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Il rivoluzionario GTF (geared TurboFan) della P&W ha completato con successo i ground test ed è pronto per i primi test in volo: sarà installato su un 747sp.

Risultati promessi: consumi -12 %; rumore -50%; emissioni -12%

Qualche articolo:

World Premier: Pratt & Whitney's GTF Trailer (FlightBlogger - Aviation News, Commentary and Analysis)

 

 

Pratt & Whitney Geared Turbofan - Wikipedia, the free encyclopedia

 

Cita

Geared Turbofan™ Engine Completes Phase II Ground Testing, Cleared for First Flight

 

BERLIN AIR SHOW 2008 – May 28, 2008 – Pratt & Whitney’s Geared Turbofan demonstrator engine has completed Phase II ground tests and has been cleared for flight testing on Pratt & Whitney’s 747SP flying test bed mid-year. Phase II, which began in April at Pratt & Whitney’s advanced test facility in West Palm Beach, Fla., focused on engine performance and ground acoustics with the Geared Turbofan engine’s flight capable nacelle system. The engine completed 120 hours of testing during Phase II and has logged a total 250 hours since ground testing began in November 2007. Pratt & Whitney is a division of United Technologies Corp. (NYSE:UTX).

The ground test program has been a complete success and the Geared Turbofan engine has met or exceeded all performance targets,” said Bob Saia, Pratt & Whitney vice president, Next Generation Product Family. “This demonstrator engine has confirmed the laboratory results of our Fan Drive Gear System demonstrating excellent efficiency and operational characteristics. The double-digit reductions in fuel burn, engine noise, environmental emissions and operating costs we’ve targeted make the Geared Turbofan engine the best solution for the next generation of commercial aircraft.”

 

The Phase II test program included the acoustic measurements of the Geared Turbofan demonstrator engine. The tests measured the ground-level noise characteristics of the engine, which is expected to be 50 percent quieter than today’s engines and 20 dB quieter than International Civil Aviation Organization (ICAO) Stage 4 noise regulations. The testing used an array of 32 individual microphones around the engine test stand and 16 sound pressure transducers inside the engine to get accurate data for noise modeling.

 

Initial data from the ground acoustic testing show the Geared Turbofan engine is right on target,” Saia said. “The ground test noise data will be compiled with flight test measurements taken later this year to validate the Geared Turbofan engine’s noise signature. The significantly lower noise of the Geared Turbofan engine is a key benefit to airlines and operators, giving them increased flexibility for landing and takeoff at airports with heavy noise regulations.”

The Geared Turbofan engine is expected to set new standards in environmental performance and operating value for the next generation of commercial aircraft. In a Geared Turbofan engine, a state-of-the-art gear system allows the engine’s fan to operate at a different speed than the low-pressure compressor and turbine, resulting in greater fuel efficiency and a slower fan speed for reduced noise. The Geared Turbofan engine builds on more than 20 years of technology development with improvements in every major module.

 

In 2007, Pratt & Whitney’s Geared Turbofan engine was selected as the exclusive power for the new Mitsubishi Regional Jet and the proposed Bombardier CSeries. The Mitsubishi Regional Jet program was officially launched on March 28, 2008, with an order from All Nippon Airways. The CSeries program is expected to launch later this year. Both aircraft are scheduled to enter service in 2013.

Pratt & Whitney has more than 17,000 aircraft engines installed with hundreds of airlines around the world. Additionally, Pratt & Whitney is a leading participant in two joint venture companies that manufacture commercial aircraft engines: International Aero Engines, which makes the V2500 for the Airbus A320 family of aircraft, and the Engine Alliance, whose GP7200 engine is FAR 33 certified for the new Airbus A380.

 

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines, space propulsion systems and industrial gas turbines. United Technologies, based in Hartford, Conn., is a diversified company providing high technology products and services to the global aerospace and building industries.

 

This release includes "forward looking statements" concerning future business opportunities and other matters involving this engine that are subject to risks and uncertainties. Important factors that could cause actual results to differ materially from those anticipated or implied in forward looking statements include changes in the health of the global economy and the strength of end market demand in the aerospace industry; as well as company specific items including the ability to achieve cost reductions at planned levels; challenges in the design, development, production and support of advanced technologies including this engine, and new products including the engine discussed in this press release; and delays and disruption in delivery of materials and services from suppliers. For information identifying other important economic, political, regulatory, legal, technological, competitive and other uncertainties, see UTC's SEC filings as submitted from time to time, including but not limited to, the information included in UTC's 10-K and 10-Q Reports under the headings "Business," "Risk Factors," "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Cautionary Note Concerning Factors that May Affect Future Results," as well as the information included in UTC's Current Reports on Form 8-K.

 

 

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"All truth passes through three stages. First, it is ridiculed, second it is violently opposed, and third, it is accepted as self-evident." (Arthur Schopenhauer)

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  • 4 mesi fa...

Primi test in volo del nuovo motore:

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Notare come è più grande degli altri 3. Al termine di questi test, se i risultati saranno in linea con le attese, Airbus potrebbe decidere se equipaggiare il suo A320 family col GTF. Già ufficialmente annunciato che una volta presa la decisione, serviranno 2 anni prima di metterlo in vendita.

Modificato da Dodicicilindri

"All truth passes through three stages. First, it is ridiculed, second it is violently opposed, and third, it is accepted as self-evident." (Arthur Schopenhauer)

65540b21bc9c02fae8a50143b3dfab8c.jpg

Automobili

Volkswagen Scirocco 1.4 TSI 160cv Viper Green (venduta)

BMW M4 DKG Competition Package 450cv Sapphire Black

Link al commento
Condividi su altri Social

  • J-Gian ha modificato il titolo in Airbus A320neo ed A320
  • 5 mesi fa...

É un ritorno al passato: voli transatlantici imbarcati (quasi) come ai tempi di 707, DC-8 & co.

Ma quant'acqua è passata nel frattempo sotto ai ponti...

Modificato da Sandro

Statisticamente, il 98% dei ragazzi nel mondo ha provato a fumare qualsiasi cosa. Se sei fra il 2%, copia e incolla questa frase nella tua firma

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