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Contact us to discuss your requirements of drone motor thrust. Our experienced sales team can help you identify the options that best suit your needs.

There are way too many factors and unknowns that you would have to consider to simply calculate the thrust. The simplest way is to do it empirically - build a rig where you can simply weigh the motor, subtract its weight and start increasing rpm and measuring the thrust in steps and also current and voltage so that you can calculate efficiency. The most important factors that will impact the thrust and efficiency are: the type of the motor, the propeller pitch and diameter and the materials the propeller is made of and how well the motor and propeller are balanced. Generally the motors that have lower RPM/V (KV rating) and can run on higher voltages are more efficient because higher currents mean higher heat loss.

Keep in mind that even with the rig with the scale, your measurements won't be 100% representative because first of all the motors are attached to arms which create drag and energy loss due to non-zero stiffness and when you have several motors running in the same plane next to each other, they interfere and the actual thrust is slightly lower. The closer the tips of the propellers will be to each other, the less efficient it becomes. A recommended separation is at least 1/3 of the propeller diameter.

Choosing FPV Drone Motors in Depth

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Drone motors are a critical component of FPV drone flight performance. They are responsible for generating thrust, allowing the drone to fly. Therefore, choosing the right motor is essential for a good flying experience.

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When choosing FPV drone motors, you need to consider the following key factors

• Flying style and required performance: FPV drone flying styles are diverse, including racing, freestyle, long-range aerial photography, etc. Different flying styles have different requirements for motors. For example, racing flying requires strong power and fast response, so it requires high KV and large size motors. While long-range aerial photography requires efficient motors and low noise, so it requires low KV and small size motors.
• Drone weight and configuration: Drone weight and configuration also affect motor selection. Heavier drones require more powerful motors, while lighter drones can use motors with smaller power.
• Prop size and pitch: Prop size and pitch also affect motor performance. Larger size and pitch props require higher KV to generate sufficient thrust.
• Other factors: Other factors to consider include brand and quality, budget, and other pilots’ recommendations.

Representative FPV drone motors for reference:

MEPSKING 2207 1950KV brushless motor is a high-performance motor suitable for racing and freestyle flying. It has a high KV value and large size, which can provide strong power and fast response.

T-Motor F40 Pro 2400KV brushless motor is an efficient motor suitable for long-range aerial photography. It has a low KV value and small size, which can provide efficient power and low noise.

Emax Eco II 2205 2300KV brushless motor is an economical motor suitable for entry-level and intermediate pilots. It has an intermediate KV value and intermediate size, which can provide good performance and reliability.

Flying style and required performance

Flying style is one of the most important factors affecting motor selection. Racing flying requires strong power and fast response, so it requires high KV and large size motors. Freestyle flying also requires strong power, but more importantly, motor response. Therefore, freestyle flying motors usually choose high KV and medium size.

Long-range aerial photography requires efficient motors and low noise. Therefore, long-range aerial photography motors usually choose low KV and small size.

Drone weight and configuration

Drone weight and configuration also affect motor selection. Heavier drones require more powerful motors, while lighter drones can use motors with smaller power.

For example, a 500g racing drone requires 2306 size, 2400 KV motors. While a 200g freestyle drone can use 2205 size, 2200 KV motors.

Prop size and pitch

Prop size and pitch also affect motor performance. Larger size and pitch props require higher KV to generate sufficient thrust.

For example, drones using 5-inch props require 2400 KV motors. While drones using 4-inch props can use 2200 KV motors.

Other factors

Other factors to consider include brand and quality, budget, and other pilots’ recommendations.

Brand and quality

Well-known brand motors usually have better performance and reliability. Therefore, it is recommended to choose products from well-known brands when choosing motors.

Budget

FPV drone motors vary widely in price. Therefore, you need to choose motors according to your budget when choosing motors.

Other pilots’ recommendations

You can refer to the recommendations of other pilots when choosing motors. They can provide valuable experience and advice.

Conclusion

Choosing FPV drone motors is a complex process that requires considering a variety of factors. When choosing motors, be sure to do your research to ensure you choose the right motors for a good flying experience.

Additional tips to help you choose FPV drone motors:

If you are looking for more details, kindly visit flying test.

• Before choosing motors, first determine your flying style and budget.
• Read reviews and comparisons of different motor types and specifications.
• Discuss their recommendations with other FPV pilots.