Rolls-Royce RB211

Rolls-Royce RB211

The Rolls-Royce RB211 series includes jet engines of the medium thrust class from the British manufacturer Rolls-Royce . They are modern turbofan engines or twin- flow turbine air jet engines (ZTL) with a high bypass ratio . The larger engines of the Rolls-Royce-Trent series, which are used on the Airbus A380 , among other things , were developed from the RB211 .

history

At the end of the 1960s, Rolls-Royce made Lockheed an offer for a modern turbofan engine for its L-1011 TriStar wide-body aircraft, which is currently in development . In addition to high thrust, the RB211 model should offer lower kerosene consumption and less noise than the competition models from General Electric and Pratt & Whitney . In contrast to its two-shaft competitors, it was designed with three shafts, which means that it contained fewer parts and was lighter and more compact. Rolls-Royce built on the RB.203 Trent , the first three-shaft engine ever, which had carried out its first test bench tests at the end of 1967, but did not go into production. The delivery of the new RB211, scheduled for 1971, was delayed due to technical problems. Financial difficulties finally led to the bankruptcy of Rolls-Royce in spring 1971 and the subsequent nationalization of the company. After a thorough revision, the new RB211-22C engine was finally approved as airworthy in the spring of 1972 .

The variant RB211-524 is a further development with higher thrust, which was able to secure a considerable share of the engine equipment, especially with the Boeing 747 . It has a fan diameter of 2.19 m, a length of 3.17 m, a dry matter of 4277 kg and a bypass ratio of 4.1: 1.

The RB211-535 variant is a specially developed version for the Boeing 757 and flew for the first time in 1983. Around 70 percent of all Boeing 757s built were equipped with this variant. With more than 40,000 flight hours in over nine years, an engine of the RB211-535E4 version holds the record for the longest service life on an aircraft without overhaul.

Executions

• RB211-22C
• RB211-22B
  • Thrust: 42,000 lb (187 kN)
  • Commissioning: 1973
  • Aircraft type: Lockheed L-1011-1 / -100
• RB211-524B & B2
  • Thrust: 50,000 lb (222 kN)
  • Commissioning: 1977
  • Aircraft type: Boeing 747-200 / 747SP
• RB211-524B4
  • Thrust: 50,000 lb (222 kN)
  • Commissioning: 1981
  • Aircraft type: Lockheed L-1011-250 / -500
• RB211-524C2
• RB211-524D4
  • Thrust: 53,000 lb (236 kN)
  • Commissioning: 1981
  • Aircraft type: Boeing 747-200 / 747-300 / 747SP
• RB211-524G
  • Thrust: 58,000 lb (258 kN)
  • Commissioning: 1989
  • Aircraft type: Boeing 747-400
• RB211-524H
  • Thrust: 60,600 lb (270 kN)
  • Commissioning: 1990
  • Aircraft type: Boeing 747-400 / 767-300
• RB211-524G / HT
  • Thrust: 269.6 kN
  • Commissioning: 1997
  • Aircraft type: Boeing 747-400
• RB211-535C
  • Thrust: 37,000 lb (166 kN)
  • Commissioning: 1983
  • Aircraft type: Boeing 757-200
• RB211-535E4
  • Thrust: 40,100 lb (178 kN)
  • Commissioning: 1984
  • Aircraft type: Boeing 757-200 / -300, Tupolev Tu-204
• RB211-535E4B
  • Thrust: 43,100 lb (192 kN)
  • Commissioning: 1989
  • Aircraft type: Boeing 757-200 / -300, Tupolev Tu-204

See also

• List of aircraft engines

Web links

Commons : Rolls-Royce RB.211  - Collection of Pictures, Videos and Audio Files

• Manufacturer page with information
• EASA-TCDS-E.060 (PDF; 86 kB) - Type certification of the "RB211 Trent 500" series
• EASA-TCDS-E.042 (PDF; 40 kB) - Type certification of the "RB211 Trent 700" series
• Reliability Analysis of the RB-211 Jet Engines Operated by Icelandair.