Rolls-Royce BR700
Under the name of BR700 is a series of turbofan engines, which are built by Rolls- Royce Germany. The BR- engines are two-shaft engines of medium thrust class and is intended for business travel and smaller airliners. They are characterized by their low noise and pollutant emissions, as well as low power consumption.
History
The companies BMW and Rolls- Royce formed a joint venture, the BMW Rolls- Royce Aero Engines GmbH, with headquarters in Oberursel (Hessen) and later Dahlewitz (Brandenburg) in 1991. The company's goal was the development of small and medium-sized engines for corporate jets and regional aircraft segment. Under the leadership of Günter Kappler began in the same year in other jurisdictions, the development work on the engine core. In 1993 was the first run of the core engine in the UK, a year later the first run of the first type, the BR710, in Dahle joke.
In 1999, "BMW Rolls- Royce " was restructured and has since been trading as a " Rolls- Royce Germany ". The 1000th engine was delivered in 2003. The engines of type BR700 manufactured by Rolls- Royce Germany at the plant in Oberursel and Dahle joke. In the workshops of the former Klöckner- Humboldt -Deutz aeronautical engineering in Oberursel components and parts production takes place, built in the early 90s drive in Dahlewitz done the development, final assembly and test runs of the finished engines. In addition, there are further components from the UK and France as well as other aviation suppliers.
BR710
The execution BR710 is designed for business aircraft with long range and comes in Gulfstream V, Bombardier Global Express / Global 5000 Gulfstream G500 and / G550 as well as in the British Aerospace Nimrod MRA4 used. As technological peculiarity of the bypass duct of carbon fiber composite material is performed. The engine received his license in 1996 and early 2011 the 2000th copy was made .
BR715
The BR715 is designed for about 100 -seat aircraft and is used in the Boeing 717-200 and some versions of the Tupolev Tu- 334 for use. With the end of production of the Boeing 717 in May 2006, only sporadically BR715 engines are made . There are versions of the BR715 -C1 -30, BR715 -B1 -30 and BR715 -A1 -30 with 95.33 kN, 89.68 kN and 83.23 kN thrust. The two-stage low-pressure compressor and the bypass duct are made of titanium.
BR725
By BR725 BR700 the series is extended. The engine completed on 28 April 2008 its successful first run on trial and received in July 2009, its type certification by EASA and the FAA in early 2010. Through the acquisition of improvements from the Trent engine series for the fan, it is expected to reach 5% more thrust, consume 4% less fuel, emit less pollutants ( 21% less nitrogen oxides, 72 % less fumes ) and his 4 dB quieter than a BR710. In addition, the maintenance interval of 3000 was extended to 10,000 hours. To achieve this, a fan is used with 24 curved titanium blades great depth; the Fanauslassleitschaufeln are made of composite material. In addition, the second to sixth stage of the high -pressure compressor are designed in blisks. The digital engine control was taken over by the Trent 1000.
Until now (2009 ) the BR725 is provided as the sole drive for the new Gulfstream G650 business jet.