Comment by Animats

> I recall concerns from Boeing engineers when they switched to carbon fiber fuselages, that a strike would be far more serious than before, with Aluminum fuselages.

It's a serious problem for carbon-fiber wind turbine blades. Fiberglas is an insulator, and doesn't have lighting problems. Aluminum is a good conductor, and doesn't have lighting problems as long as there's a good a path to ground through the hub. But carbon fiber is a resistor, so conducting a lightning strike generates heat. Some copper or aluminum wire has to go into the turbine blades to bypass this.