1949: Convair’s T-29 Flying Schoolroom makes its first flight. Providing navigator training at 14 stations, each station had access to a map table, loran scope, altimeter and radio compass panel. In the roof of the fuselage are four astrodomes which students used to take sights with sextants for navigation purposes. There were also five drift meters used to determine the “drift” of an aircraft by visual sightings of points on the ground.