Learn more. The “Affinity” engine is optimized with proven GE technology for supersonic flight and timed to meet the Aerion AS2 launch. It is a unique blend of … The Mach 1.4-to-1.6 speed requires no variable-geometry inlet and the variable-area nozzle has a cone moving longitudinally, replacing a convergent-divergent nozzle. GE’s Affinity™ is a new class of medium bypass ratio engines that provide exceptional and balanced performance across supersonic and subsonic flights. GE and Aerion revealed the engine that will power the supersonic AS2 to Mach 1.4 when it first flies in 2023. The Affinity is a new class of medium bypass ratio engines that provide exceptional and balanced Source: GE Aviation performance across supersonic and subsonic flights. The Affinity integrates a unique blend of proven military supersonic experience, commercial reliability and the most advanced business jet engine technologies. The CFM56-5 sitting on an A320 has a cruise thrust of around 5,000lbf at 37,000ft, a bypass ratio of 5 and a fuel consumption of 0.6 lb/lbf/hr. GE Aviation has given impetus to the revival of civilian supersonic flight by revealing a new family of engines designed to fly faster than the speed of sound. The CFM56 is derived from the B-1's GE F101. The unveiling of General Electric’s Affinity engine for Aerion’s AS2 here at NBAA is the strongest signal yet that the era of supersonic business aviation is finally getting underway. “It’s a hybrid between an airline engine and a fighter engine,” Mottier said. [4] The Affinity is a new class of medium bypass ratio engines that provide exceptional and balanced Source: GE Aviation performance across supersonic and subsonic flights. Called Affinity, the engines borrow from GE expertise in building jet engines for fighter planes and well as commercial engines for the latest generation passenger jets like Boeing 787 Dreamliner. GE Aviation, an operating unit of GE (NYSE: GE), is a world-leading provider of jet and turboprop engines, as well as integrated systems for commercial, military, business and general aviation aircraft. It is purposefully designed to enable efficient supersonic flight over water and efficient subsonic flight over land, without requiring modifications to existing compliance regulations. Affinity is a new engine which will be launched by GE and will have an exceptional performance for subsonic and supersonic flights. The Affinity is a new class of medium bypass ratio engines that provide exceptional and balanced performance across supersonic and subsonic flights. The engine is a compromise between a big core for power and a small fan for wave drag, and Mach 1.4 is a compromise between higher speed and enough range. GE Aviation has a global service network to support these offerings. Turbofan Engines: GE's Affinity turbofan supersonic engine (AS2) Aeronautical Development Agency (ADA) Advanced Medium Combat Aircraft (AMCA) Analysis: Turbofan Engines: Twin GE F-414: Airbus (Airtech) CN235: Analysis: Turboprop Engines: CT7-9C3 engine: Airbus A330: Analysis The coatings minimize interaction with combustion gases, further protecting components inside the engine. The final engine configuration is a core with billions of operational hours – suggesting the CFM56 – and a new low-pressure section optimised for supersonic speed. The revolutionary new GE Adaptive Cycle Engine is the latest in a proud legacy of game-changing propulsion innovations from GE Aviation. [7], The high-pressure core is derived from the nine-stage compressor and single-stage turbine of the CFM56, matched to a new low-pressure section optimised for supersonic speed with a 133 cm (52in) diameter fan instead of the 155-173 cm (61-68.3in) fan of the 6:1 bypass ratio CFM56. Anticipated to be part of a family in the 16,000- to 20,000-pound-thrust range, the GE Affinity engine will be certified to operate at altitudes up to … GE then launched the Affinity program. [10], "Aerion Unveils Stage 5 GE Affinity Engine for Supersonic AS2", "Lockheed and Aerion to develop supersonic business jet", "Aerion releases configuration of supersonic jet engine", "GE nears milestones on $1.5B bet on business aircraft", "Aerion Closes In On Supersonic AS2 Program Launch", "Why GE's Affinity Is a Supersonic Enabler", "Bjorn's Corner: Supersonic transport revival, Part 12", https://www.geaviation.com/bga/engines/ge-affinity, https://en.wikipedia.org/w/index.php?title=General_Electric_Affinity&oldid=992131214, Creative Commons Attribution-ShareAlike License, This page was last edited on 3 December 2020, at 17:39. The CFM56 is derived from the B-1's GE F101. GE just introduced a new engine, the Affinity, for the Aerion AS2 supersonic business jet as the first new supersonic engine in more than 55 years. GE’s Affinity is a twin-shaft, twin-fan turbofan controlled by a next-generation Full Authority Digital Engine Control (FADEC) for enhanced dispatch reliability and onboard diagnostics. [3] This new class of engine is designed to meet Stage 5 noise limits and beat current emission standards. It is purposefully designed to enable efficient supersonic flight over water and efficient subsonic flight over land, without requiring modifications to existing compliance regulations. It is purposefully designed to enable efficient supersonic flight over water and efficient subsonic flight over land, without requiring modifications to existing compliance regulations. In February 2018, Aerion released the GE engine configuration. The twin-shaft, twin-fan engine with FADEC has a service ceiling of 18,300 m (60,000 ft). In February 2018, Aerion released the GE engine configuration. Affinity chromatography (AC) separates proteins on the basis of a reversible interaction between the target protein and a specific ligand attached to a chromatography base matrix. GE Aviation and Aerion jointly are developing the first engine in more than half a century to power a civil supersonic aircraft. GE just introduced a new engine, the Affinity, for the Aerion AS2 supersonic business jet as the first new supersonic engine in more than 55 years. The Affinity integrates a unique blend of proven military supersonic experience, commercial reliability and the most advanced business jet engine technologies. It lacks an afterburner, and has a combustor with advanced coatings and uses additive manufacturing technologies. In October 2018, Aerion and GE Aviation unveiled the quiet and efficient GE Affinity ™ engine, the first civil supersonic engine in more than 50 years. GE claims that the Affinity, which is based on the company's supersonic fighter jet experience and lessons learned from building engines for the Boeing 787 Dreamliner, will be … Follow GE Aviation on Twitter and YouTube. It is purposefully designed to enable efficient supersonic flight over water and efficient subsonic flight over land, without requiring modifications to existing compliance regulations. GE then launched the Affinity program. Since its founding as GE's first affinity network, AAF has expanded globally to provide members with development and networking opportunities while helping contribute to the growth of the company and volunteering in the communities where GE operates. This is limited by noise regulations at takeoff, and a lower compression core like the CFM56 is better suited to higher temperatures encountered supersonically. GE then launched the Affinity program. GE’s New Affinity Engine: The Future of Supersonic Air Travel admin April 12, 2019 Airplanes , Jet Charters A new engine from GE will be the latest, surpassing supersonic flight—traveling at a speed greater than sound (approximately 768 miles per hour)—and making more progress than the last 55 years according to some. GE’s Affinity is a twin-shaft, twin-fan turbofan controlled by a next generation Full Authority Digital Engine Control (FADEC) for enhanced dispatch reliability and onboard diagnostics. The engine is designed to meet stringent Stage 5 subsonic noise requirements and beat current emissions standards and, according to GE, the Affinity engine features: Efficient performance throughout the full flight envelope with a high-altitude service ceiling of 60,000. At the May 2017 EBACE, Aerion announced its selection of GE Aviation to power the Aerion AS2 supersonic business jet. Acoustically treated throughout, the Affinity is designed to meet or exceed regulatory requirements. 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