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Thursday, December 19, 2024

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


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

Howdy, in response to your questions about how to choose motors, props and ESC's, in this live episode we'll cover the basics, see +15 real-life examples & settle on 3 or so great combo's to help you. FULL details below, Press SHOW MORE to see them, Matt

The primary purpose of this video is to understand the basics behind such choices for RC models, to provide real life examples & to pass on a few combinations that work really well.


I will purposefully keep the tech jar down to a bare minimum, as such some of the explanations will be technically correct, but enough to give you an idea on the basics.

I so wish I knew about these 3 motor combinations when I first started. They cover all the main bases from smaller models in combo #3, to fun in #2 to some serious flight times with combo #1.

A cheaper, but none-the-less fantastic combination is that of a D2826 2200Kv motor with a 6x4 propeller.


Use a 6x4 on 3S with a 30A ESC, however if you fancy some fun and don't care about the motor bearings, run with a 6x4 on 4S with a 40A ESC and what your model haul across the flight line.

Electric brushless motors for drones and RC airplanes. A simple topic, right? OK, maybe if you have a few years in the hobby. But if you are only starting, you might have at least a few questions. In this video let's discuss some basic (beginner to intermediate level) aspects of brushless electric (BLDC) motors used in RC hobby to drive drones and airplanes


how to measure the motor size

what is KV and how it correlates to rotation speed

motor torque

motor KV vs torque - how KV changes torque and how it correlates with another motor constant: KT

stator and rotor - what is what and it's named like that

number of coils and poles - 12N14P etc

Does motor care about rotation direction

How to change the rotation direction of a motor

mounting holes spacing: 16x19 and 16x16 motor holes pattern

how not to fry your motor right away


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

Howdy, in response to your questions about how to choose motors, props and ESC's, in this live episode we'll cover the basics, see +15 real-life examples & settle on 3 or so great combo's to help you. FULL details below, Press SHOW MORE to see them, Matt

The primary purpose of this video is to understand the basics behind such choices for RC models, to provide real life examples & to pass on a few combinations that work really well.


I will purposefully keep the tech jar down to a bare minimum, as such some of the explanations will be technically correct, but enough to give you an idea on the basics.

I so wish I knew about these 3 motor combinations when I first started. They cover all the main bases from smaller models in combo #3, to fun in #2 to some serious flight times with combo #1.

A cheaper, but none-the-less fantastic combination is that of a D2826 2200Kv motor with a 6x4 propeller.


Use a 6x4 on 3S with a 30A ESC, however if you fancy some fun and don't care about the motor bearings, run with a 6x4 on 4S with a 40A ESC and what your model haul across the flight line.

Electric brushless motors for drones and RC airplanes. A simple topic, right? OK, maybe if you have a few years in the hobby. But if you are only starting, you might have at least a few questions. In this video let's discuss some basic (beginner to intermediate level) aspects of brushless electric (BLDC) motors used in RC hobby to drive drones and airplanes


how to measure the motor size

what is KV and how it correlates to rotation speed

motor torque

motor KV vs torque - how KV changes torque and how it correlates with another motor constant: KT

stator and rotor - what is what and it's named like that

number of coils and poles - 12N14P etc

Does motor care about rotation direction

How to change the rotation direction of a motor

mounting holes spacing: 16x19 and 16x16 motor holes pattern

how not to fry your motor right away

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