Stabilizer construction starts with the leading edge, trailing edge and the main spar. The spar extends beyond the tip ribs to support the sheet balsa aerodynamic balances (above). Note that the use of T-pins is on either side of the balsa so as not to weaken the structure. The balsa aerodynamic balances on the stabilizer are firmly mounted against the extended main spar and the ³⁄₃₂-inch sheet balsa tip ribs. Other stabilizer ribs are ¹⁄₃₂-inch sheet balsa (below center). The pattern for the bottom, front of the rudder is cut from the plan and transferred to ³⁄₃₂-inch sheet balsa (bottom). The squared, rear portion of the balsa will be glued into the front of the stabilizer and the rounded portion will rest in a slot in the top of the fuselage.


AT A GLANCE Type:


Construction: Wing span: Wing area: Airfoil: Length:


Weight w/ motor: Wing loading:


F/F rubber scale


balsa stick and tissue 50.5 inches 240 sq. in. flat bottom 28.5 inches 167.2 grams .69 gms/sq.in.


Motor: two 30-inch loops, ¹⁄₄-inch rubber FLYING MODELS 39


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