FAA reveals fuel-saving feature of P&WC’s in-development PW220A turboshaft

The Federal Aviation Administration (FAA) has disclosed a novel fuel-saving capability within Pratt & Whitney Canada's (P&WC) upcoming PW220A turboshaft engine design. This innovative feature centers around an “idle cruise regime” (ICR), specifically tailored for twin-engined helicopters during their cruising phase. According to a regulatory document, the ICR will allow a helicopter to operate using only one of its engines while maintaining flight speed. This unique operational mode is designed to significantly reduce fuel consumption by minimizing power requirements. The FAA’s revelation highlights P&WC’s efforts to enhance efficiency and sustainability in modern rotorcraft technology.