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An Engine Trio with a Common Core Winter 2008/ Spring 2009 An engine trio with a common core MTU Aero Engines Holding AG Dachauer Straße 665 80995 Munich • Germany Technology + Science Customers + Partners Reports Tel. +49 89 1489-0 Fax +49 89 1489-5500 www.mtu.de Engines that have got GE38 breakthrough Mission accomplished what it takes Contents Editorial Cover Story Dear Readers: An engine trio with a common core 4 - 7 The global climate debate essentially re- Ground and flight testing leave little doubt volves around two issues: fuel consumption we’re on the right track. The test output Technology + Science and carbon dioxide emission. The latter is makes the targets—15 to 20 percent less fuel directly related to the fuel burn, and we are burn and carbon dioxide emission, and half Engines that have got what it takes 8 - 9 challenged to reduce both. In view especially the perceived noise—appear realistic enough. Reduce emissions, enhance 10 - 11 An engine trio with a common core of current oil price trends, public opinion and The data won over launch customers competitiveness airlines are urging for fuel-thriftier and hence Mitsubishi and Bombardier. Their new Pratt & Whitney PurePower™ engines deliver step-change improvements: pure cleaner engines. There’s still another type of regional jets will fly in 2013, when the geared power, low fuel burn and less noise—not sometime in 2016 or 2020, but now. emission, though, that must not be neglected turbofan engine will be able to demonstrate MTU Global Page 4 in the environmental protection effort, and its excellence also in revenue service. Airbus, Always on call 12 - 13 that is aircraft noise. It’s a quality-of-life nui- too, is impressed with it and currently con- Engines that have got what sance and, too, needs cutting drastically. ducting flight tests of the PW1000G on the wing of one of its A340s. Customers + Partners it takes The Advisory Council for Aeronautics Re- GE38 breakthrough 14 - 17 MTU Aero Engines has taken a stake in search in Europe (ACARE) isn’t the only voice MTU and Pratt & Whitney are united in the Pratt & Whitney Canada’s upcoming demanding aircraft noise to be cut in half by view that the geared turbofan is the only Forever young 18 - 21 PW810 program. The engine is targeted 2020. For local residents and airport opera- engine concept that promises appreciable at the top end of the business jet mar- tors, for instance, aircraft noise is the clincher fuel burn and carbon dioxide reductions and Products + Services ket and will power the Cessna Citation in airport expansion plans. It is a perennial at the same time meets the widespread re- Columbus and other aircraft. Page 8 theme also in nighttime curfew discussions. quirement for low engine noise levels. It is Engineering art in the best of all 22 - 25 Concepts for future aircraft engines, there- going to win the battle and prove us right. possible test environments GE38 breakthrough fore, must necessarily focus on lower fuel burn and associated carbon dioxide emission Sincerely yours, Reports MTU Aero Engines has taken a stake in in conjunction with massive noise reductions. the GE38. The helicopter engine con- Bird versus aircraft 26 - 27 tract ushers in a new era for the com- At MTU and our partner Pratt & Whitney, Mission accomplished 28 - 31 pany: for the first time, it acts as a de- we’re betting on an engine concept that in velopment participant in a U.S. military our estimation best satisfies those needs: engine program. Page 14 the geared turbofan engine. Development of Anecdote this engine is in full swing. Its priceless 32 - 35 The Red Bull flies Alpha Jet advantage is that the enabling technologies Egon Behle are already on hand, so that a full-fledged Chief Executive Officer Mission accomplished demonstrator engine was built and put to In Brief 36 - 39 flight testing at very short notice. Each year, the U.S. Air Force is conducting its aerial warfare exercises, some of Masthead 39 the biggest the world has ever seen. Taking part in them for the first time in June 2008 were modified Eurofighter Typhoons of the United Kingdom’s Royal Air Force (RAF). Page 28 2 3 Pure power, low fuel burn and less noise is fan configurations, as indicated by the letter which is high-speed for the MRJ and CSeries what the new engine trio from the United G adjunct. Completing the trio is the un- and conventional speed for the Citation. States intends to deliver. MTU Aero Engines geared PW810C to power the Cessna Production of first long-lead items like the holds a 15 percent stake in each of the three Citation Columbus business jet. castings for the low-pressure turbine nozzle An engine trio with engines. Front and center is the geared tur- vanes and the blanks for the integrally bladed bofan engine concept. Two members of the For the PW810 