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A comment on Airbus A350 successfully completes maiden test flight. Parent comment
The passenger miles per unit of fuel were not in favor of super sonic planes which were originally developed to compete with the smaller jets (707) that were around when development started. Those jumbos (747) made air travel really cheap.
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The passenger miles per unit of fuel were not in favor of super sonic planes which were originally developed to compete with the smaller jets (707) that were around when development started. Those jumbos (747) made air travel really cheap.