GP7200

概要

The Engine Alliance GP7200 is one of two powerplant options for the Airbus A380, the world's largest commercial passenger aircraft. Produced by Engine Alliance — a 50/50 joint venture between GE Aerospace and Pratt & Whitney — the GP7200 represents a synthesis of the most advanced technology from both companies, combining core architecture derived from the GE90 with the low-pressure system heritage of the PW4000.

With a fan diameter of 2.96 meters (nearly 9.7 feet) and thrust exceeding 363 kN (81,500 lbf), the GP7200 is one of the largest and most powerful commercial turbofan engines ever produced. Four GP7200 engines power each A380, providing the thrust needed to lift a maximum takeoff weight of 575 tonnes.

技術仕様

派生型

The GP7200 family covers thrust ratings from approximately 311 kN to 363 kN:

• GP7270: Baseline variant producing 311 kN (70,000 lbf), used on lower-gross-weight A380 operations.
• GP7277: Intermediate variant at approximately 340 kN (76,500 lbf).
• GP7287: High-thrust variant producing 363 kN (81,500 lbf) for maximum-weight A380-800 operations over very long ranges such as Dallas–Sydney or London–Sydney non-stop sectors.

搭載機

The GP7200 is exclusive to a single aircraft type:

• Airbus A380-800 — The GP7200 competes with the Rolls-Royce Trent 900 as the sole engine options for the A380. Emirates, the largest A380 operator with over 120 aircraft, standardized on the GP7200 for a significant portion of its fleet, choosing it for its fuel efficiency and GE/PW technical support network. Air France, Korean Air, and Etihad Airways also operate GP7200-powered A380s.

開発の歴史

Engine Alliance was established in 1996 specifically to compete for the A380 engine contract, a program that promised to be one of the largest commercial engine orders in history. By combining GE's high-pressure core technology from the GE90 with Pratt & Whitney's low-pressure system expertise from the PW4000 program, the alliance offered Airbus and airlines an engine that leveraged billions of dollars of prior development investment.

The GP7200's first ground test run occurred in February 2004, and Airbus conducted flight testing on a modified A340 testbed aircraft before the A380's maiden flight in April 2005. The GP7200-powered A380 entered revenue service with Emirates in August 2008, four years after the Trent 900 powered A380 prototype flew.

The A380 program faced commercial challenges and Airbus announced in 2019 that it would cease production after completing existing orders. With the final A380 delivered in 2021, the GP7200 production line closed, though Engine Alliance continues to provide MRO support to the substantial in-service fleet. The roughly 200 A380s in active service will require GP7200 support through the 2040s, making the aftermarket a significant ongoing business for both GE and Pratt & Whitney.