What brushless motor is used for fixed wing?
Among model aircraft enthusiasts, power system selection for fixed-wing aircraft has always been a hot topic. Brushless motors have become the preferred power source for fixed-wing aircraft due to their high efficiency, long life and low noise. This article will combine the popular discussions and data analysis on the Internet in the past 10 days to give you a detailed introduction to the selection points of brushless motors for fixed-wing aircraft.
1. Basic parameters of brushless motor
When choosing a brushless motor, you need to pay attention to the following core parameters: KV value, power, weight and size. The following is a parameter comparison of recent popular fixed-wing brushless motors:
| Brand | Model | KV value | Power(W) | Weight(g) | Applicable models |
|---|---|---|---|---|---|
| T-Motor | MN3110 | 470KV | 300 | 78 | 1.2-1.5 meters fixed wing |
| SunnySky | X2216 | 880KV | 250 | 56 | Fixed wing under 1 meter |
| EMAX | GT2215 | 925KV | 220 | 48 | 0.8-1.2m fixed wing |
2. Selection of KV value
The KV value represents the motor's rotational speed per minute at 1V voltage and is a key indicator for selecting a brushless motor. According to recent forum discussions, the commonly used KV value ranges for fixed-wing aircraft are as follows:
| Aircraft type | Recommended KV value range | Typical propeller dimensions |
|---|---|---|
| Large fixed wing (1.5m+) | 300-500KV | 12-14 inches |
| Medium fixed wing (1-1.5m) | 500-800KV | 9-11 inches |
| Small fixed wing (less than 1m) | 800-1200KV | 6-8 inches |
3. Popular brand recommendations
According to the e-commerce platform sales data and forum discussions in the past 10 days, the following brushless motor brands are most favored by fixed-wing players:
| Brand | Hot selling models | price range | User ratings |
|---|---|---|---|
| T-Motor | MN3110/MN4010 | ¥300-500 | 4.8/5 |
| SunnySky | X2216/X2820 | ¥200-400 | 4.7/5 |
| EMAX | GT2215/GT2815 | ¥150-300 | 4.6/5 |
4. Matching of motor and battery
The performance of the motor cannot be achieved without the support of the battery. The most discussed battery configuration options recently are as follows:
| Motor power | Recommended battery voltage | Capacity recommendations | Discharge rate |
|---|---|---|---|
| Below 200W | 3S(11.1V) | 1300-2200mAh | 25-35C |
| 200-400W | 4S(14.8V) | 2200-3300mAh | 30-45C |
| 400W or more | 6S(22.2V) | 3000-5000mAh | 35-50C |
5. Installation precautions
According to recent forum fault discussion posts, special attention should be paid to the following points when installing brushless motors:
1. The motor base must be firmly fixed. Vibration will cause efficiency loss and component damage.
2. It is recommended to install the heat sink at the rear of the motor to avoid overheating and affecting lifespan.
3. The three power cords must be connected correctly. Wrong phase sequence will cause the motor to rotate in reverse.
4. The propeller and motor shaft must be completely vertical. Deflection will cause additional resistance.
6. Future trends
Judging from recent industry trends, the development of fixed-wing brushless motors shows the following trends:
1. Lightweight design: The application of new materials reduces the weight of the motor by 10-15%
2. Intelligent control: integrated speed sensor and temperature protection function
3. Modular design: quickly replace rotor components with different KV values
4. High efficiency: New magnetic circuit design increases efficiency to more than 90%
Choosing the right brushless motor requires considering factors such as aircraft size, flight performance, and budget. Hopefully the structured data in this article will help you make an informed choice.
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