Great Planes Extra 300S 60 Kit - GPMA0236 - Manual (Page 10)

❏ ❏
10. Place the sheeted side of the stab on your work
bench and trim the sheeting around the outer edges of the
framework.
❏
11. Repeat steps 9 and 10 to sheet the remaining side of
the stab.
❏ ❏ 1. Make the LE using a 5/16" x 1/2" x 14" balsa stick
(leave 1/16" of length at both ends).
❏ ❏ 2. Make the root end, cut from a 5/16" x 1" x 12"
balsa stick.
❏ ❏
3. Make the TE using a 5/16" x 5/16" x 36" balsa stick
(leave 1/16" of length at both ends).
❏ ❏
4. Make the tip and ribs using a 5/16" x 5/16" x 36"
stick.
❏ ❏
5. Make the diagonal ribs using a 1/8" x 5/16" x 36"
balsa stick.
❏ ❏
6. Remove the elevator from the plan and inspect all
glue joints. Add CA where necessary. Sand the LE and TE
flush with ends.
❏ ❏
7. Add 1/8" balsa to both ends of the elevator. Sand
flat and smooth with a bar sander and 220-grit sandpaper.
❏
8. Build the second elevator the same as the first.
Note: Because it is not necessary to build on the fuse
plans we reduced them to 75% so that they are easier to
use as a reference while building the fuse. Make sure to
build the fin and rudder over the full-size drawing, not
the reduced plan.
❏
1. Make the LE and TE using 3/16" x 1/2" x 14" balsa sticks.
❏
2. Make the fin tip using the 3/16" x 1/2" balsa stick
remaining from step A.
❏
3. Make the fin base using the leftover 3/16" x 1-1/2"
x 9" stick remaining from the stab LE doubler assembly.
❏
4. Make the 3/16" fin ribs and cross trusses using the
leftover 3/16" x 3/16" stick from the stab rib assembly.
❏
5. From 3/16" x 3/16" balsa fit and glue the bottom key
in place.
❏
6. Remove the fin from your building board and inspect
all the glue joints. Add CA where necessary. Use your bar
sander to sand the top of the leading and trailing edges
even with the tip of the fin. Sand the bottom of the leading
edge even with the base. Sand the entire fin flat and
smooth with your bar sander and 220-grit sandpaper.
❏
7. Sheet both sides of the fin with the 1/16" fin sheets
you made earlier using the same technique you did with
the stab.
❏
8. From leftover 1/16" sheeting, sheet the fin post.
❏
9. Trim and sand the sheeting flush with the framework.
Fin Building Sequence
Elevator Building Sequence
10