The VAROC Air Dynamometer is used by military and commercial organizations throughout the world and has established a new standard for testing aircraft and industrial gas-turbine engines. Two models, the VAROC-250 and VAROC-35, provide an accurate, easy to use, easy to maintain, compact, lightweight, portable, and highly reliable test capability to measure the performance of over forty turboshaft engines that range from 50 hp to 25,000 hp.

The patented design using ambient air as the fluid medium provides significant advantages over all other types of dynamometers. The VAROC Air Dynamometer can be installed in fixed test-cell installations or used in mobile field applications without extensive support equipment. Unlike water brakes, the VAROC can operate in any climate, including extreme temperatures, while eliminating a previous source of environmental pollution.

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U.S. Patent Nos. 4744724, 5345827, 5426986
VAROC is a registered trademark of Concepts NREC.