dealt with in this technique is that of the amount of shrinkage  that occurs during the repair. The larger the area of the  panel, the more shrinkage occurs. The following procedure  describes a panel replacement on a block constructed, non- continuous line canopy. A bias constructed canopy is similar  but more “fullness” needs to be allowed for in the cutting of  the panel and sewing. NOTE:  Always grab the work by the threads and remove  directly to the rear when removing it from the machine to  avoid bunching.  [Figure 7-33] Figure 7-32.  Wear the damaged parachute as if it were a mitten while  cutting and you will not cut the patch that was just carefully placed. 1.  Lay the canopy inside out on the pin board. Pin the  canopy by placing tension on the seams and making  sure they are straight. 2.  Cut a piece of fabric larger than the damaged panel by  approximately 6 inches around all sides. Make sure  that the weave of the panel matches that of the canopy.  For a block constructed canopy, the bolt of fabric runs  parallel down the radial seams of the canopy. For a  bias constructed canopy, the bolt runs parallel to the  diagonal seams. 3.  Trim one side of the panel to align the ripstop weave  with the cross seam. 4.  Fold over the edge of the panel fabric approximately  ¾ inch and pin in place aligning the edge with the  outside of the cross seam.  [Figure A] 5.  Smooth out the panel fabric over the damaged area  and align the opposite edge over the opposite cross  seam. Cut the panel fabric approximately 1 inch wider  than the panel. Fold the edge under and pin in place.  You now have the top and bottom cross seams of the  panel in place.  [Figure B] •  Applicable products: All round canopies—main  and reserve •  Description: Complete replacement of a panel section  of a gore of a round canopy •  Authorized repairmen: FAA Master Parachute Rigger  •  Materials: E thread—color to match; fabric—type and  color to match •  Machines: 301 straight stitch—light duty 7–11 SPI •  Equipment: Scissors, seam ripper, marking pencil,  6-inch ruler, large pin board, and straight pins 6.  Stitch the outside row of stitching starting and finishing  approximately 1 inch short of the radial seams. 7.  Take the panel fabric along the radial seam and trim  approximately ¾ inch from the outside edge of the  radial seam. Fold under and pin in place. Repeat for  the opposite radial seam.  [Figure C] Figure 7-33.  Always grab the work by the threads and remove directly  to the rear when removing it from the machine to avoid bunching. Round Canopy—Panel Replacement Procedure This process of replacing the panel is in reality a panel patch  and is similar to that used in making a basic canopy patch.  Because of the time and difficulty involved in removing and  replacing the actual panel, that technique is best left to the  canopy manufacturer. This technique is the more commonly  accepted practice for major panel repair. The major issue to be  7-21