Great Planes Extra 300S 60 Kit - GPMA0236 - Manual (Page 18)

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11. Trim the sub LE and the sheeting flush with the sub
ribs and the dowel plate.
Note: While sheeting the top of the wing it is not necessary
to put the jigs under the whole wing. It is only necessary to
put the jigs under the wing half you are sheeting.
❏ 1. Put the wing back on the building jigs for the next 6 steps.
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2. Make marks on the ribs 3/8" in front of the aft spar,
the same as you did on the bottom of the wing.
❏ ❏ 3. Align a 1/16" x 3" x 36" balsa TE sheet to the
marks you just made, and trim the end of the sheet to the
angle at the center of the wing.
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4. Glue the TE sheet in place, aligning it with the
center of the wing and the marks you made in step 3. Note:
It is necessary to move the center jig over slightly so the
sheeting can align with the marks you made and extend
over the bottom TE sheeting.
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5. Lift the wing off the building board and trim the
sheeting the same as you did on the bottom of the wing.
Save the bigger piece for the aileron.
❏ 6. Repeat steps 2-5 for the other wing half.
❏ ❏
7. Put the wing back on the jigs again. Glue the 1/16"
x 4" x 32" balsa LE sheeting to the spar, aligning the TE of
the sheeting to the center of the spar.
❏ ❏
8. Glue the sheeting to the ribs and sub LE as you
did on the bottom of the wing.
❏ ❏ 9. Trim the sheeting flush with R10, the sub LE, the
ply sub rib and the dowel plate.
❏
10 Repeat steps 7-9 to add the LE sheeting to the other
wing half.
Sheet the Top of the Wing
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