David A. Baldini

Aerosonic LLC engages in the manufacturing and sale of aircraft instruments and sensors. It designs and manufactures mechanical and digital altimeters, airspeed indicators, rate of climb indicators, microprocessor controlled air data test sets, and other flight instrumentation. Aerosonic also designs and manufactures angle of attack stall warning systems, integrated multifunction probes, which are integrated air data sensors, and other aircraft sensors and monitoring systems. The company was founded by Herbert J. Frank in 1953 and is headquartered in Clearwater, FL.

Avionics Specialties, Inc. manufactures aircraft instrumentation. It manufactures integrated air data systems, test equipment, aircraft stall warning and angle of attack systems. The company was founded in 1942 and is headquartered in Clearwater, FL.