PW1500G GTF

Descripción general

The Pratt & Whitney PW1500G es la variante Geared TurboFan desarrollada para el Airbus A220, anteriormente conocido como el Bombardier CSeries. Es el único motor disponible para la A220 family and tiene la distinción de ser el primer motor GTF en entrar en servicio comercial — precediendo al más grande PW1100G on the A320neo por unas pocas semanas. The PW1500G's gearbox-driven fan achieves a bypass ratio of 12:1 in an engine class where competitors typically managed 6:1, contributing to noise levels substantially below Stage 4 requirements.

El rendimiento acústico del motor es particularmente notable. Pratt & Whitney ha descrito el PW1500G como el motor más silencioso en su clase de empuje, una característica que ha hecho del A220 atractivo para aerolíneas que buscan operar en aeropuertos sensibles al ruido con restricciones de toque de queda. The engine comparte su arquitectura de núcleo y tecnología de caja de engranajes con el PW1100G, permitiendo economías de escala en fabricación y mantenimiento en ambos programas.

Especificaciones técnicas

Variantes

• PW1519G: Lower-thrust variant at 19,000 lbf for the A220-100 in lighter configurations.
• PW1521G: Standard A220-100 variant at 21,000 lbf.
• PW1524G: Higher-thrust variant at 23,300–23,500 lbf for the heavier A220-300, accommodating the stretched fuselage and increased maximum take-off weight.

Aplicaciones en aeronaves

• Airbus A220-100
• Airbus A220-300

Historia del desarrollo

Pratt & Whitney launched the PW1500G in the context of the Bombardier CSeries programme, which began in the late 2000s. The engine first ran in 2012 and received Transport Canada and FAA certification in 2015 junto con the CSeries aircraft. Swiss International Air Lines placed the CS100 (A220-100) into revenue service in July 2016, making the PW1500G the first Geared TurboFan to operate commercially. When Airbus acquired a majority stake in the CSeries programme in 2018 and rebranded it as the A220, the PW1500G continued as the sole engine choice. The engine has benefited from the same fleet-wide inspection and remediation programme affecting other GTF variants, with Pratt & Whitney addressing powdered metal contamination issues identified in 2023.