and PW1217G, MTU has al- rotors has already been initiated. The two en- new engine family are to enter service in ready inked 15-percent-workshare con- gines are scheduled to make their first run 2013; the PW1217G on the Mitsubishi Reg- tracts. Germany’s leading engine manufac- next year. ional Jet (MRJ), and the PW1524G on the turer will provide the first four stages of the a common core Bombardier CSeries. They are geared turbo- high-pressure compressor, plus the turbine, By Patrick Hoeveler It was with obvious pride that Steve Finger, Pratt & Whitney President, announced the launch of a new generation of engines at the 2008 Farnborough Airshow: “Airlines and business aircraft customers want pure engine solutions that deliver economic and environmental benefits without compromises. Pratt & Whitney PurePower™ engines employ game-changing technologies to deliver step-change improvements.” All of which is going to happen not sometime in 2016 or 2020, but now. 4 Cover Story 5 The nod for the new Bombardier business jet was given also at the Farnborough Airshow: Comparision of noise footprints at Munich Airport after Lufthansa had issued a letter of intent for a 30-aircraft buy, Bombardier announced the long-awaited launch of the CSeries and green-lighted detailed development work to begin on the engine worldwide. MTU will start parts production for the PW1524G in early 2009. “For the CSeries, we’re looking to participate on about the same scale as for the other two programs, and we expect to wrap up negoti- ations with Pratt & Whitney before the year is out,” explains Dr. Christian Winkler, who heads new business development at MTU. “With that, we’re steadfastly continuing our strategy, which focuses on the turbine and high-pressure compressor areas.” Taken over the life of the program, he is figuring on 2,800 engines worth six billion euros in revenues to MTU. The rising price of oil attracts the growing interest of airlines in the geared turbofan SEL (sound exposure level) contours of a Boeing 737-800. configuration. That’s where the promising results of flight tests on a geared turbofan demonstrator based on a PW6000 core en- gine (that is, using a PW6000 high-pressure compressor, combustor and high-pressure turbine) come in handy. The tests on the wing of a Pratt & Whitney-owned Boeing 747SP began on July 11, 2008, out of Plattsburgh, New York. By August, 12 flights had been completed and a total of 43 flight hours were logged. The test schedule included maximum power takeoffs, flights above an altitude of The CSeries—Bombardier’s new business jet family. 12 kilometers, relighting in flight, rapid load alternations and extreme flight maneuvers, as at high angles of attack. Winkler said: “During the trials, efficiency and noise targets were Shared core hit.” The 12 to 15 percent fuel burn reduction The salient feature of the new PurePower™ they fitted MTU-patented brush seals for bustor, too, are essentially similar types. eyed for production geared turbofans ap- engine family is the common core its mem- better sealing integrity and hence im- pears feasible. bers share, the core consisting of high- proved efficiency. The core engine for the CSeries uses up- pressure compressor, combustor, and high- scaled hardware. “Put in a nutshell, you The engine also seeks to reduce noise levels pressure turbine. Dr. Christian Winkler, who heads new busi- blow up the blueprints and then figure by 24 decibels. “That item has been the sub- ness development at MTU, notes: “On the whether the design is feasible from the ject of several discussions we’ve had with Noise footprint of a Boeing 737-800 powered by geared turbofan engines. The heart of the engine beats in its eight- engines for the MRJ and Citation Colum- structural mechanical aspect or needs representatives from Frankfurt and Munich stage high-pressure compressor, which bus, the compressors are essentially the tweaking a little. Development character- airports, who took a great interest in the sports several innovations: this is the first same, also in size, except that inlet and istics remain unchanged, nonetheless,” geared turbofan,” said Winkler. Pratt & Whit- focus of the flight trials Airbus started in For additional information, contact time a compressor is a 100 percent blisk outlet conditions and rotary speeds vary. assures Winkler. ney experts issued impressive projections of September in Toulouse, France. They are Dr. Christian Winkler +49 89 1489-8663 construction. Its designers used 3D aero- The compressors are designed to make the noise footprint of an Airbus A319 and made on the wing of an A340 and scheduled dynamic code and replaced conventional these variations negligible in terms of effi- In this core engine Pratt & Whitney and Boeing 737 class aircraft: when fitted with a to last 75 hours.
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