What Speed Does a 747 Cruise At?

By Alice Nichols

A Boeing 747 is one of the most iconic aircraft in the world. Known for its size and power, it has been a favorite of passengers and pilots alike since its inception in the late 1960s.

One of the most frequently asked questions about this aircraft is, ‘What speed does a 747 cruise at?’ The answer to this question is not as straightforward as one might think. In this article, we will explore the various factors that influence the cruising speed of a Boeing 747.

Factors Affecting Cruising Speed

There are several factors that affect the cruising speed of an aircraft like a 747. These include:

  • Altitude: The higher an aircraft flies, the less air resistance it encounters. This means that it can fly faster at higher altitudes without using as much fuel.
  • Weight: The weight of an aircraft affects its speed because it changes how much lift is required to keep it in the air.
  • Weather: Strong headwinds can slow down an aircraft, while tailwinds can speed it up.
  • Air Traffic Control: Air traffic control may require an aircraft to fly at a certain speed or altitude for safety reasons.

Cruising Speed Range

The cruising speed range for a Boeing 747 typically falls between Mach 0.84 and Mach 0.88, which translates to around 570 to 590 miles per hour or around 920 to 950 kilometers per hour when flying at cruising altitude.

Mach Number

For those who may not be familiar with what “Mach” means, it is a term used to describe an object’s speed relative to the speed of sound. Mach numbers are denoted by the letter M followed by a number that indicates the multiple of the speed of sound. For example, Mach 1 means that an object is traveling at the speed of sound.

Conclusion

In conclusion, the cruising speed of a Boeing 747 can vary depending on several factors. However, most 747s cruise at a speed range between Mach 0.88. If you are planning on flying on a 747, you can expect to be traveling at speeds of around 570 to 590 miles per hour or around 920 to 950 kilometers per hour when cruising at altitude.