Rolls-Royce RR300

The Rolls-Royce RR300 is a turbine engine developed for the light helicopter market. Rated at 300 shp (224 kW) at take-off power, the RR300 is a scaled-down version of one of the latest versions of the Rolls-Royce Model 250. [cite web |url=http://www.indystar.com/apps/pbcs.dll/article?AID=/20070308/BUSINESS/703080398/-1/ZONES04 |title= Small engines buoy Rolls-Royce |publisher=Indianapolis Star |archiveurl=http://web.archive.org/web/20070313020903/http://www.indystar.com/apps/pbcs.dll/article?AID=/20070308/BUSINESS/703080398/-1/ZONES04 |archivedate=2007-03-13]

The original Model 250 was rated at a similar power level to that of the RR300 but, over the last forty years, subsequent sub-models have become more efficient and produce substantially more power. For instance, the Model 250-C40, with an overall pressure ratio of 9.2:1 at an airflow 6.1lb/s, develops 715 shp. Scaling this engine to 300shp yielded a very compact engine with scale effects having only a modest impact upon specific fuel consumption.Fact|date=July 2008

The new five-seat Robinson R66 light helicopter will feature the Rolls-Royce RR300 as a turboshaft engine. Rolls-Royce have also signed a Memorandum of Understanding with Schweizer Aircraft to discuss future applications of the new RR300 engine family. Since Schweizer produce both helicopter and fixed wing aircraft, Rolls-Royce probably intend to produce both turboshaft and turboprop versions of the RR300, as with the Model 250.Fact|date=June 2007 FAA type certification for the RR300 was achieved by March 2008, with production to follow. [ [http://www.rolls-royce.com/media/showPR.jsp?PR_ID=40697] Accessed 30 July 2008]

ee also

* Rolls-Royce Model 250

References

External links

* [http://www.rolls-royce.com/civil_aerospace/products/helicopters/rr300/default.jsp Rolls-Royce RR300 Official page]
* [http://www.rolls-royce.com/media/showPR.jsp?PR_ID=40698 Rolls-Royce RR500]