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Directional Gyro with "Heading Reminder" bug
One popular feature available on several models of the Sigma Tek directional gyro is the heading reminder bug. Previously only found on autopilot gyros, the heading bug reduces pilot workload and enhances safety.
Sigma Tek directional gyros are selected as standard equipment by aircraft manufacturers worldwide. Air-operated heading indicator displays compass headings throughout 360 degrees. Functions during dives, climbs or banks up to 55 degrees displacement from level flight. Reset gyro to magnetic compass with caging knob. Panel size: Std. 3 1/8" Dia., 6 3/4" Long. Vacuum Gyro Power: 4 to 5.2 in. Hg. Vac. or pressure. Interchangeable with AN5735.