Sigma-Tek Unlit Airspeed Indicators TSOd

Single Scale Airspeed

These airspeed indicators have unrestrained movements.These instruments are actuated by ram air and ambient atmospheric pressure obtained from the aircraft pitot and static pressure systems. A moveable pointer and a fixed dial indicate airspeed with the zero index at the 12 oclock position. Temperature compensation is internal and there is no external zero adjustment. Pointer damping is internally adjustable.

Note: Designed to meet the requirements of FAA TSO-C2b for a Type I instrument.

Dual Scale Airspeed EA5171

Dual Scale Airspeed EA5172

Dual Scale Airspeed EA5173