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A comment on Boom (YC W16) – Supersonic Passenger Airplanes. Parent comment

Re:Boom (YC W16) – Supersonic Passenger Airplanes by jonknee on Monday March 21, 2016 @09:00PM (#11333626)
Yes, fuel is the major operating cost of an airliner...
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Re:Boom (YC W16) – Supersonic Passenger Airplanes by mnw21cam on Tuesday March 22, 2016 @04:50AM (#11335177)
Similarly, for a jet engine, the fuel burned in it accounts for 99% of the environmental impact.
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