Wing Tubes and Plug-in Wing Fastening
I have read several forum threads over the past decade or so on the topic of plug-in wings but the one issue that I've never seen addressed is fastening the wings so that they do not come off in flight. I know about wing tubes, servos, wires, push-rods and connectors but, I have never heard anything conclusive regarding the fastening of the wings themselves or seen any photos or diagrams of the methods in any book or on any website.
What bolts work best? Nylon or steel? What are the bolts fastened to? What reinforcements to the wings do I need to consider?
Is this system of wing tubes and bolts the only method of fastening the plug-in wings to the fuselage? I remember Byron Originals used to have a system of metal tabs and slots.
I'm seriously considering this option on my next project (a scale twin-engine plane) and my plan so far is to fix the center section of the wing along with the two engine nacelles to the fuselage and have the two outer wing sections (the part of the wing from the nacelle to the wing tip) plug-in to the nacelle. Are there any considerations that I have to make when fastening the wings to the nacelles? Should I extend the wing tubes through the nacelles and the part of the wing that will be permanently mounted to the fuselage and on through the fuselage to strengthen the wing because I'm dividing the wing into three parts?