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A comment on MT-Propeller 11 blade propeller delivers 15% increase in static thrust. Parent comment

Re:MT-Propeller 11 blade propeller delivers 15% increase in ... by bitwize on Friday January 06, 2023 @03:44PM (#34280781)
Back in the 80s there were experiments run with propfans -- propellers with many stubby blades that offered near jet-like performance while consuming half the fuel. They never got anywhere because propfan engines were large and noisy and the dropping price of oil made the fuel economy concerns less urgent.
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Re:MT-Propeller 11 blade propeller delivers 15% increase in ... by rbanffy on Friday January 06, 2023 @05:51PM (#34282490)
A think a lot of the noise was because the blades were counter-rotating. The size limitation was to be compatible with tail-mounted engines like the ones used in DC-9's and 727's.
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