Carl Goldberg GBGA0040 User Manual

Page 14

11. Using no glue, set ribs #7, 9,12, and 15 in their

respective T.E. notches, hooking them over the

spars as you go.

Making sure the T.E. and the ribs are correctly

aligned over the plan, pin in place.

Glue the ribs to the spars and the T.E.

12. Pin the outboard L.E. in place and glue it to the

ribs.

13. One at a time, position and then glue the

remaining ribs # 8 through #14 in place. Let dry

thoroughly.

NOTE: IF YOU ARE CONSTRUCTING A ONE-

PIECE WING, CONTINUE AT STEP 14. IF YOU

WISH TO BE ABLE TO REMOVE THE WING TIP,

REFER TO THE FOLLOWING OPTIONAL

INSTRUCTIONS.

Remove the sheet from the wing and, using a

metal straight edge, carefully trim the sheeting

so that, when the piece is laid flat, it just fits

between the L.E. and the spar.

Following the same procedure, trim and fit two

more sheeting pieces for the bottom center

section.

Fit the first sheeting piece between the spars

and, holding it flat to the building board, Super

Jet the edges to the spars.

Install the other two sheeting pieces in the

same manner.

9. Position ribs #2, 3, and 4, making sure to align

the rib fronts over the front guide lines on the

plan.

When satisfied with the alignment, glue to the

L.E., the bottom sheeting, the spars, and the

T.E.

10. Pin the outboard main spar in place over the

plan. Then set the rear spar and the T.E. in

place.

IMPORTANT! The outboard T.E. has no notch at one

end. This unnotched end must be at the polyhedral

joint, as shown.

DO NOT GLUE
IN THIS AREA

POLYHEDRAL
JOINT

NOTCHED
END