155 knot average
138 knots average
it is commonly 140 mph on average
Its top speed, according to Boeing, is 609 mph
At cruise altitude (35,000ft) the average cruise speed is 460 knots - 530mph.
757
the cost of a Boeing 757-200 is $65 million and the cost of a 757-300 is $80 million
It honestly depends on what type of 757 you use. 757-200, -200F, -200WL, or -300 Boeing 757-200: 3,900 nautical miles Boeing 757-200F: 3,150 nautical miles Boeing 757-200WL: 4,100 nautical miles Boeing 757-300: 3,467 nautical miles
747
Mach 0.80 (530 mph or 458 knots) at 35,000 ft.
a Boeing 757 is a narrow body jet airliner
A Boeing 757 weighs from 220,000 pounds up to a maximum of 255,000 pounds. The 757 is a mid-size jet airliner.