Pratt & Whitney Canada PW500
The Pratt & Whitney Canada PW500 is a family of twin-shaft turbofan engines in the 13.3 to 20 kN thrust range that have been specially developed for business aircraft.
construction
It contains a new core engine compared to the PW300 . The PW530 range contains a single-stage fan that is driven by a two-stage uncooled turbine with integral bladed rotor technology (blisk). In the high pressure system there is a two-stage axial compressor and a single-stage centrifugal compressor which is driven by a single-stage turbine and an annular combustion chamber . Although similar in configuration, the PW535 series has an additional T-stage attached to the low pressure shaft behind the fan to increase the overall pressure ratio and core throughput.
The more powerful PW545 series has (similar to the PW535) an additional BR booster stage to drive the larger fan (blisk) and a three-stage turbine. Compared to the PW300, this reduces fuel consumption by 10 to 15%.
The first test run of a PW500 took place on October 29, 1993, the first flight took place in late 1993 on a Boeing 720B . The engine was approved by the FAA on April 17, 1996. The EASA approval then took place on April 15, 1997.
The types PW535B, PW535E and PW545C are equipped with a FADEC system. In the Pratt and Whitney models, however, it is not called FADEC, but EEC (Electronic Engine Control).
Technical specifications
| Type | Thrust (kN) | By- pass ratio at start |
Total pressure ratio |
Fan diameter (m) |
Length (m) | Dry matter (kg) |
Admission | used at |
|---|---|---|---|---|---|---|---|---|
| PW530A | 12.84 | 3.7: 1 | 13.3: 1 | 0.58 | 1.532 | 279.6 | 1997 | Cessna Citation Bravo |
| PW535A | 15.12 | 1.646 | 317 | 2000 | Cessna Citation Ultra Encore | |||
| PW535B | 15.12 | 1.646 | 318.4 | 2007 | Cessna Citation Encore + | |||
| PW535E | 14.95 | 1.697 | 317 | 2010 | Embraer Phenom 300 | |||
| PW545A | 17.58 | 4.12: 1 | 11.7: 1 | 0.693 | 1.914 | 376.5 | 1998 | Cessna Citation Excel |
| PW545B | 18.32 | 4.1: 1 | 12.5: 1 | 0.693 | 1.914 | 376.5 | 2004 | Cessna Citation XLS |
| PW545C | 18.32 | 1.914 | 376.5 | 2009 | Cessna Citation XLS + |