RC helicopter motor size?
RC Helicopter Motor Size Guide
Choosing the right motor size for your RC (Radio Controlled) helicopter is crucial to achieving optimal performance. The motor size directly influences factors such as lift capacity, speed, and maneuverability. This guide will help you understand how to select the best motor size for your specific needs.
Optimal Motor Size for RC Choppers
The optimal motor size for an RC helicopter depends on several factors including the weight of the aircraft, desired flight characteristics, and intended use (e.g., aerobatics or FPV racing). A larger motor can provide more power but may also increase the overall weight, affecting maneuverability.
Choosing the Right Motor Size for RC Helis
To choose the right motor size, consider:
- Aircraft Weight: Heavier helicopters require larger motors to generate sufficient lift.
- Purpose of Use: Motors designed for aerobatics need high torque and power density, while FPV racing motors prioritize speed and responsiveness.
- Battery Capacity: Ensure the motor can efficiently use your chosen battery type and capacity to maximize flight time.
Best Motor Sizes for RC Helicopters
The best motor sizes vary based on the model of the helicopter. For instance, a 450-size heli might benefit from a 2817 or 2822 motor, while larger models like 600 and above often use motors in the 3509 to 3512 range.
RC Helicopter Motors: Size Matters
The size of an RC helicopter motor is typically denoted by a number that represents its dimensions. For example, a 2817 motor indicates it has a stator length of 28mm and a diameter of 17mm.
Small vs Large Motors for RC Helis
Small Motors:
- Lighter weight, better maneuverability.
- Suitable for indoor flying or smaller models.
Larger Motors:
- Higher power output, suitable for larger and heavier helicopters.
- Better suited for outdoor use where more lift is needed.
Essential Tips on RC Helo Motor Sizes
Tips:
- Match motor size to the helicopter's weight and intended use.
- Consider the battery type (LiPo, NiMH) and capacity when selecting a motor.
- Test different motors within your budget range to find the best fit for performance needs.
Understanding RC Helo Motor Specifications
Motor specifications include:
- Kv Rating: Indicates the RPM per volt at no load. Higher Kv ratings mean faster speeds but lower torque.
- Stator Dimensions: Length and diameter, which determine motor size (e.g., 2817).
- Battery Compatibility: Ensure your chosen battery type matches the motor's requirements for optimal performance.
How to Pick a Motor Size for Your RC Heli
To pick the right motor size, follow these steps:
- Determine the helicopter’s weight and intended use (e.g., aerobatics or FPV).
- Select a motor with appropriate Kv rating based on your battery type.
- Test different motors to find the best balance of power, speed, and maneuverability.
Common Motor Sizes for RC Helicopters
Some common motor sizes include:
- 2817: Suitable for 450-size helicopters.
- 3509 to 3512: Ideal for larger models like 600 and above.
Top Motor Sizes for FPV RC Helis
For FPV racing, consider these motor sizes:
- 2817: Offers a good balance of power and speed.
- 2822: Provides higher RPM for faster speeds.
Motor Selection for RC Helicopter Models
Selecting the right motor size depends on your specific model. For example, a 450-size heli might use a 2817 or 2822 motor, while larger models like 600 and above often require motors in the 3509 to 3512 range.
Conclusion
Selecting the right motor size for your RC helicopter is essential for achieving optimal performance. By considering factors such as weight, intended use, and battery compatibility, you can choose a motor that provides the best balance of power, speed, and maneuverability. Whether you are flying indoors or outdoors, understanding these specifications will help you make an informed decision.
