Pratt & Whitney Canada PW210

The PW210 is a helicopter turboshaft engine from Pratt & Whitney Canada, an enhanced development of the PW200 family in the 1,000 shaft horsepower class. It trades the PW200 single-stage centrifugal compressor for a two-stage design, driven by a single-stage turbine with a reverse-flow combustor, and it adds a two-stage free power turbine, a front-mounted combined reduction and accessory gearbox and a dual-channel full authority digital engine control. The enhancements bring lower fuel consumption, lower emissions and power from 800 up to 1,100 shaft horsepower. The manufacturer lists the PW210A for the Leonardo AW169 and the PW210S for the Sikorsky S-76D. Its modular design, with only five major rotating components, allows on-condition maintenance and easy access to line replaceable units.