After 5 minutes it's assumed that it's still in climb and on its standard departure route therefore the maximum speed will be 250 knots as it's below 10,000 feet. Only act can provide permission to exceed this. Note, authors after take off are governed by specific speeds and sound regulations , each airport will have it's departures speeds set
Usually the speed of a Boeing 747 reaches at about 525 to 600 miles per hour.
The average speed of a 747 is about 560 mph.
The maximum speed is 0.92 mach.
585 mph cruising speed
180 mph
The Maximum Take-Off Weight for a Boeing 747-100 is 333, 390kg; a Boeing 747-200 and 747-300 is 377,842kg; a Boeing 747-400 is 396,890kg; a Boeing 747-400ER is 412,775kg and the Boeing 747-8I is 442,253kg.
The maximum speed is 0.92 mach.
maximum speed is 0.92 mach.
maximum speed is 0.92 mach.
747
Max speed is 0.92 mach.
The Boeing 747-8I series has a cruising speed of 570 mph (Mach 0.855). It's maximum speed (both the 400 and 8I series) is 614 mph (Mach 0.92).