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Making the Right Choices

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Making the Right Choices Summer/Fall 2008 Making the right choices MTU Aero Engines Holding AG Dachauer Straße 665 80995 Munich • Germany Technology + Science Products + Services Interview + Report Tel. +49 89 1489-0 Fax +49 89 1489-5500 www.mtu.de Optimized bestseller Thrust for Saudi “Eurofighter – the German Air Arabia Force’s system of the future” Contents Editorial Cover Story Dear Readers: Making the right choices 4 - 7 The German International Aerospace Exhibi- the A320 family has for MTU, you can imag- tion, today’s Berlin ILA, was first staged 99 ine the significance the new engine will have, Technology + Science years ago. That puts it on the threshold of a being supposed to find takers in both Airbus new century. Aviation, too, is standing on the and Boeing. Optimized bestseller 8 - 11 Making the right choices threshold of a new era: In view of impending Mitsubishi Heavy Industries (MHI) has selected it as the sole engine choice for the climate change, aircraft need to be quieter, The geared turbofan concept carries great The fine art of patching 12 - 13 Mitsubishi Regional Jet (MRJ), and also Bombardier will equip its CSeries with it: fuel-thriftier and cleaner, and their engines significance also technologically: our Claire Pratt & Whitney’s geared turbofan (GTF™) is gaining momentum and is obviously along with them. For years we engine makers (Clean Air Engine) technology program re- MTU Global here to stay. have been working on novel green technolo- volves around it. In three steps, we hope by Page 4 gies and now have found a suitable solution 2035 to reduce CO emissions by 30 percent A new brand is born 14 - 15 2 in the geared turbofan™ engine. Its introduc- and halve the noise. Importantly, none of the Optimized bestseller tion will mark a milestone in the history of technologies required for the purpose still Customers + Partners aviation and readily compare with the advent need inventing; they have all been tried and A new chapter is being opened in the of the turbofan some 40 years ago. tested or have been validated for feasibility. Desert boom town 16 - 19 V2500’s book of achievements: The geared turbofan combines latest tech- SelectOne™ is the optimized version of Pratt & Whitney and MTU have joined forces nologies: a gearbox, a highly efficient high- A veritable power pack 20 - 21 the best-selling engine built by Inter- to develop the technological base for the pressure compressor, and a high-speed low- national Aero Engines (IAE). geared turbofan in a plurality of research pro- pressure turbine as a key component. Even Products + Services Page 8 grams. This amount of groundwork is gradu- the components envisioned to optimize it sub- ally paying dividends: the geared turbofan sequently—the counterrotating fan and the Milestones 22 - 23 has passed its ground tests with flying colors, heat exchanger—have already been tested and flight testing will be next. These initial en- and have given outstanding results. Thrust for Saudi Arabia 24 - 27 Thrust for Saudi Arabia couraging results have prompted Mitsubishi The Eurofighter Typhoon has scored its and Bombardier to select the geared turbofan All this makes it very clear that for MTU, Interview + Report second export deal winning a contract as the sole engine choice for their next gen- technology and cost leadership remain key from Saudi Arabia. Worth billions, the eration of regional aircraft to fly from 2013. to maintaining competitiveness and high- “Eurofighter Typhoon – the German 28 - 29 contract is hoped to have a knock-on We expect the engine demand to run around skilled job security in Germany long-term. Air Force’s system of the future” effect triggering further sales in the 4,500 units. global market. Sincerely yours Pilotless aircraft 30 - 31 Page 24 If the geared turbofan proves its worth in daily operations, it will be a likely engine can- Anecdote “Eurofighter – the German Air Force’s system of the future” didate for Boeing 737 and Airbus A320 suc- cessor aircraft. When they enter service in Perfectionists in the sky 32 - 35 Interview with Lieutenant General Klaus-Peter Stieglitz: The Chief of Staff of the the latter half of the next decade, the new German Air Force is a pilot himself and regularly flies Europe’s most advanced and short- and medium-haul airplanes are ex- capable fighter aircraft. pected to provide appreciable fuel savings. News 36 - 39 Page 28 Their market volume will run far above that of Masthead 39 regional aircraft. For MTU, they constitute Egon Behle the most significant potential geared turbo- Chief Executive Officer fan segment by far. Considering the signifi- cance the V2500 with its sole application in 2 3 Making the right choices By Patrick Hoeveler Mitsubishi Heavy