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Continue to ChatIrkut makes 10% fuel advantage claim over NEO, MAX for MC-21 https://leehamnews.com/2013/08/29/irkut-makes-10-fuel-advantage-claim-over-neo-max-for-mc-21/
Irkut makes 10% fuel advantage claim over NEO, MAX for MC-21 https://leehamnews.com/2013/08/29/irkut-makes-10-fuel-advantage-claim-over-neo-max-for-mc-21/