depends on the jet, a Boeing 747-400 has a top speed of 614 mph at 35,000 feet
The maximum speed of a 747 is Mach 0.92.
The max speed for a 747-8 is 614mph, or 988km/h
The average speed of a 747 is about 560 mph.
There are many different types of 747. The average landing speed would be 150 knots for a 747. It can be anywhere from about 120 to 180 knots depending on gross weight
The space shuttle is bolted to the top of the 747 carrying it with extremely heavy duty bolts. The pilots of the 747 also have to fly lower and at a reduced speed in order to keep everything in place. While a typical 747 can reach speeds of about 570 mph, a 747 with a shuttle attached can only reach half that speed if everything is to run smoothly.
The maximum speed is 0.92 mach.
585 mph cruising speed
567 mph
No
Cruising speed is 585 mph. The max speed for a 747-8 is 614mph, or 988km/h.Maximum speed = 0.92 machI recently watched a YouTubevideo of a Boeing 747 that reached a ground speed of 744 MPH (1196 km/hr). This is the highest speed that I know of that a 747 has ever flew. Here's the link to the video if you want to watch it. http://www.youtube.comwatch?v=AHrsYKTnGAUIt's titled "Boeing 747 Fastest Speed Commercial Flight".0.85 Mach567 mph (913 km/h)AnswerThe Boeing 747 cruises at around 0.85 Mach, but in answer to how fast "can" one go, the answer is that Vmo/Mmo (maximum operating speed/mach) for the earlier versions is 0.89 Mach and for the 747-400 it's 0.92 Mach.
5 to 6 Mach... to give an example, the top speed of the 747 is only 0.9 Mach, the Concorde was 2.2 and the Boeing FA/18 Hornet is 1.8