Guide to RC Electric Motors for Airplanes

Guide to RC Electric Motors for Airplanes

RC electric motors for airplanes are a popular choice among hobbyists and enthusiasts who enjoy building and flying model planes. With recent advancements in technology, electric motors have become increasingly powerful and efficient, offering a viable alternative to traditional gas or nitro engines. Whether you are a beginner or an experienced pilot, choosing the right motor for your airplane is crucial for achieving optimal performance. In this article, we will take a closer look at the key factors that you need to consider when choosing an RC electric motor for your airplane. From the difference between brushed and brushless motors to the size of the motor and the type of battery and ESC needed, we will provide you with a comprehensive overview of everything you need to know before making your purchase. By the end of this article, you will have a better understanding of how to choose the right motor for your airplane and ensure a successful and enjoyable flying experience.

Brushed vs Brushless Motors

When it comes to RC electric motors for airplanes, there are two main types – brushed and brushless motors. Here is a breakdown of the differences and pros and cons of each type:

  • Brushed Motors
    • Less expensive than brushless motors
    • Simple construction and easy to maintain
    • Good choice for beginners
    • Less efficient than brushless motors
    • Shorter lifespan due to wear and tear on brushes
  • Brushless Motors
    • More efficient than brushed motors
    • Longer lifespan due to no brushes to wear down
    • Higher initial cost than brushed motors
    • More complex construction and harder to maintain
    • Requires a compatible ESC to operate

Before making a decision on which motor to purchase, it’s important to consider the type of airplane and your level of experience. Some popular websites that offer a wide selection of RC electric motors for airplanes include Horizon Hobby, HobbyKing, and Motion RC. They provide detailed product descriptions and specifications that can help you choose the right motor for your airplane. It’s also worth consulting with fellow hobbyists on forums and social media groups to get their insights and recommendations.

Are brushless motors better than brushed?

Brushless motors are generally considered to be better than brushed motors due to their higher efficiency, longer lifespan, and lower maintenance. Brushless motors are also known for their smoother and quieter operation since they do not have any brushes that can wear down and cause friction. Here are some key differences between the two types of motors:

| Brushed Motors | Brushless Motors |
| — | — |
| Lower efficiency | Higher efficiency |
| Shorter lifespan | Longer lifespan |
| Higher maintenance | Lower maintenance |
| More vibration and noise | Quieter and smoother operation |

Some websites that offer more information on brushless motors include RC Geeks, which provides a breakdown of the advantages and disadvantages of both types of motors in the context of remote-controlled vehicles. EmaxUSA is another website that provides in-depth information on brushless motors and their applications for various industries and products.

In terms of products, brushless motors can be found in a wide range of applications including drones, electric vehicles, power tools, and more. Some popular brushless motor brands include Emax, T-Motor, and Axiom RC.

Selecting the proper RC electric motors for airplanes is crucial for the optimal performance of your RC airplane. Here are some factors to consider when selecting the right motor size:

  • Weight of the airplane
  • Wingspan and area of wings
  • Desired speed
  • Power consumption

Refer to the manufacturer’s recommendations for the suggested motor size for their specific airplane model. Here is a handy table with general recommendations of motor size based on wingspan:

Wingspan Motor Size
Less than 30 inches Mini size motors (2204 or smaller)
31-45 inches Small size motors (2205-2207)
46-60 inches Medium size motors (2208-2212)
Greater than 60 inches Large size motors (greater than 2212)

Always keep the weight of the airplane in mind when selecting the motor. A heavier airplane will require a more powerful motor to fly at the desired speed and altitude. Websites such as Motion RC and Electric Wingman offer a variety of motor sizes for RC airplanes, along with customer reviews and specifications to help guide your decision.

How do I choose the right size motor?

Choosing the right size motor can be overwhelming, but it’s crucial for your equipment’s efficiency and durability. Here are some factors to consider:

  • Equipment type and purpose.
  • Peak power requirements.
  • Weight of the equipment and load.
  • Speed needed for the equipment to operate effectively.

Several websites offer motor sizing calculators, such as Oriental Motor and Baldor-Reliance. Additionally, manufacturers provide sizing charts and guidelines for their motor products.

Consider seeking professional advice to ensure you select the correct motor size for your equipment.

RC Electric Motors for Airplanes: Battery Selection

Choosing the right battery for your RC electric motor for airplane is just as important as selecting the proper motor size. Here are some battery types to consider:

  • Nickel-Cadmium (NiCad)
  • Nickel-Metal Hydride (NiMH)
  • Lithium Polymer (LiPo)

LiPo batteries are commonly used for RC airplanes due to their high energy density and light weight. However, they can be more expensive than other battery types.

When selecting a battery, consider the following factors:

  • Capacity (measured in milliampere-hours)
  • Discharge rate (C rating)
  • Voltage

Refer to the manufacturer’s recommendations for the suggested battery size for their specific airplane model. Here is a table with general recommendations of battery size based on motor size:

Motor Size Battery
Mini size motors (2204 or smaller) 2S 500-800mAh
Small size motors (2205-2207) 3S 1000-1300mAh
Medium size motors (2208-2212) 3S 2200mAh
Large size motors (greater than 2212) 4S 3000mAh or greater

Websites such as MaxAmps and HobbyKing offer a variety of batteries for RC airplanes, along with customer reviews and specifications to help guide your decision.

How do I choose a battery for my motor?

To choose the right battery for your motor, you need to consider the following things:

  • The required voltage of your motor
  • The required capacity or ampere-hour rating of the battery
  • The type of connector needed for your motor
  • The physical size and weight of the battery
  • The durability and lifespan of the battery

It is important to check your motor’s specifications to know the voltage and capacity required to power it. Also, make sure to choose a battery with a matching connector for the motor.

