4 ms·

Not so: while the 747 is notionally faster in terms of maximum speed, most modern large jets all cruise at March 0.85. https://www.telegraph.co.uk/travel/trave

• tropo 8y ago
  Of course one can fly slower. The 747 is still capable of 0.92 for most variants and 0.9 for the 747-8. Other passenger jets can't do that.