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Continue to ChatPontifications: Jets took 30 years to match piston efficiency https://leehamnews.com/2017/08/28/pontifications-jets-took-30-years-match-piston-efficiency/
Pontifications: Jets took 30 years to match piston efficiency https://leehamnews.com/2017/08/28/pontifications-jets-took-30-years-match-piston-efficiency/