Great Planes Extra 300S 60 Kit - GPMA0236 - Manual (Page 16)

❏ ❏ 13. From the 3/8" x 2" x 8" balsa block, fit and glue
the wing bolt filler between the TE of R1 and R2. Sand
the wing bolt filler to the contour of ribs R1 and R2.
❏ ❏ 14. Cut the opening for the servo in the sheeting using
the servo tray as a guide.
❏ ❏
15. Fit your aileron servo in place and trim the sheeting
from around the rubber grommets on your servo. Note: You
need approximately 1/16" of clearance between the servo
and the sheeting.
❏ ❏
16. Trim the jig tabs off the ribs and sand the ribs smooth.
Be careful not to sand into the ribs, changing the shape of
the airfoil.
❏ ❏ 17. Use a razor plane and/or a sanding block to shape
the sub LE so it aligns with the tops of the ribs and the
shape of the airfoil.
❏ ❏
18. Using a razor saw and a hobby knife, trim the
spacer tabs off of R1, R2 and R2A.
❏ ❏
19. Sand the bottom TE sheeting as shown in the sketch.
If this is your first time through, go back to the start of Build
the Wing Panels on page 12 and build the right wing half.
❏
1. From the die-cut 1/8" ply pieces, make the five wing
jigs as shown in the photo above.
❏
2. Without using any glue, test join the wing panels on
the five wing jigs as shown in the photos for steps 2 and 3.
Make sure the ends of the spars and TE’s join without
any gaps.
Join the Wing Panels
16