|Rear view of a BR710|
|Major applications||Bombardier Global Express
The Rolls-Royce BR700 family of engines powering regional jets and corporate jets. It was developed by BMW and Rolls-Royce plc through the joint venture BMW Rolls-Royce AeroEngines GmbH, established in 1990. The engine first ran in September 1994 (a BR710) and is manufactured in Dahlewitz, Germany. Rolls-Royce took full control of the company in 2000, which is now known as Rolls-Royce Deutschland.
Design and development
The BR710 comprises a 48-inch-diameter single-stage fan, driven by a two-stage LP turbine, supercharging a ten-stage HP compressor (scaled from the V2500 unit) and driven by a two-stage, air-cooled, HP turbine.
The BR715 is another twin-shaft turbofan; this engine was first run in April 1997 and entered service in mid-1999. This version powers the Boeing 717.
A new LP spool, comprising a 58-inch-diameter single-stage fan, with two-stage LP compressor driven by a three-stage LP turbine, is incorporated into the BR715. The HP spool is similar to that of the BR710.
The IP compressor booster stages supercharge the core, increasing core power and thereby net thrust. However, a larger fan is required, to keep the specific thrust low enough to satisfy jet noise considerations.
The BR725 prototype underwent component bench and its first full engine run in spring 2008 and European certification was achieved in June 2009. The first Gulfstream G650, with BR725 engines, was delivered in December 2011.
Advance 2 development effort inserts new, advanced technology into existing 15,000-lb class BR710 and larger BR725 and a larger member will be added with a 52-inch fan. BR710 and BR715 main developments, the next generation of 10,0000 to 20,000 lbf engines to be introduced in the 2020s will have an Advance 3 core, improved engine health management, newer materials and cooling, a titanium “blisked” fan and an overall pressure ratio of 50:1 for a 10% thrust specific fuel consumption reduction, 50% NOx margin improvement, 99.995% reliability and a 20% better thrust-to-weight ratio.
- Variant with a 65.6kN takeoff rating and a maximum diameter of 1820mm.
- Variant with a 65.6 kN (14,700 lbf) takeoff rating and a maximum diameter of 1820mm.
- Variant with a 69 kN (16,000 lbf) takeoff rating for the BAE Systems Nimrod MRA4.
- Variant with a 68.4kN takeoff rating and a maximum diameter of 1785mm.
- Variant with an 83.23kN (18,500 lbf) takeoff rating for Boeing 717-200 basic gross weight variants.
- Variant with an 89.68kN (20,000 lbf) takeoff rating.
- Variant with a 95.33kN (21,000) takeoff rating for Boeing 717-200 high gross weight variants.
- Variant with a 71.6 kN (16,100 lbf) takeoff rating.
The BR715 thrust ratings can be adjusted by changing a plug in the FADEC controller, meaning no engine change is required. The A1-30 can become a C1-30 with a simple plug and software change.
- Bombardier Global Express
- Boeing 717
- Gulfstream V
- Gulfstream G650
- BAE Systems Nimrod MRA4
- Rekkof/ Fokker XF70/XF100
- Tupolev Tu-334
|BR700 family specifications|
|Thrust (lb)||14,750–15,500 lbf (65.6–68.9 kN)||18,500–22,000 lbf (82.3–97.9 kN)||15,000–17,000 lbf (66.7–75.6 kN)|
|Dry Weight (lb)||4,640 lb (2,100 kg)||6,155 lb (2,792 kg)||4,912 lb (2,228 kg) appx|
|Overall Length (in)||134 in (3.4 m)||147 in (3.7 m)||202 in (5.1 m) nacelle|
|Fan Diameter (in)||48 in (1.2 m)||58 in (1.5 m)||50 in (1.3 m)|
- Comparable engines
- Related lists
- Gulfstream G650 - Rolls-Royce power
- "Rolls-Royce presents BR725 engine to power new Gulfstream G650", Rolls-Royce, 13 March 2008.
- Rolls-Royce completes successful first run of BR725 engine
- Rolls-Royce wins certification for BR725 engine
- Gulfstream completes first G650 delivery, gains production authority
- "Rolls-Royce Bullish On Prospects For Bizjet Sector". Aviation International News. April 11, 2017.
- "Type Certificate Data Sheet E.018 - BR700-710 series engines" (PDF). European Aviation Safety Agency. 23 June 2009. Retrieved 3 January 2010.
- "BR710". Rolls-Royce Germany. Retrieved 3 January 2010.
- "Type Certificate Data Sheet E.023 - BR700-715 series engines" (PDF). European Aviation Safety Agency. 27 July 2009. Retrieved 3 January 2010.
|Wikimedia Commons has media related to Rolls-Royce BR700 family.|
- BR700: Technical data
- BR710: Power for ultra-long range business jets and special mission aircraft
- BR715: Power for the Boeing 717-200
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