Build The Wing; Build The Bottom Of The Wing - Top Flite Contender User Manual

BUILD THE WING

Build the bottom of the wing

1. Cut the wing plan on the dashed line. Tape the
two wing plan halves together to form the full plan for
the wing.
2. Work on a flat surface over the plan. Pin or tape
the wing plan to the building board and cover the
plan with Plan Protector.
3. When building the wing it is important to note that
the wing is being built upside-down over the plan.
4. Locate four die-cut 3/32" [2.4mm] balsa W-2
ribs and four die-cut 1/8" [3.2mm] ply W-2A
doublers. Glue a W-2A doubler to each W-2 rib with
6-minute epoxy. Make sure that you make two for
the left wing and two for the right wing.
5. After the epoxy has cured, remove the area on
W-2 that will hold the landing gear block. Do this on
all four of the assemblies that you just glued together.
6. Locate two die-cut ply W-1 ribs and two die-cut
ply W-1B doublers. Glue a W-1B doubler to each
W-1 rib with 6-minute epoxy. Make sure that you
make one left side and one right side when gluing
them together.
7. Cut the two 1/4" x 3/8" x 48" [6.4 x 9.5 x
1220mm] basswood wing spars to the length shown
on the plan. Pin one of the wing spars to the plan.
Make sure that the pins will not be in the way for
placing any of the ribs on the spar.
8. Position ribs W-1, W-2 and W-3 on the wing
spar at the locations indicated on the plan. Make
11
sure when you place the ribs that all of the ribs have
the jig tab in contact with the building board. Place
the remaining wing spar in position on the bottom of
the wing in the notches on the ribs W-1, W-2 and W-
3. When positioning the ribs be sure the ribs are
perpendicular to the building table. When you are
satisfied with the fit glue the ribs to the bottom wing
spar only. It is important to remember you are
building the wing upside down. Be sure to glue only
the bottom wing spar.
9. Locate two 9/16" x 7/8" x 24" [14.3 x 22.2 x
584mm] balsa TE sticks. Glue the two TE sticks
together where they will meet at the center of the
wing. Test fit the TE on the wing jig tabs. When you
are satisfied with the fit glue the TE to the end of the
ribs only! Do not glue the TE to the jig tabs.
10. Cut off the excess TE material outboard of the
tip rib.