Industries (MHI) has selected it as the sole engine choice for the Mitsubishi Regional Jet (MRJ), and also Bombardier will equip its CSeries with it: Pratt & Whitney’s geared turbofan™ (GTF), is gaining momentum and is obviously here to stay. That marks the first step on the road to creating a new product family. MTU Aero Engines is plan- ning to take an approximate 15-percent stake in either of the two GTF versions. The German engine maker is also betting on development at MTU, explains: “The com- a third engine, expecting to take a roughly mon core is scaled and adapted also in 15-percent stake in the PW810 at the lower terms of the materials used. In this ap- end of the thrust range. It is being built by proach, the MRJ engine constitutes the Pratt & Whitney Canada and targeted at the basic version of the geared turbofan.” Taken new Cessna Citation Columbus. While this across the full life of the programs, the engine comes without a gearbox, it never- engine trio is worth a potential 12 billion theless joins the two geared turbofan euros in sales for MTU. engines in an extended product family. Dr. Christian Winkler, who heads business 4 Cover Story 5 components, hoping to bag a stake in the for instance, also on the MRJ and ciency,” Winkler emphasizes. The demon- compressor, apart from the high-speed low- Bombardier’s CSeries engine.” strator features a gearbox and a new low- pressure turbine. For MTU, the bargaining pressure system including MTU’s high-speed position looks compelling, not least on ac- The aircraft of the Canadian CSeries are con- low-pressure turbine. Compared with the count of the Germans’ low-pressure turbine ceived to seat 110 and 130 passengers, and standard PW6000, fuel consumption is much expertise. That turbine is a key component of enter revenue service in 2013, like the MRJ. superior, albeit not yet comparable with later the geared turbofan. Says Winkler: “On the MTU estimates its market volume at roughly product applications that will come with a high-pressure compressor, we’re targeting 3,000 units in the approximately 102-kilo- new core. Flight tests planned for mid-year the stake we already had in the experimental newton thrust range. The decisions made by are expected to demonstrate that capability compressor. That would be the first four the regional aircraft makers may point the also when airborne. But even idling on the stages, which is about half the compressor.” way for the industry in general. The MTU test stand, the engine has impressed Winkler manager is confident that “if the geared tur- and his colleagues. “It’s so quiet you can keep Developed in partnership with Pratt & bofan actually prevails and meets expecta- up a conversation standing right next to it.” Whitney, this eight-stage high-pressure com- tions in this domain, that is sure to have a pressor has its first test phase behind it. “In ripple effect on the next-generation single- the process, it attained its efficiency and sta- aisle aircraft.” For additional information, contact bility goals throughout,” Winkler says. “It has Dr. Christian Winkler a high 17:1 pressure ratio and its size is tar- First results coming in from a geared turbo- +49 89 1489-8663 geted at the potential successor models of fan demonstrator based on the PW6000 For interesting multimedia services the Airbus A320 and Boeing 737. In a down- speak for themselves. “We’ve met specifica- associated with this article, go to: scaled version, the compressor will be used, tions for specific fuel consumption and effi- www.mtu.de/108GTF_E The next generation of regional jets – the Mitsubishi Regional Jet (MRJ). The MRJ is a 70-to-90-passenger commercial The concept also enables bigger fan diame- At this time, negotiations are underway be- transport to enter revenue service in 2013. ters to be selected, which in turn makes for tween MTU and Pratt & Whitney regarding The MRJ70 will be rated at 67 kilonewtons, larger bypass ratios and hence lower fuel the size of MTU’s stakes. “We’re seeking the larger MRJ90 at a takeoff thrust of 76 consumption. “We try to make the fan as module responsibility in development and kilonewtons. Its market volume is estimated large as possible. The slower it turns the more manufacturing,” Winkler confirms. The at 1,500 units. Official program launch is efficient and quieter it gets,” explains Saia. Munich people have set their sights on two expected to occur this year. The Japanese opted for the geared turbofan on account of its 15 percent lower operating costs. “A major part of that is due to its lower fuel con- sumption,” Winkler says. Compared to today’s best-selling engines in this thrust class the new design offers a reduction of maintenance costs of 40 per- cent according to Robert Saia, Vice President Next Generation Product Family at Pratt & Whitney.
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