# Question: How are RC electric motors rated?

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The letters kV stand for the the RPM of your motor per volt with no load. For example if you own a brushless motor with a kV rating of 4600 and 12V. Take the 4600, multiply by 12 to get 55,200 RPMs. This is the max RPMs that this motor can reach under no load.

## How are RC motors rated?

A motor’s Kv rating refers to its RPM per volt (RPM stands for revolutions per minute—but you knew that one, right?). For example, a motor with a 2200Kv rating should spin at 2,200 RPM when powered by one volt. A 3500Kv motor would spin at 3,500 RPM at one volt.

## What do the numbers mean on RC electric motors?

Generally, the first two numbers indicate the diameter of the entire can of the motor OR the diameter of the stator (the inner part of the motor) only. … Similarly, the second pair of numbers can indicate either the height of the entire motor, or only the height of the stator.

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## How do you size an electric RC airplane motor?

Electric motor power is stated in watts. 750 watts = 1 horsepower. An easy way to estimate power needs for RC hobby applications is to use 100 watts per pound for sport flying, 150 for aggressive aerobatics, 200 watts per pound for 3D flying.

## How do I choose the right motor for my RC plane?

If you select a motor with a higher kv and a smaller propeller the speed of the thrust will be higher, and as a result your plane will fly faster. For your first plane I recommend a motor kv between 850kv and 1500kv. The next factor to considering a motor is size.

## What’s the best brushless RC motor?

10 Best Brushless Motor Reviews

• Betafpv Brushless Motors. …
• Hglrc Brushless Motor. …
• Tamiya Brushless RC Motor. …
• Racerstar Brushless Motor. …

## What Kv motor is faster?

Kv describes the RPM (revolutions per minute) a motor does per Volt that is put into it. Generally speaking the more Kv a motor has, the more RPM and more power. For example, a 9000Kv motor would be faster than a 2200Kv motor. … So turns with a lower number means a faster motor.

## Why does a brushless motor have 3 wires?

there are 3 wires because it’s a 3 phase brushless system. at any given time two provide power and the other is a sensor. So even though they may split their time doing each, at a split second in time two provide power and the third is a sensor.

## Which electric motor is equal to what glow engine?

60 size engine equals around 1200 watts and a . 90 size engine equals about 1800 watts of electrical power. When considering a 4-stroke glow engine, the conversion factor is around 1500 watts per cubic inch.

## What does turns mean on a RC motor?

Turns. Turns refers to the number of times the copper wire has actually been revolved around the armature. The higher the number of turns greater is the torque generated and hence greater is the power delivered. However that also means less RPM rating for your rc car electric motor.

## What size electric motor do I need?

General rule of thumb: you need at least 2 lbs. of thrust for every 100 lbs. of fully-loaded boat weight (people and gear included).

## What is a 540 size motor?

540 has a diameter of 36mm. 380 has a diameter ~28mm. 280 has a diameter of 24mm. The S, L or XL after the numbers refers to the motor length.

## How do I know what size prop for my RC plane?

If choosing a three or four bladed propeller, over a two bladed one, a very general rule of thumb is to decrease the prop diameter by an inch and increase the pitch by an inch, but on some models fuselage and ground clearance issues might dictate which propeller size you can and can’t have on the model.

## Which motor is used in RC plane?

There are two main different motor types used in model aircraft: The brushed and the brushless. containing a stator and a rotor.

## What does KV mean in electric motors?

kilovolt

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## What Kv motor do I need?

As a guide, a good KV rating for a 1:10 scale brushless buggy or 400mm race/sport balanced speedboat motor is 3300KV – a smaller or more on-road/racing-focussed model will want a higher KV rating, whereas a larger or more off-road/sport-focussed model will want a lower one.