The lift off speed is dependant upon the weight of the aircraft. The heavier the aircraft the higher the speed. At maximum take off weight of 875,000 lbs (396,890 kgs) Vr (rotation speed) will be about 175 knots and V2 about 185 knots.
180 mph
Between 130 and 180 knots is enough for most (different weights, configurations, etc) Boeing 747 to get off the ground
Assume you want V2 speed. Set flaps 10. This should give you V1 of about 120 knots. Rotate at 140 knots and climb out at 148 knots.
The max take off weight is 396,890 kgs.
The engines provide thrust, making the plane move forward. As the plane picks up speed the air flows over the wing, creating lift. Once the lift reaches a certain amount, the plane lifts off the ground.
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.
About one minute from brake release to lift off at maximum take off weight.
The Boeing 747's takeoff speed if 156knts or 180mph.Take off speed for 747-400 fully loaded is 155-160 knots or almost 300 km/h or 180 mph. About the speed of of an F1 racer down a long straight.The standard speed for a Boeing 747 to take off is at about 120 miles per hour.Take off speed for 747-400 fully loaded is 155-160 knots or almost 300 km/h or 180 mph. About the speed of of an F1 racer down a long straight.
The maximum take-off weight of a Boeing 747-400 is 875,000 lbs
Between 130 and 180 knots is enough for most (different weights, configurations, etc) Boeing 747 to get off the ground
The maximum take-off weight of a Boeing 747-400 is 875,000 lbs
This can vary depending on weather and weight, but can be between 180-210 knots
It takes off by... 1)The pilot adding full flaps 2)The pilot adding full power 3)The pilot pulling bake on the stick and increasing lift.
The answer depends upon several factors, but a fully loaded 747-400 taking off from a sea level airport with a temperature of 15 C would be taking off with a speen of about 185 knots.
The answer depends upon several factors, but a fully loaded 747-400 taking off from a sea level airport with a temperature of 15 C would be taking off with a speen of about 185 knots.
The maximum take off weight for a 747-400 is 875,000 pounds (396,890 kg.).