Talk:Longeron

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Frames?[edit]

"The longeron system also requires that the fuselage frames be closely spaced (about every 4 to 6 inches). "

In this passage, are frames synonymous with formers? -- Paul Richter 04:09, 21 December 2006 (UTC)

I am a aircraft strucrural engineer and haven't heard the term "formers" used except for ribs in an aircraft wing. Skin is directly fastened to wing ribs so it is accurate to say that they "form" the shape of the wing. So the destinction could be that skin directly attaches to formers whereas skin does not attach directly to frames (also called belt frames or rings).
In typical frame and stringer construction the frame is the inboard most member upon which the stringers are attached. The stringers may be directly fastened to the frames or float above them. If the stringers float then they are attached with stringer tie clips (sometimes generically called standoffs). Finally, the skin is fastened to the stringers.Jebix 21:40, 3 March 2007 (UTC)