TM 10-1670-277-23&P 0020 00
UNIT MAINTENANCE
28-FOOT DIAMETER CARGO EXTRACTION PARACHUTE
GORE SECTION
0020 00-1
THIS TASK COVERS:
Repair
Tools
Brush, Stencilling (Item 3, WP 0056 00)
Knife (Item 5, WP 0056 00)
Needle, Tacking (Item 10, WP 0056 00)
Sewing Machine, Darning (Item 19, WP 0056 00)
Sewing Machine, Light-Duty (Item 21, WP 0056 00)
Shears (Item 24, WP 0056 00)
Yardstick (Item 26, WP 0056 00)
Materials/Parts
Cloth, Nylon, Parachute, Type II, 3.5 Oz. (Item 5, WP 0065 00)
Marker, China, White (Item 12, WP 0065 00)
Pushpins (Local Purchase)
Thread, Nylon, Size E (Item 30/31, WP 0065 00)
Personnel Required
92R (10) Parachute Rigger
Equipment Condition
Cleaned (WP 0008 00).
Inspected (WP 0009 00).
Unpacked, parachute laid out
on table.
References
WP 0012 00 and WP 0014 00
REPAIR
1. Restitching. Stitching and restitching made on parachute canopies should be accomplished with size E
nylon thread that is contrasting in color to the fabric being stitched or the original thread being restitched.
If contrasting color thread is not available, thread of matching color may be used, providing all other
specifications are met. Straight stitching and restitching should be locked by at least two-inches at each
end of a stitch row, when possible. Restitch directly over the original stitching and follow the original
stitch pattern as closely as possible.
2. Darning. Darn a hole or tear in a gore section that does not exceed ¾-inch in length or diameter as
prescribed in WP 0012 00, SEWING PROCEDURES, using size E nylon thread. Each gore section may
be darned three times.
3. Patching. Use a patch to repair holes that exceed ¾-inch in length or diameter using the sewn patch.
a. Sewn patches. There are two types of sewn patches authorized, the basic and miscellaneous. A
basic patch is used to repair damaged cloth when the affected area is no closer than 1-inch from a
radial webbing upper lateral band or lower lateral band. Should a damaged area be closer than 1-
inch to the cited areas, a miscellaneous patch will be made.
NOTE
Sewn patches on the canopy will be applied to the inside and may be
square or rectangular in shape.
When a miscellaneous canopy patch is used, cut stitching and remove
or lay aside items that may interfere with patch application. Refer to
applicable item repair paragraph for proper procedures.
(1)
Using a marking aid of contrasting color, mark a square or rectangle around area to be patched
and ensure one side of marking square or rectangle is parallel to warp or filling of fabric.
