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Questions and Answers
When was the Tupolev Tu-144's prototype's maiden flight?
31 December 1968
How many commercial flights did the Tu-144 conduct?
102
What was the average service altitude of the Tu-144?
16,000 metres (52,000 ft)
What was the speed at which the Tu-144 cruised?
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When did the Tu-144 first go supersonic?
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