6/11/2023 0 Comments Bell 427 flight manual for dummiesA single stage power turbine drives a reduction gearbox comprised of two stage helical gear train (6,000 RPM). The PW207 is a lightweight, free turbine turboshaft engine incorporating a single stage centrifugal compressor driven by a single stage turbine. This evolution is in keeping with the maintenance approach promoted by P&WC, and used effectively over the years, which is based on a philosophy of preventive maintenance through engine condition monitoring. The first helicopter with a full authority digital engine control (FADEC) system on the PT6B-36, and with the first integrated ECMS on the PW207. In addition, its digital engine control system incorporates built-in engine condition monitoring system (ECMS) functions. The PW207 engine delivers increased power through component and material improvements and by incorporating compressor treatment for enhanced handling capability. The PW206 engine family, rated at a nominal 600 shaft horsepower (shp), evolved to the PW207 engine, with a nominal 700 shp. Today, the PW200 series engine is installed in a broad range of new generation, light-twin helicopters around the world, including the Agusta A109E, Bell Model 427, Eurocopter EC135P1, MDHI MD Explorer and the Kazan Ansat. In the late 1980’s, Pratt & Whitney Canada (P&WC) launched the PW200, a new line of helicopter turboshaft engines.
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