Pratt & Whitney and Embraer celebrated delivery of the GTF™ PW1900G production engines for the first E195-E2 aircraft at Embraer’s E2 final assembly line in São José dos Campos, São Paulo, Brazil.
“We’ve got the power! The GTF PW1900G engine just arrived in São José for installation on the first production E195-E2” says John Slattery, the President & CEO, Embraer Commercial Aviation.
The E195-E2 is expected to enter into service in the second half of 2019 with Azul Brazilian Airlines.
Embraer’s E190-E2 aircraft, which is also powered by the Pratt & Whitney PW1900G engine, entered service in April 2018 with Widerøe, followed by Air Astana in December 2018.
Geared Turbo Fan (GTF) engines
In a conventional turbofan, a single Low Pressure shaft connects the fan, the low-pressure compressor and the low-pressure turbine. In this configuration, the maximum tip speed for the larger radius fan limits the rotational speed for the LP shaft and thus the LP compressor and turbine.
In a geared turbofan, a planetary reduction gearbox between the fan and the LP shaft allows the latter to run at a higher rotational speed thus enabling fewer stages to be used in both the LP turbine and the LP compressor, increasing efficiency and reducing weight.