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It is one of three engines for the 777-200 and -200ER, and the exclusive engine of the -200LR, -300ER, and 777F. It was the largest jet engine, [3] until being surpassed in January 2020 by its successor, the 110,000 lbf (490 kN) GE9X, which has a larger fan diameter by 6 inches (15 cm). However, the GE90-115B, the most recent variant of the ...
[15] [16] The block test engine ran at its operational limits, at triple red-line conditions: maximum fan speed, maximum core speed, and maximum exhaust gas temperature. Icing tests started in Winnipeg at the end of 2017. The initial 777X flight-test engines were shipped in 2018 for an initial 777-9 flight in early 2019. [17]
The PW1500G variant, designed for the Airbus A220, became the first certified engine in 2013. The program cost is estimated at $10 billion. Unlike traditional turbofan engines where a single shaft connects all components, forcing them to operate at the same speed, the PW1000G has a gearbox between the fan and the low-pressure core. This allows ...
Data from FAA General characteristics Type: Twin spool Turbofan Length: 105.8 in (269 cm) (flange to flange) / 130.44 in (331.3 cm) (fan spinner face to aft tail cone) Diameter: 50 in (130 cm) fan case Dry weight: 3,135.7 pounds (1,422.3 kg) (dry) Components Compressor: 24-blade, single-piece Single-stage fan, 2-stage LP and 8-stage HP compressor Turbine: 2 stage HP and 5 stage LP turbine LP ...
The 280 cm (110 in) fan has 26 wide chord titanium fan blades. [8]The Trent 800 is an axial flow, high bypass turbofan with three coaxial shafts. The fan is driven by a 5-stage axial LP turbine (3300 rpm), the 8-stage IP compressor (7000 rpm) and the 6-stage HP compressor (10611 rpm) are each powered by a single stage turbine.
For example, the low-pressure shaft rotates at the same speed for both the CFM56-2 and the CFM56-3 models; the fan diameter is smaller on the -3, which lowers the tip speed of the fan blades. The lower speed allows the fan blades to operate more efficiently (5.5% more in this case), which increases the overall fuel efficiency of the engine ...
The GE Passport is a high bypass ratio turbofan. The engine is a twin-spool, axial-flow turbofan with a high bypass ratio of 5.6:1 and an overall pressure ratio of 45:1. The front fan is attached to the three-stage low-pressure compressor; the 23:1 pressure ratio 10-stage high-pressure compressor includes five blisk stages for weight reduction.
The General Electric CF34 is a civilian high-bypass turbofan developed by GE Aviation from its TF34 military engine. The CF34 is used on a number of business and regional jets, including the Bombardier CRJ series, the Embraer E-Jets, and Comac ARJ21. [2] [3] In 2012, there were 5,600 engines in service.