PW127A

The PW127A is a turboprop engine manufactured by Pratt & Whitney Canada. It is part of the PW100 family of engines, which are widely used on regional airliners and utility aircraft. The PW127A is a derivative of the earlier PW124 engine, featuring increased power output and improved fuel efficiency.

This engine is designed for twin-engine configurations and typically powers aircraft such as the ATR 72, Bombardier CRJ700/900/1000 series (though these often use other PW100 variants), and the Embraer E-Jet family (again, specific variants may differ). The PW127A's design emphasizes reliability, low operating costs, and environmental performance, meeting stringent noise and emission regulations.

Key features of the PW127A include its two-spool configuration with a three-stage gas generator turbine and a four-stage power turbine. It incorporates advanced materials and aerodynamic designs to optimize performance across various flight conditions. The engine's modular construction facilitates easier maintenance and overhaul. Its robust design has contributed to its widespread adoption and long service life in demanding operational environments.