Figure 4-l8.--Cutting the patch from preformed laminate.
After the damaged area has been cut away, cut the
patch from a section of preformed laminate of about
the same thickness as the area being repaired. (See fig.
4-18.) Center the preformed laminate over the area
being repaired and mark off the area to which the
scarfing will extend, as shown in figure 4-19. If the
opposite side of the area being repaired is accessible,
make a second chalk mark conforming to the hole size
on the preformed patch, as shown in figure 4-18. This
delineates the extent of the scarfing to be done on the
preformed patch. In case the opposite side is
inaccessible, a template may be required to mark off
this area to which the scarfing must extend on the
patch in order for it to fit. Scarf the area around the
hold so that a gradual taper extends back to the chalk
Figure 4-19.--Delineating the area where the scarf will
mark, as shown in figure 4-12. Repeat this procedure
extend on the area being repaired.
Figure 4-20.--Tailoring reinforcement. Laminate has been scarfed to fit level on the area to be repaired.