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10. Starting at Station, 6 and working toward the tail, cut, fit, and install the 3/4" square cross pieces and diagonals per Figure 1-8, using the half-round "B" gussets of Figure 1-4 nailed and glued to the OUTER faces of the longeron ONLY. The gussets at Station 6 are only temporary, and are nailed in place but not glued. Do not install cross pieces aft of Station 8 at this time. 11. Starting again at Station 6 and working aft, install the diagonals per the cross-section views of Figure 1-9 with two type "A" gussets at each end per Detail A of Figure 1-4. Note 3/36" holes drilled for drainage. Cut 3/4" square notches in the middle of Type "B" gussets and doublegusset remaining Figure 1-8 diagonals per Detail B of Figure 1-4. Drill drain holes in bottom gussets of lower longerons before installing notched top gusset. 12. Build up the rudder post per Figure 1-10. Lay out the proper shape on a piece of 1/8" plywood and cut to exact outline. Glue a 3/8" square strip of spruce down each side. Since it can't make the sharp bend at the bottom, let it project straight, and fit bottom piece of 3/8" solid wood as shown. Add 2-inch filler blocks to back-up hinge bolts where shown, and glue on top plywood. This is again Box Structure, requiring inside varnishing and FAA approval per Note of Step 7. 13. Using C-clamps at top and bottom, clamp 3/4" x 1-1/2" uprights temporarily in place at Station 11 (the upright on the left side is 5/8" x 1-1/2"). Bevel the rear edges so that they fit squarely against the rudder post when it is held in place. The sides of the rudder post will also have to be beveled so that the plywood projecting past the Station 11 uprights fits the post snugly. 14. Cut a piece of 1/8" plywood to fit the area between the Station 9-10 diagonal and the rear of the Station 11 upright, and glue it in place on the LEFT inside of the fuselage. The purpose of this is to reinforce the plywood so that an access hole can be cut in later. 15. Using C-clamps from the top and the rear, glue in the Station 11 up rights. While they are drying, clamp and glue in the two half-round 3/4" plywood blocks of Detail I, Figures 1-2 and 1-11 and glue 2" triangles of 3/4" plywood into the Station 9 corners per Figure 1-11. 16. After the clamps of Step 15 have been removed, glue and clamp in the rudder post, being sure that it is perpendicular in both axes. While it is drying, add the 3/4" square cross piece shown 21" ahead of the rudder post on the top longeron layout of Figure 1-8 and cut and fit the Station 9 1" x 2" hardwood tail spring bolt support. Anchor this with 3/4" plywood triangles notched and fitted per Figure 1-1l. 17. Fit 3/4" square cross pieces between top and bottom longeron pairs tight against the rudder post per Figures 1-8 and 1-11. Because of the slope of the lower longerons, it will be necessary to bevel the bottom cross piece so plywood can fit across the longerons later. Clamp the cross pieces to the rudder post while the glue dries. Page 1-13
Page 1 and 2: 50 th Anniversary Edition edited by
Page 3 and 4: Introduction to the 50 th Anniversa
Page 5 and 6: EDITOR’S NOTES FOR THE 50 th ANNI
Page 9: Table of Contents (RJW Note: When g
Page 13 and 14: instead of under it, the upper wing
Page 15 and 16: the ends with space available for t
Page 17 and 18: Don't open the varnish can. Poke tw
Page 19 and 20: CONSTRUCTION PROCEDURES Those who a
Page 21 and 22: 1 SECTION 1 - THE FUSELAGE The all-
Page 23 and 24: FUSELAGE LAYOUT The main requiremen
Page 25 and 26: Page 1-5
Page 31: Page 1-11
Page 45 and 46: NOTE The wing hinge support-tubes c

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