TechnologyGE Aerospace CEO Larry Culp reaffirmed the company’s commitment to the Open Fan engine architecture during an investor event, responding directly to questions about the project’s viability, according to The Air Current.
Culp’s comments aimed to address mounting skepticism over the Open Fan concept, which remains central to next-generation development efforts at CFM International, the GE and Safran joint venture.
The unducted Open Fan concept targets a 20% reduction in fuel consumption compared to current ducted engine designs. Aircraft manufacturers remain cautious over integration challenges posed by the new architecture.

Airbus has released multiple commercial aircraft concepts utilizing open rotor configurations, while Boeing had pursued a transonic truss-braced wing project with NASA, which has since been paused.
Current engine programs such as the CFM Leap and Pratt & Whitney GTF have faced reliability and cost issues, contributing to customer reluctance to commit to a single-vendor radical design.
Design, production, and durability problems with existing turbofans have resulted in extended groundings of aircraft including the 737, A320neo, A220, and E2 families.
CFM International continues technical development of the Open Fan, with future milestones expected to focus on validation and integration with airframer partners.
