ARMY TM 10-1670-278-23&P
AIR FORCE T.O. 13C5-26-2
NAVY NAVAIR 13-1-27
2-26. Gore Section (cont).
(3) Patching. Use a patch to repair holes which exceed 314-inch in length or diameter using the sewn patch.
(a) Limitations. The following limitations apply to the 15-foot cargo parachute.
The limitations prescribed for parachute canopy patching will be stringently
adhered to under all circumstances and without any deviations.
A patch will not be applied to a damaged area that has been previously patched.
Each gore section is limited to two patches. However, determination should be made as to the
most economical method to be used, i. e. , two patches versus one large patch or one large patch
versus a section replacement. A patch applied to a parachute canopy may extend from radial
seam to radial seam.
(b) 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.
Sewn patches on the canopy will be applied to the inside and may be square or
rectangular or triangular in shape.
When a miscellaneous canopy patch is used, cut stitching and remove or lay
aside items which 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
insure one side of marked square or rectangle is parallel to warp or filling of fabric.
2 Cut damaged area fabric along lines made in 1 above. Further cut fabric diagonally at each corner
to allow a 1/2-inch foldback in raw edges. Cut stitching and lay aside or remove any item which will
interfere with miscellaneous patch application.
3 Make 1/2-inch foldback on each raw edge. Pin and baste each foldback to complete prepared hole.
Basting will be performed using procedures in paragraph 2-18a.