Some popular brands for motor batteries include Energizer, Duracell and Varta. You can also search for batteries on websites such as Amazon, Battery Universe, or Battery Mart. Make sure to read product reviews and compare prices before making a purchase.

Brand Rating Price (USD)
Energizer 4.5 stars $50
Duracell 4.5 stars $45
Varta 4.0 stars $40

RC electric motors for airplanes are crucial components that provide the power needed to fly. When choosing a motor, several factors should be considered to ensure the proper size and power for your aircraft. Amps, voltage, KV rating, propeller size, and aircraft weight are all essential factors to consider when selecting a motor.

Amps refer to the maximum amount of current the motor can handle and are an indicator of the motor’s power. Higher amps result in more power and larger motors. Voltage plays a role in the motor’s speed, with higher voltage resulting in a faster motor. The KV rating, or RPM per volt, is another important consideration in selecting a motor. A higher KV rating means a motor will spin faster. The propeller size should match the motor’s power and rotate at the recommended RPM. Lastly, the weight of the aircraft determines the amount of power needed to lift it off the ground, so it is imperative to select a motor that can handle the aircraft’s weight.

One popular brand for RC electric motors is Turnigy, which offers a variety of sizes and KV ratings to match different aircraft types. Another brand that is commonly used is Emax, which has a reputation for producing high-quality brushless motors for RC aircraft.

It is also important to choose a motor controller, or ESC, that can handle the motor’s power. Brushless motors require an electronic speed controller (ESC) to regulate the power and ensure smooth operation. The ESC should have a maximum amperage rating higher than the motor’s maximum amperage draw to prevent overheating or failure. HobbyKing offers a variety of ESC options to choose from, including programmable ESCs allowing users to customize settings for specific aircraft.

In conclusion, selecting the right RC electric motor for airplanes is essential for achieving optimal performance and a successful flight. Factors including amps, voltage, KV rating, propeller size, and aircraft weight should be considered when selecting a motor. Brands such as Turnigy and Emax offer quality brushless motors, and an appropriate ESC is crucial to regulate power. With these in mind, you’ll be able to choose the right motor and ESC for your aircraft, for a thrilling and safe flying experience.

What does an electronic speed controller do?

An electronic speed controller (ESC) controls the speed of an electric motor by varying the amount of power delivered to the motor. It does this by regulating the electric current flowing from the battery to the motor. ESCs are commonly used in radio-controlled vehicles, drones, and industrial applications. Some popular brands of ESCs include Castle Creations, Hobbywing, and Traxxas. To learn more about ESCs, visit websites such as RC Planet or HobbyKing.

RC Electric Motors for Airplanes

RC electric motors are the heart of any electric-powered airplane. Whether you’re building a new plane or upgrading an existing model, choosing the right motor is crucial for performance and reliability.

Types of Motors:
There are different types of motors available in the market, such as brushed, brushless, outrunner, and inrunner. Brushless outrunner motors are the most popular choice for RC airplanes due to their high torque, efficiency, and reliability.

Motor Size:
The size of the motor depends on the size and weight of the airplane. Larger planes require larger motors with higher power ratings. Make sure to check the manufacturer’s recommendations for motor size and power.

Battery and ESC:
Choosing the right battery and ESC (Electronic Speed Controller) is also essential for efficient motor performance. Make sure to choose a battery and ESC that are compatible with your motor and airplane.

Motor Mounting:
Proper motor mounting is important for the performance and safety of your RC airplane. Positioning the motor on the firewall and attaching it firmly with screws, bolts, or blind nuts is crucial for proper alignment and balance. Websites such as HobbyKing and Motion RC offer a variety of motor mounts for RC airplanes.

When it comes to RC electric motors for airplanes, choosing the right motor size, type, battery, and ESC are crucial for efficient and reliable performance. Proper motor mounting is also important for the safety and balance of the airplane. Refer to the manufacturer’s recommendations and consult with experts in the RC airplane community for guidance and advice.

What is the importance of mounting in a car?

Mounting in a car refers to the process of securing the engine, transmission, and other essential components to the frame of the vehicle. The importance of this process cannot be overstated, as it ensures the stability and safety of the car while driving. Some benefits of proper car mounting include:

  • Reduced vibration and noise while driving.
  • Improved handling and steering ability of the car.
  • Enhanced safety on the road, as loose or improperly mounted components can lead to accidents.
  • Increased durability and lifespan of the car.

Proper car mounting is crucial for the overall performance of the vehicle. If you’re looking for high-quality car mounting products, check out websites such as Amazon or AutoZone for a wide range of options.


Choosing the right RC electric motor is crucial for the performance and longevity of your airplane. Consider factors such as the motor type, size, battery, and ESC when selecting a motor for your airplane. Follow the proper installation and maintenance guidelines to ensure safety and longevity of the motor.

Several websites offer a wide range of RC airplane motors, including Horizon Hobby, Motion RC, and Tower Hobbies. These websites also provide helpful resources, tips, and tutorials to assist you in selecting the best motor for your airplane.

Always refer to the manufacturer’s instructions for proper installation, operation, and maintenance of the motor and airplane. Regularly inspect and maintain your motor, battery, and ESC to ensure optimal performance and longevity.

In conclusion, selecting and installing a proper RC electric motor for your airplane requires careful consideration and attention to detail. It is essential to choose a motor that matches your airplane’s requirements while considering factors such as power output, efficiency, and reliability.