4006 SL Motor
The 4006 SL motor is available in three KV configurations to suit different performance requirements. Select your variant below to view specific specifications and test data.
Key Features:
- High efficiency for extended flight times
- Durable construction with premium materials
- Optimized for 13"–16" propellers
- Lightweight design (67g) for agile performance
- Multiple KV options to suit different applications
- 380 KV
- 400 KV
- 440 KV
380 KV - Specifications
Motor Specifications:
- KV Rating: 380 RPM/V
- Kt (Motor Torque Constant): 0.033 Nm/A @ 4826 RPM
- Weight: 67g ± 2g
- Max Thrust: 1,935g (with TM 16.2×5.3 prop)
- Voltage Range: 22V – 25V (6S LiPo)
- Io (24@V): 0.6A (24@V)
- Max Continuous Current: 9A (180s)
- Max Continuous Power: 233W (180s)
- Power Density: 2.9 W/g (Rated), 4.73 W/g (Maximum)
- Motor Diameter: Ø 44.6 mm
- Motor Length: 20 mm
- Stick Out Shaft Diameter: Ø 4 mm
- Stator Poles: 18S
- Magnetic Poles: 24P
- Bearings: Dual 619/4-2RS Sealed
- Inductance per phase (Winding Inductance): 0.119 (≈0.03) mH
- Resistance per phase (Rph): 0.23 (≈0.03) Ω
- Motor Mount Pattern @ 90 deg: 4 × M3 @ PCD Ø 25 mm, depth: 2.5 mm
- Propeller Mount Pattern: 4 × M3 @ PCD Ø 12 mm, depth: 3 mm
- Compatible Propeller Size: 13" to 16"
Test Data - 380 KV
TM 14 x 4.8 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 10-08-2024
- Environmental Temp: 29°C
- Humidity: 60%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.1 | 0.9 | 2586 | 194 | 0.03 | 22.6 | 8.6 | 45°C (@70% 10 min Constant) |
| 1400 | 40 | 25.0 | 1.0 | 3075 | 327 | 0.05 | 25.0 | 13.1 | 45°C (@70% 10 min Constant) |
| 1500 | 50 | 25.0 | 2.1 | 3979 | 570 | 0.09 | 52.5 | 10.9 | 45°C (@70% 10 min Constant) |
| 1600 | 60 | 25.0 | 3.5 | 4755 | 797 | 0.13 | 87.5 | 9.1 | 45°C (@70% 10 min Constant) |
| 1700 | 70 | 24.9 | 5.2 | 5337 | 1067 | 0.18 | 129.5 | 8.2 | 45°C (@70% 10 min Constant) |
| 1800 | 80 | 24.8 | 7.1 | 5964 | 1285 | 0.21 | 176.1 | 7.3 | 50°C (Maximum) |
| 1900 | 90 | 24.7 | 9.6 | 6550 | 1575 | 0.26 | 237.1 | 6.6 | 50°C (Maximum) |
| 1950 | 95 | 24.7 | 10.3 | 6617 | 1657 | 0.27 | 254.4 | 6.5 | 50°C (Maximum) |
| 2000 | 100 | 24.7 | 10.4 | 6602 | 1663 | 0.28 | 256.9 | 6.5 | 50°C (Maximum) |
SS 15 x 5.5 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 04-04-2025
- Environmental Temp: 33°C
- Humidity: 57%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.1 | 0.5 | 2127 | 192 | 0.04 | 12.6 | 15.3 | 58°C (@70% 10 min Constant) |
| 1400 | 40 | 25.0 | 1.3 | 2860 | 367 | 0.07 | 32.5 | 11.3 | 58°C (@70% 10 min Constant) |
| 1500 | 50 | 25.0 | 2.7 | 3659 | 625 | 0.12 | 67.5 | 9.3 | 58°C (@70% 10 min Constant) |
| 1600 | 60 | 24.9 | 4.5 | 4294 | 890 | 0.17 | 112.1 | 7.9 | 58°C (@70% 10 min Constant) |
| 1700 | 70 | 24.8 | 6.7 | 4861 | 1154 | 0.22 | 166.2 | 6.9 | 58°C (@70% 10 min Constant) |
| 1800 | 80 | 24.7 | 9.2 | 5354 | 1409 | 0.27 | 227.2 | 6.2 | 61°C (Maximum) |
| 1900 | 90 | 24.5 | 12.4 | 5788 | 1697 | 0.33 | 303.8 | 5.6 | 61°C (Maximum) |
| 1950 | 95 | 24.5 | 13.0 | 5833 | 1756 | 0.34 | 318.5 | 5.5 | 61°C (Maximum) |
| 2000 | 100 | 24.5 | 13.0 | 5837 | 1751 | 0.34 | 318.5 | 5.5 | 61°C (Maximum) |
TM 16.2 x 5.3 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 10-08-2024
- Environmental Temp: 29°C
