Top Flite Models Beechcraft Instruction Manual page 25

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3. Place the hinges on the line and make another
mark at the other end of the hinge to mark the exact
placement of the hinge. Do this for both hinges.
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4. Measure in from the side of the door 1/16"
[1.6mm] and draw a line as shown.
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5. Make a file by cutting a piece of plywood the
width of the hinge. Apply 180-grit sandpaper to the
plywood. Sand the door to make a 1/6" [1.6mm]
groove in the door at the location of each hinge.
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6. Roughen the fiberglass with sandpaper in the
area the hinges will be glued to the doors. After
sanding, clean the area with rubbing alcohol.
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7. Apply a couple of drops of lightweight oil to
the hinge pin to prevent glue from getting into the
hinge. Glue the hinges to the door.
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8. Repeat steps 1-7 for the other door.
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9. Place the door in position on the fuselage. Mark
the hinge location onto the fuselage. Then, sand the
fuselage to make a 1/16" [1.6mm] groove the same
as was done on the doors. Do this for both doors.
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10. Test fit the doors in the opening. It may be
necessary to sand the edges of the doors to fit when
the doors are closed. Sand as needed. Apply a drop
of oil to the hinge to prevent glue from getting into the