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Gore Section - TM-10-1670-276-23P_77
Figure 2-42.  Patch Application, Stitch Method

TM-10-1670-276-23P Parachute Cargo Type: 26-Foot Diameter High-Velocity Cargo Parachute NSN 1670-00-872-8109 Manual
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ARMY TM 10-1670-276-23&P AIR FORCE T.O.  13C5-29-2 NAVY NAVAIR 13-1-29 2-24.  Gore Section (cont). 1 A patch will not be applied to a damaged area that has been previously patched. 2 There  is  no  limitation  to  the  number  of  patches  or  size  of  patch  to  each  canopy  gore  section  or  gore  panel. However, determination should be made as to the most economical method to be used, i.e., two or more 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 tape, vent reinforcement tape or skirt reinforcement tape.  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  which  may  Interfere  with  patch  application.    Refer  to  applicable  item  repair paragraph for proper procedures. 1 Using an authorized 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 2-17a. 4 Using 3 8 ounce muslin cloth, mark and cut a patch 2-1/2 inches wider and longer than inside measurements of prepared hole.  Insure patch material is marked and cut along warp or filling of fabric. 5 Center patch material over prepared hole and insure warp or filling of patch material matches warp or filling of fabric being patched.  Pin patch material in position. 6 Make 1/2 Inch foldunder on each edge of patch material and baste patch to prepared area.  Basting will be performed using procedures In paragraph 2-17a. 7 Remove pushpins securing item to the repair table and secure patch by stitching, using the applicable details in figure 2-42 and stitching specifics outlined in table 2-3.  Make first row of stitching completely around patch invert  canopy  and  make  a  second  row  of  stitching  around  prepared  hole.    Stitching  will  be  performed  in accordance with paragraph 2-17. 8 Replace   items   removed   for   miscellaneous   patch.      as   required,   In   accordance   with   applicable   item procedures. 2-66







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