T21 Grey Sapphire

Welcome to flight training. The TorgoenT21 Flight GMT is a one-of-a-kind timepiece that incorporates a functional E6B analog flight computer. Developed by US naval pilots in the late 1930’s, the E6B is a circular slide rule used during flight planning to calculate fuel burn, wind correction, time en route and other stats. Although modern aircrafts now use electronic systems to make these calculations, the E6B is still used in flight training to teach pilots how to manually compute these important factors.