RC Brushless Motors. What is KV ? Motor Size? Propeller Size?

In this video, I explain the basic terms such as KV for brushless motors used for RC model airplanes and drones, the values ​​​​that express the physical dimensions of the motors, and the importance of the propeller size.
I tried to show it simply without going into too much detail to make it as understandable as possible.

UNI-T Digital Thermometer UT306S: https://s.click.aliexpress.com/e/_DmJ...
Digital Laser Tachometer (RPM Meter): https://s.click.aliexpress.com/e/_DCy...

My Web Site (KendinYap): www.rcpano.net

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