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Recent developments in engine designs have produced engines that have shorter response time, thus making it increasingly difficult to control speed. Dynamic response of the engine and governor system is usually neglected when designing a governor. The recommended procedure for designing an engine governor is to develop a preliminary static design of the governor, analyze the engine using frequency response, mathematically analyze the static design of the governor, similate the two analyses on an electrical analog computer, and then determine from the computer results the changes that are necessary to get a satisfactory governor design.