Engines
GE Tackling Environmental Challenges with Affinity Engine
GE Aviation remains on track to meet the timeline for Aerion's AS2 supersonic jet, while also ensuring that its Affinity engine can run on biofuel.

GE Aviation has provided a glimpse into design challenges that the company is working through as it progresses on the twin-shaft, medium-bypass Affinity engine selected to power the Aerion AS2 supersonic business jet. Aerion Supersonic and GE announced plans in October 2018 to move forward with the Affinity for the AS2, saying it would be designed using a “proven engine core adapted from GE’s commercial airline portfolio” with the latest technology full authority digital engine control, an advanced twin-fan, durable combustor, and advanced acoustic technology that would meet or exceed regulatory requirements.