Additionally, they are difficult to analyze accurately and pose installation and alignment problems which would not exist if the structure were in one piece.ĭon't let these introductory remarks dupe you into assuming that fittings are unimportant. They are important, indeed! Poorly made fittings can result in lost wings in flight, the engine falling out, the gear busting off and other even more serious consequences. Using the proper material for making the fittings is very important. You should abide by the designer's plans call-out. This means the correct steel alloy or aluminum alloy should be used, and in the thickness designated. Sometimes a fitting could be made of a lighter gage and still have the strength necessary for its assigned function. Substituting a lighter gage metal may result in a fitting that lacks the rigidity it needs for a particular function and location.
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