KAHN INC.
AVENTURA, FLORIDA

was another result of Kahn's involvement with aerospace test equipment. Operating like centrifugal pumps, hydraulic dynamometers use water as a medium for absorbing and measuring the power output of engines, turbines and electric motors. Kahn hydraulic dynamometers are now used in the aerospace, automotive and power generation industries for development, production and post-overhaul performance testing of a wide variety of prime movers. Interesting applications include a large dynamometer used for development and endurance testing of LM2500 marine gas turbines, which power the U.S. Navy's DD 963 class destroyers. Commissioned in 1971, this dynamometer was capable of absorbing 37,000 kW (50,000 hp) at speeds up to 4500 rpm. With a dry weight of over 36,000 kg (80,000 lb), it was the largest hydraulic dynamometer manufactured in the United States up to that time. In contrast to conventional hydraulic dynamometers, this unit was designed to provide virtually unlimited service life due to its cavitation-free smooth disc power elements. When it finally was replaced with a new and more powerful Kahn dynamometer after 20 years of continuous service, it had logged over 27,000 operating hours with its original power elements. The Kahn Companies The Kahn Companies consist of three corporations operating as a group. Founded in 1945, The Kahn Companies are privately held technical product manufacturers. Present product lines include pneumatic, hydraulic and electronic equipment marketed to a wide variety of industrial customers, including the aerospace, electronic, petrochemical and process industries, as well as general manufacturing firms. The Kahn Companies are international in sales, selling products worldwide through both local representatives and directly.