- Humidity: 60%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.1 | 0.6 | 2100 | 223 | 0.05 | 15.1 | 14.8 | 53°C (@70% 10 min Constant) |
| 1400 | 40 | 25.1 | 1.4 | 2801 | 424 | 0.08 | 35.1 | 12.1 | 53°C (@70% 10 min Constant) |
| 1500 | 50 | 25.0 | 2.8 | 3582 | 722 | 0.13 | 70.0 | 10.3 | 53°C (@70% 10 min Constant) |
| 1600 | 60 | 25.0 | 4.7 | 4265 | 1010 | 0.18 | 117.5 | 8.6 | 53°C (@70% 10 min Constant) |
| 1700 | 70 | 24.9 | 6.9 | 4826 | 1293 | 0.23 | 171.8 | 7.5 | 53°C (@70% 10 min Constant) |
| 1800 | 80 | 24.8 | 9.4 | 5337 | 1511 | 0.27 | 233.1 | 6.5 | 60°C (Maximum) |
| 1900 | 90 | 24.7 | 12.5 | 5770 | 1862 | 0.33 | 308.8 | 6.0 | 60°C (Maximum) |
| 1950 | 95 | 24.6 | 13.2 | 5834 | 1935 | 0.34 | 324.7 | 6.0 | 60°C (Maximum) |
| 2000 | 100 | 24.7 | 13.1 | 5853 | 1889 | 0.34 | 323.6 | 5.8 | 60°C (Maximum) |
Performance Summary:
- Best Efficiency: TM 14×4.8 @ 40% throttle (13.1 g/W, 327g thrust)
- Maximum Thrust: TM 16.2×5.3 @ 95% throttle (1,935g thrust, 6.0 g/W)
- Balanced Performance: TM 14×4.8 @ 70% throttle (1,067g thrust, 8.2 g/W)
- Operating Temperature: 45-61°C depending on load
- Recommended Continuous: 70% throttle max for sustained flight
Recommended Applications - 380 KV
- Long-endurance aerial photography
- Efficiency-focused racing
- Extended surveillance missions
- Battery life-critical applications
400 KV - Specifications
Motor Specifications:
- KV Rating: 400 RPM/V
- Kt (Motor Torque Constant): 0.030 Nm/A @ 4800 RPM
- Weight: 67g ± 2g
- Max Thrust: 1,787g (with TM 16.2×5.3 prop)
- Voltage Range: 22V – 25V (6S LiPo)
- Io (24@V): 0.7A (24@V)
- Max Continuous Current: 10A (180s)
- Max Continuous Power: 250W (180s)
- Power Density: 2.72 W/g (Rated), 5.11 W/g (Maximum)
- Motor Diameter: Ø 44.6 mm
- Motor Length: 20 mm
- Stick Out Shaft Diameter: Ø 4 mm
- Stator Poles: 18S
- Magnetic Poles: 24P
- Bearings: Dual 619/4-2RS Sealed
- Inductance per phase (Winding Inductance): 0.110 (≈0.03) mH
- Resistance per phase (Rph): 0.23 (≈0.03) Ω
- Motor Mount Pattern @ 90 deg: 4 × M3 @ PCD Ø 25 mm, depth: 2.5 mm
- Propeller Mount Pattern: 4 × M3 @ PCD Ø 12 mm, depth: 3 mm
- Compatible Propeller Size: 13" to 16"
Test Data - 400 KV
TM 14 x 4.8 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 10-08-2024
- Environmental Temp: 29°C
- Humidity: 60%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.2 | 0.5 | 2318 | 155 | 0.04 | 12.6 | 12.3 | 52°C (@70% 10 min Constant) |
| 1400 | 40 | 25.1 | 1.1 | 3126 | 309 | 0.06 | 27.6 | 11.2 | 52°C (@70% 10 min Constant) |
| 1500 | 50 | 25.1 | 2.3 | 4050 | 564 | 0.10 | 57.7 | 9.8 | 52°C (@70% 10 min Constant) |
| 1600 | 60 | 25.0 | 3.8 | 4843 | 800 | 0.14 | 95.0 | 8.4 | 52°C (@70% 10 min Constant) |
| 1700 | 70 | 25.0 | 5.6 | 5417 | 1044 | 0.19 | 140.0 | 7.5 | 52°C (@70% 10 min Constant) |
| 1800 | 80 | 24.9 | 7.7 | 6015 | 1305 | 0.23 | 191.7 | 6.8 | 56°C (Maximum) |
| 1900 | 90 | 24.8 | 10.4 | 6586 | 1591 | 0.29 | 257.9 | 6.2 | 56°C (Maximum) |
| 1950 | 95 | 24.8 | 10.9 | 6700 | 1652 | 0.29 | 270.3 | 6.1 | 56°C (Maximum) |
| 2000 | 100 | 24.8 | 10.9 | 6703 | 1644 | 0.29 | 270.3 | 6.1 | 56°C (Maximum) |
SS 15 x 5.5 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 04-04-2025
- Environmental Temp: 33°C
- Humidity: 57%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.1 | 0.6 | 2148 | 193 | 0.04 | 15.1 | 12.8 | 55°C (@70% 10 min Constant) |
