airpseeds
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Sigma Tek, Inc.
Sigma Tek Instruments and Avionics!
gyro, dg, hsi, nav, air pump, comm, adf, aircraft instruments, gyroscope, piston pump, aeon, ah, engine instruments, air gyro, aircraft diagnostic systems, airpseeds, arc avionics, attitude gyro, audio control panel, directional gyro, horizon gyro, radio control panels, sigma tek, sigmatek, vhf communication, vhf navigation
