Pilot Directional Indicator for C-1 Autopilot, New Old Stock, WWII B-29, B-24, B-17
This Pilot Directional Indicator (PDI) was used in WWII bombers and naval aircraft. It measures 3.25 inches in diameter and 3 inches deep, and is in very good condition for its age.
- The unit is in very good condition for its age.