Pratt & Whitney PW6000
Turbofan aircraft engine
From Wikipedia, the free encyclopedia
The Pratt & Whitney PW6000 is a largely-retired high-bypass turbofan jet engine designed for the Airbus A318 with a design thrust range of 18,000–24,000 lbf (80–107 kN). Due to disappointing performance, this engine was a commercial failure and all airframes being powered by PW6000 have been retired by 2019.
| PW6000 | |
|---|---|
 | |
| Type | Turbofan |
| National origin | United States |
| Manufacturer | Pratt & Whitney |
| First run | 21 August 2000 |
| Major applications | Airbus A318 |
| Status | Withdrawn from service |
| Developed from | Pratt & Whitney PW2000 |
| Developed into | Pratt & Whitney PW1000G |
Design and development
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Pratt & Whitney designed the engine with minimum complexity to significantly reduce maintenance costs and achieve weight and fuel consumption savings. However, tests revealed that the initial five-stage high compressor based design did not meet promised fuel burn performance. As a result, many of the original customers switched their orders to the rival CFM56-5. To address the problem, Pratt & Whitney re-certified an updated design utilizing a six-stage high compressor designed by MTU Aero Engines in order to achieve promised performance. The German company manufactured the high-pressure compressor and the low-pressure turbine. The HP compressor is driven by a single-stage turbine. On the LP spool a three-stage turbine drives a single-stage fan and a four-stage LP compressor.
The engine made its first flight August 21, 2000 on a test aircraft flown from Plattsburgh International Airport (KPBG), successfully completing a 1-hour-20-minute flight.[1] The engine final assembly line is located at MTU Aero Engines at their location in Hanover, Germany.
LAN Airlines confirmed an order for 15 Airbus A318 aircraft, for a total of 34 engines (30 installed and 4 spares) powered by PW-6000 engines on 15 August 2005. In addition, LAN signed with Pratt and Whitney to power up to 25 option aircraft. If LAN exercises all options it would mean an additional 56 (50 installed and six spare) engines.[citation needed][needs update]
Prior to the LAN order, 84 CFM56-5 powered Airbus A318 aircraft had been ordered, with 28 was in service as of December 2005[update].[needs update]
Applications
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Specifications
Data from [2]
General characteristics
- Type: Two-spool high-bypass turbofan
- Length: 108 in (2.7 m)
- Diameter: 56.5 in (1.44 m)
- Dry weight: 5,046 lb (2,289 kg)
Components
- Compressor: Axial, single stage fan, four stage LP compressor, six stage HP compressor
- Combustors: Annular
- Turbine: Axial, single stage HP turbine, three stage LP turbine
Performance
- Maximum thrust: 22,100–23,800 lbf (98–106 kN)
- Overall pressure ratio: 26.1 - 28.2:1
- Bypass ratio: 4.8 - 5.0:1
- Thrust-to-weight ratio: 4.7
See also
Related development
Comparable engines
- CFM International CFM56
- General Electric CF34
- IAE V2500
- PowerJet SaM146
- Progress D-436
- Rolls-Royce BR700
Related lists
