Almost all pilots today still learn to fly on the old "steam" gauges, not on glass, and many glass cockpits still have the basic analog gauges as a backup. htt

Almost all pilots today still learn to fly on the old "steam" gauges, not on glass, and many glass cockpits still have the basic analog gauges as a backup. http://en.wikipedia.org/wiki/Flight_instruments#Basic_Six http://en.wikipedia.org/wiki/Flight_instruments#Basic_Six