Engineering:Pratt & Whitney Canada PW500
| PW500 | |
|---|---|
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| |
| Cutaway showing the configuration : 1 fan, 2A+1C HP compressor, 1 HP and 2 LP turbine | |
| Type | Turbofan |
| National origin | Canada |
| Manufacturer | Pratt & Whitney Canada |
| First run | November 1993[1] |
| Major applications | Cessna Citation II Bravo Cessna Citation V Encore Cessna 560XL Embraer Phenom 300 MQ-20 Avenger |
| Number built | 4,600 (May 2023)[2] |
The Pratt & Whitney Canada PW500 is a series of medium thrust turbofan engines designed specifically for business jet applications.
Design
The PW530 has a single stage fan, driven by a 2-stage LP turbine, supercharging a 2A/1CF axial-centrifugal HP compressor, driven by a single stage HP turbine. Although similar in configuration, the PW535 has a booster stage, mounted on the LP shaft behind the fan, to increase overall pressure ratio and core flow. Similar to the PW535, the PW545 has an additional LP turbine stage to drive a larger diameter fan.
Development
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The PW530A, rated at 2,887 lbf (12.84 kN), entered service in February 1997 on the Cessna Citation II Bravo, and the PW545 in July 1998 on the Cessna Citation Excel. The PW535 powered the Cessna Citation V Encore in September 2000, and was selected for the Embraer Phenom 300, first delivered in December 2009.
On 31 January 2020, Embraer announced improvements to its Phenom 300, including increased speeds and upgraded engines.[3] The engines, designated PW535E1, are rated at 3,478 lbf (15.47 kN)/[4]
Unveiled at the May 2023 EBACE show, the FADEC-controlled PW545D is developed for the Cessna 560XL Ascend variant, to be rated at 4,200 lbf (19 kN) and optimized for improved fuel burn and longer time between overhauls (TBO) up to 6,000 hours.[2] By then, 4,600 PW500s had been produced and had flown 22 million hours.[2]
Applications
| Application | Variant |
|---|---|
| Cessna Citation II Bravo | PW530A |
| Cessna Citation V Encore | PW535A |
| Cessna Citation V Encore+ | PW535B |
| Embraer Phenom 300 | PW535E |
| Cessna 560XL Excel | PW545A |
| Cessna 560XL XLS | PW545B |
| General Atomics MQ-20 Avenger | PW545B |
| Cessna 560XL XLS+ | PW545C |
| Cessna 560XL Ascend | PW545D |
Specifications
| PW530 | PW535A | PW545A | PW545B | PW545C | |
|---|---|---|---|---|---|
| Thrust (lb/kN) | 2,887/12.84 | 3,400/15.12 | 3,804/16.92 | 3,952/17.58 | 4,119/18.32 |
| TSFC (lb/lbf/h)[5] | 0.44 | 0.44 | |||
| Bypass ratio | ~3.7 | 2.55 | 4.10 | 3.8 | 4.12 |
| Overall pressure ratio | ~13.3 | 13.3 | 11.7 | 12.5 | |
| Overall Length (in) | 60.0 | 63.9 | 68.6 | ||
| Fan Diameter (in) | 23.0 | 28.2 | 27.3 | ||
| Application | Citation Bravo |
Citation Encore |
Citation Excel |
Citation XLS |
Citation XLS+ |
See also
Comparable engines
Related lists
References
- ↑ "Bridging the gap". Flight Global. 24 May 1995. https://www.flightglobal.com/news/articles/bridging-the-gap-25833/.
- ↑ 2.0 2.1 2.2 Guy Norris (May 22, 2023). "Pratt Unveils Advanced PW545D Derivative For Citation Ascend". Aviation Week. https://aviationweek.com/shownews/ebace/pratt-unveils-advanced-pw545d-derivative-citation-ascend.
- ↑ "Embraer Unveils Speedier, Improved Phenom 300". Aviation Week & Space Technology. 31 January 2020. https://aviationweek.com/business-aviation/embraer-unveils-speedier-improved-phenom-300e.
- ↑ Embraer Phenom 300 (accessed 4 February 2020)
- ↑ "SmallEngines Summary". Archived from the original on 31 July 2009. https://web.archive.org/web/20090731145616/http://adg.stanford.edu/aa241/propulsion/smallfan.html. Retrieved 11 June 2009.
External links
 Cutaway diagram of PW545 |
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