SIGMA-TEK HEADING REFERENCE DIRECTIONAL GYRO 4000HR-1

Sigma-Tek Heading Ref series Directional Gyro 4000HR-1. The 4000HR air-driven directional gyro 1U262-007-33 has the functionality and reliability of the industry standard 4000B, and a heading reference bug from the 4000C autopilot model. With this Sigma-Tek Heading Ref series Directional Gyro 4000HR-1 pilots find the heading reminder a valuable feature whenever the cockpit is busy during heavy ATC traffic. Setting a new heading during a cross-country flight eliminates the tedious math associated with navigational crosschecks.