Contact: Ronald T. Rand Tel: 860-565-9600 Web site: www.pw.utc.com
Pratt & Whitney's PW4000 112-inch-fan
The 112-inch-fan PW4000 is an ultra-high-thrust model covering the 74,000 to 98,000pound-thrust class to meet the requirements for the Boeing 777 –200/-200ER/-300 twinjets. It was the launch engine for the 777, entering service in 1995. The PW4084, with 84,000 pounds of thrust, was the first engine to enter service already approved for 180-minute ETOPS and has subsequently been approved for 207 minutes, the maximum allowable, along with all the other PW4000-112 inch models. A higherthrust model, the PW4090, with 90,000 pounds of thrust, powers an increased-grossweight version of the 777. And the 98,000-pound-thrust PW4098 currently powers the 777 up to 660,000 lbs take-off weight. The 112-inch PW4000 also is our largest commercial engine, its diameter nearly as wide as the fuselage of a Boeing 737. Using hollow titanium, shroudless fan blades, the PW4000 provides high efficiency and low noise along with superb resistance to foreign object damage. In addition to being the market-experience leader, the PW4000-112 on the 777 has the best-in-class reliability statistics, attributable to its mature, derivative, high technology design and validation methodology. Engine Characteristics Fan tip diameter: 112 inches Length, flange to flange: 191.7 inches Takeoff thrust: 74,000 - 98,000 pounds of thrust Flat rated temperature: 86 degrees F Bypass ratio: 5.8-to-1 to 6.4-to-1 Overall pressure ratio: 34.2 - 42.8 Fan pressure ratio: 1.70 - 1.80 Program Milestones October 1990 - Program launch May 1993 - 100,000 pounds thrust achieved (industry first) November 1993 - First flight
飞行翻译公司 www.aviation.cn 本文链接地址：commercial_2003_pw4000_112.pdf
Pratt & Whitney's PW4000 112-inch-fan
The 112-inch-fan PW4000 is an ultra-high-thrust model covering the 74,000 to 98,000pound-thrust class to meet the requirements for the Boeing 777 –200/-200ER/-300 twinjets. It was the launch engine for the 777, entering service in 1995. The PW4084, with 84,000 pounds of thrust, was the first engine to enter service already approved for 180-minute ETOPS and has subsequently been approved for 207 minutes, the maximum allowable, along with all the other PW4000-112 inch models. A higherthrust model, the PW4090, with 90,000 pounds of thrust, powers an increased-grossweight version of the 777. And the 98,000-pound-thrust PW4098 currently powers the 777 up to 660,000 lbs take-off weight. The 112-inch PW4000 also is our largest commercial engine, its diameter nearly as wide as the fuselage of a Boeing 737. Using hollow titanium, shroudless fan blades, the PW4000 provides high efficiency and low noise along with superb resistance to foreign object damage. In addition to being the market-experience leader, the PW4000-112 on the 777 has the best-in-class reliability statistics, attributable to its mature, derivative, high technology design and validation methodology. Engine Characteristics Fan tip diameter: 112 inches Length, flange to flange: 191.7 inches Takeoff thrust: 74,000 - 98,000 pounds of thrust Flat rated temperature: 86 degrees F Bypass ratio: 5.8-to-1 to 6.4-to-1 Overall pressure ratio: 34.2 - 42.8 Fan pressure ratio: 1.70 - 1.80 Program Milestones October 1990 - Program launch May 1993 - 100,000 pounds thrust achieved (industry first) November 1993 - First flight
飞行翻译公司 www.aviation.cn 本文链接地址：commercial_2003_pw4000_112.pdf
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