What is the idle speed setting for the traversing machine? Analysis and practical guide of hot topics across the Internet
Recently, there has been a heated discussion in the community of traversing machine enthusiasts around the "idle speed setting". 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 the idle speed setting of the traversing machine, and provide structured data reference.
1. What is the idle speed of the traversing machine?

Idle speed refers to the lowest speed of the aircraft when the throttle is not pushed, which directly affects flight stability and response speed. According to the default settings of Betaflight and BLHeli firmware, the idle value is usually 4%-8%.
| Model type | Recommended idle speed range | Applicable scenarios |
|---|---|---|
| 5 inch racing machine | 5%-7% | Track Flying/Flower Flying |
| 3 inch cinewhoop | 4%-6% | indoor shooting |
| 7 inches long endurance | 3%-5% | Long distance cruise |
2. Core influencing factors of idle speed setting
According to the latest test data from the FPV Freedom Coalition, key factors affecting idle speed include:
| factors | degree of influence | Adjustment suggestions |
|---|---|---|
| Motor KV value | high | High KV motors need to reduce the idle speed by 1-2% |
| Blade size | in | Large propellers need to increase idling stability |
| battery voltage | low | The idle speed of 6S is 0.5-1% lower than that of 4S system |
| ambient temperature | in | In low temperature environment, the idle speed needs to be increased by 1% |
3. Practical cases in hot discussions
Actual measurement data shared by Reddit community user @DroneMaster:
| Set combination | Idle speed value | Hover stability | sudden drop response |
|---|---|---|---|
| Tmotor F60+5040 propeller | 5.5% | Excellent | 0.8 seconds |
| Emax Eco+5146 paddle | 6.2% | good | 1.2 seconds |
| Xing2 2207+5140 paddle | 4.8% | Average | 0.6 seconds |
4. Expert advice and setting tips
1.step-by-step calibration method: Start from the default value, adjust 0.5% each time, and test hover stability
2.Listening and positioning skills: At ideal idle speed, the motor should emit a uniform buzzing sound without intermittent jamming.
3.Black box data analysis: Verify whether the vibration value is within a reasonable range through the gyro_scale parameter (recommended <50)
5. Solutions to common problems
| Problem phenomenon | Possible reasons | Solution |
|---|---|---|
| Rollover at the moment of takeoff | Idle speed too low | Increase idle speed by 0.5-1% |
| Jump up and down on hover | Idle speed too high | Reduce idle speed by 0.3-0.8% |
| Motor is abnormally hot | ESC calibration deviation | Recalibrate ESC |
6. Future development trends
According to DJI’s latest patent documents, the next generation digital image transmission system may integrateAdaptive idle speed adjustmentFunction, the flight control can sense environmental factors in real time and automatically optimize parameters. It is expected that this technology will be applied to mainstream traversing machine platforms in 2024.
Summary: The idle speed setting of the traversing machine needs to be combined with the specific hardware configuration and usage scenarios. It is recommended that pilots establish their own parameter database. Save optimal settings in different environments, which will significantly improve flight experience and safety.
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