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Showing posts with the label struts

Wing struts

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 Struts are made according to the plans with bamboo skewers and 1/8"x1/2" trailing edge: With the wing braced to the fuselage and verified to be square and level I glued the struts together per plans. The front and back struts are glued with epoxy: The connectors as the strut tips are small automotive cable connectors. The blue will match the covering color of the fuselage, one end matched the skewer diameter, and the other end has a metal loop that exactly matched the #4-40 screws I used to secure the struts: A view of the finished and sanded struts connecting wing and fuselage. The #4-40 nylon screws fit into blind nuts embedded into the side of the fuselage and into gussets under the wing:

Completing the wing

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The wing has no dihedral so attaching the two panels was relatively straight forward. I cut a dihedral brace from 1/16" light plywood and fit it into a slot cut into the main spars. The slot runs through the first bay and the brace then fits between the spars in the second bay: The completed wing with both panels glued into one: Wing attachment to the fuselage uses a setup that has a "hook" in the front and two nylon screws in the back. The hook is make of 1/16" light ply with 1/8" balsa filler in between, and is glued to the dihedral brace. I also added a thin ply strip to the top of F2 that centers the hook and prevents it from sliding sideways: The wing is braced to the top of F3 by two #6-32 nylon screws. The crews go directly into the 1/8" triangle gussets without any blind nuts. There was no space for the blind nuts and the hole in the gusset is threaded and reinforced with CA to preserve the threads: