What motors are used in 3D stunt machines? Analysis of hot topics across the Internet and purchasing guide
Recently, 3D aerobatics has become a hot topic in the model aircraft circle, especially the issue of motor selection, which has triggered widespread discussion. This article will combine the hot content of the entire network in the past 10 days to provide you with a detailed analysis of the key points of motor selection for 3D stunt machines and provide structured data reference.
1. Core parameter requirements for 3D stunt machine motors
According to data analysis from aircraft model forums and e-commerce platforms, 3D aerobatic machines have the following special requirements for motors:
| parameters | Requirements scope | Description |
|---|---|---|
| power to weight ratio | ≥500W/kg | Ensure strong power output |
| KV value | 800-1200 | Medium and high KV values are more suitable for 3D actions |
| Maximum current | ≥60A | Meet instantaneous high current demand |
| Number of poles | 6-12 poles | Multi-pole motor torque is more stable |
| weight | ≤200g | The key to lightweight design |
2. Ranking of popular 3D stunt machine motors in 2023
Based on the sales data and user reviews of major e-commerce platforms, we have sorted out the recent popular models:
| brand | Model | KV value | Weight(g) | Price (yuan) | Positive rating |
|---|---|---|---|---|---|
| T-Motor | AT3520 | 850KV | 185 | 680 | 98% |
| Hobbywing | XERUN-4235 | 1050KV | 175 | 520 | 95% |
| EMAX | GT3525 | 920KV | 192 | 450 | 97% |
| SunnySky | X3520 | 1100KV | 168 | 580 | 96% |
3. Analysis of key factors in motor selection
1.Body size matching: The diameter of the motor should match the installation position of the fuselage. Common 3D machines are suitable for 28-36mm diameter motors.
2.Propeller matching: The corresponding size propeller needs to be selected according to the KV value. 12-14 inch propellers are the most commonly used.
3.Thermal performance: High-quality heat dissipation design can extend the life of the motor. It is recommended to choose a design model with heat dissipation holes.
4.Bearing grade: Choose at least ABEC-5 grade bearings, which are more stable at high speeds.
4. Comparison of user measured data
Collect actual measurement data from the aircraft model community and compare the performance of different motors in 3D actions:
| test items | T-Motor AT3520 | Hobbywing XERUN-4235 | EMAX GT3525 |
|---|---|---|---|
| Hover stability | 9.2/10 | 8.8/10 | 9.0/10 |
| roll rate | 720°/s | 680°/s | 700°/s |
| continuous operating temperature | 62℃ | 68℃ | 65℃ |
| Battery life impact | -8% | -12% | -10% |
5. Purchase suggestions and precautions
1.Recommended for newbies: It is recommended to choose a motor with a KV value between 800-900, which is easier to control.
2.professional player: High-speed motors above 1000KV can be considered, but they need to be paired with high-quality ESCs.
3.Modification tips: When replacing the motor, the carrying capacity of the ESC must be considered simultaneously. It is recommended to keep a 20% margin.
4.Maintenance points: Regularly clean the carbon deposits inside the motor, and check the bearing status every 50 times.
6. Future technology development trends
According to industry trends, 3D stunt motors are developing in the following directions:
1. The proportion of brushless motors has reached 98%, and magnetic steel materials have been upgraded to improve efficiency.
2. Intelligent temperature control system becomes standard on high-end models
3. Carbon fiber shell application to reduce weight
4. Modular design facilitates quick replacement
Summary: Choosing a 3D stunt machine motor requires comprehensive consideration of factors such as power performance, weight control, and reliability. It is recommended to choose the most suitable model based on your own technical level and flight needs by referring to the above data analysis. With the advancement of technology, 3D stunt motors will bring a more extreme flying experience in the future.
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