How fast can a 747 fly?

Question

And please give the answer in MPH? And how close is that to the sound barrier? Thank you in advance.

Answer 1

Just call it 600 MPH.

Answer 2

The 747-400, the latest version in service, is among the fastest airliners in service with a high-subsonic cruise speed of Mach 0.85 (567 mph or 913 km/h)

Answer 3

Well it can travel around 600MPH(960km/h).During the first flight of the Boeing 747-100 in mid-1960's,flight test pilot and engineers pushed the aircraft to the limit during the performance testing.The test pilot put the B747 on a steep dive at 40,000feet and it broke the sound barrier(mach1.1) without having some serious total structure failure.The reason behind this is that if you take a closer look at various commercial aircrafts wings,the B747 wings is amongst the most swept back wing made for a commercial aircraft.This feature that allows the aircraft to actually brake the sound barrier without having some serious total structure failure.

Answer 4

Mach .85 ,507 to 520knts,or 577mph to 598mph