How to Calculate Linear Speed of Helicopter Rotor Blade Tip

What is the formula to calculate the linear speed of a helicopter rotor blade tip?

The model of a helicopter rotor has four blades, each with a length of 4.00m from the central shaft to the blade tip. The model is rotated in a wind tunnel at a rotational speed of 540rev/min. What is the linear speed of the blade tip?

Formula to Calculate Linear Speed:

Linear Speed (m/s) = 2π x blade length (m) x rotational speed (rev/min) / 60

When it comes to calculating the linear speed of a helicopter rotor blade tip, you can use the formula stated above. The linear speed is determined by the product of 2π, the length of the blade in meters, and the rotational speed in revolutions per minute divided by 60 to convert it to seconds.

By plugging in the values given in the data, we can calculate the linear speed of the blade tip:

Linear Speed = 2π x 4.00m x 540 rev/min / 60 = 25.12 m/s