Lightning is striking again (with apologies to Lou Christie's 1965 song, "Lightnin' Strikes"). When flying a mostly aluminum airplane any lightning strike -- while exciting -- will have its energy spread across the extensive aircraft skin area, thus reducing the amps-per-square-inch to relatively low levels. Meaning your toupee might pop up, but it won't smoke. Composite aircraft, with little metal, need lightning protection engineered into their composite designs. This is typically accomplished by incorporating what into or on the airframe?
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