criteria in paragraph 3-5.
(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 close 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 insure that the marking is at least 1/4 inch
back from each edge of the damaged area. The
marking will be made with the warp and the filling of the
material.
(b) Using a darning needle and a length
of suitable type thread, begin darning at one corner of
the mark(d 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, fig. 3-2).
Figure 3-2. Hand darning method, typical.
3-4