What is kv

As a result, brushless motors have gained a lot of popularity and have become the motor of choice in many drones. The Kv motor rating of a brushless motor is very important as it determines other factors and parameters of the motors such as the efficiency, purpose of the drone, agility of the drone, flight time, dimension of the propeller, flight time, and so on.

Also, your knowledge of the Kv rating of a brushless motor will come in handy when you are trying to determine which motor should be used in a particular aircraft. For example, an FPV racing quadcopter will require a motor better if it is brushless that has a high rpm for high speed. So this means you need a motor with a high Kv rating but a propeller with a small diameter. By now, you should have a good understanding of the Kv rating of motors. The higher the number of copper wirings or the strength of the magnet, the higher the Kv value, and vice versa.

The size of your drone is the major determining factor of the Kv rating of the motor you are going to want to use. If your drone is light, then it makes the most sense to use a high Kv motor. Lighter drones will also have small propellers and by using a high Kv motor, the motor will want to spin the propeller faster, an act that will be successful due to the small size of the prop.

As a result, high Kv motors are used in lighter drones or racing drones where speed is prioritized. On the other hand, heavier drones, which will have larger props, will require a low Kv motor. A low Kv motor will be able to rotate the motor without any problem and will also be able to generate the high torque needed to lift the motor.

But should you use a high Kv motor for a heavy drone, the motor will attempt to rotate the larger propeller at a high speed. Matched Categories Potential Unit. How to pronounce KV? Alex US English. David US English. Mark US English. Daniel British. Libby British. Mia British. Karen Australian. Hayley Australian. Natasha Australian.

Veena Indian. March 29, at am. February 20, at pm. Point accepted but I think your reading too into the theory. Lower better for bigger, Larger better for smaller. February 26, at pm. Anthony Blighe. March 27, at pm. February 29, at am. Ray DeWeese. March 28, at pm. May 4, at pm. If its not a 3 phase motor why does it have 3 wires and how does voltage determine the rpm? December 15, at pm.

Greg Johnson. June 7, at am. Leo Damian Plowman. September 6, at pm. March 4, at pm. Leave a Reply Cancel reply Your email address will not be published. Featured Video. Sidebar Ads. Nixie: Drone Water-Sampling System.

Sony Airpeak S1. Own A Drone. Did you know that Brad is a KV? For real? Yeah man, it's crazy I know. Several of these tanks are used in the game World of Tanks. It's powerful but extremely slow.

Oh shit , a KV with derp gun on it. Tim : see that girl over there, shes a kv. Tom: really?