| 1400 | 40 | 25.0 | 1.4 | 2892 | 368 | 0.07 | 35.0 | 10.5 | 55°C (@70% 10 min Constant) |
| 1500 | 50 | 25.0 | 2.8 | 3685 | 611 | 0.12 | 70.0 | 8.7 | 55°C (@70% 10 min Constant) |
| 1600 | 60 | 24.9 | 4.7 | 4340 | 876 | 0.17 | 117.0 | 7.5 | 55°C (@70% 10 min Constant) |
| 1700 | 70 | 24.8 | 6.9 | 4913 | 1136 | 0.22 | 171.1 | 6.6 | 55°C (@70% 10 min Constant) |
| 1800 | 80 | 24.7 | 9.7 | 5381 | 1454 | 0.28 | 239.6 | 6.1 | 61°C (Maximum) |
| 1900 | 90 | 24.5 | 13.0 | 5820 | 1738 | 0.34 | 318.5 | 5.5 | 61°C (Maximum) |
| 1950 | 95 | 24.5 | 13.5 | 5884 | 1780 | 0.34 | 330.8 | 5.4 | 61°C (Maximum) |
| 2000 | 100 | 24.5 | 13.6 | 5868 | 1787 | 0.35 | 333.2 | 5.4 | 61°C (Maximum) |
TM 16.2 x 5.3 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 10-08-2024
- Environmental Temp: 29°C
- Humidity: 60%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.0 | 0.7 | 2120 | 240 | 0.05 | 17.5 | 13.7 | 55°C (@70% 10 min Constant) |
| 1400 | 40 | 25.0 | 1.6 | 2815 | 457 | 0.09 | 40.0 | 11.4 | 55°C (@70% 10 min Constant) |
| 1500 | 50 | 24.9 | 3.1 | 3613 | 797 | 0.14 | 77.2 | 10.3 | 55°C (@70% 10 min Constant) |
| 1600 | 60 | 24.8 | 5.0 | 4288 | 1047 | 0.19 | 124.0 | 8.4 | 55°C (@70% 10 min Constant) |
| 1700 | 70 | 24.7 | 7.4 | 4812 | 1327 | 0.24 | 182.8 | 7.3 | 55°C (@70% 10 min Constant) |
| 1800 | 80 | 24.6 | 10.0 | 5311 | 1565 | 0.29 | 246.0 | 6.4 | 61°C (Maximum) |
| 1900 | 90 | 24.5 | 13.2 | 5747 | 1882 | 0.34 | 323.4 | 5.8 | 61°C (Maximum) |
| 1950 | 95 | 24.5 | 13.9 | 5809 | 1934 | 0.35 | 340.6 | 5.7 | 61°C (Maximum) |
| 2000 | 100 | 24.5 | 14.0 | 5785 | 1956 | 0.36 | 343.0 | 5.7 | 61°C (Maximum) |
Performance Summary:
- Best Efficiency: TM 16.2×5.3 @ 30% throttle (13.7 g/W, 240g thrust)
- Maximum Thrust: TM 16.2×5.3 @ 100% throttle (1,956g thrust, 5.7 g/W)
- Balanced Performance: TM 14×4.8 @ 70% throttle (1,044g thrust, 7.5 g/W)
- Operating Temperature: 52-61°C depending on load
- Recommended Continuous: 70% throttle max for sustained flight
Recommended Applications - 400 KV
- Balanced performance racing
- General purpose aerial photography
- Standard payload missions
- All-around performance
440 KV - Specifications
Motor Specifications:
- KV Rating: 440 RPM/V
- Kt (Motor Torque Constant): 0.0329 Nm/A @ 5100 RPM
- Weight: 67g ± 2g
- Max Thrust: 2,206g (with TM 16.2×5.3 prop)
- Voltage Range: 22V – 25V (6S LiPo)
- Io (24@V): 0.6A (24@V)
- Max Continuous Current: 12A (180s)
- Max Continuous Power: 280W (180s)
- Power Density: 3.14 W/g (Rated), 5.96 W/g (Maximum)
- Motor Diameter: Ø 44.6 mm
- Motor Length: 20 mm
- Stick Out Shaft Diameter: Ø 4 mm
- Stator Poles: 18S
- Magnetic Poles: 24P
- Bearings: Dual 619/4-2RS Sealed
- Inductance per phase (Winding Inductance): 0.09 (≈0.03) mH
- Resistance per phase (Rph): 0.16 (≈0.03) Ω
- Motor Mount Pattern @ 90 deg: 4 × M3 @ PCD Ø 25 mm, depth: 2.5 mm
- Propeller Mount Pattern: 4 × M3 @ PCD Ø 12 mm, depth: 3 mm
- Compatible Propeller Size: 13" to 16"
Test Data - 440 KV
TM 14 x 4.8 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 10-08-2024
- Environmental Temp: 29°C
- Humidity: 60%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.2 | 0.6 | 2531 | 186 | 0.03 | 15.1 | 12.3 | 52°C (@70% 10 min Constant) |
| 1400 | 40 | 25.1 | 1.3 | 3398 | 346 | 0.06 | 32.6 | 10.6 | 52°C (@70% 10 min Constant) |
| 1500 | 50 | 25.1 | 2.6 | 4361 | 616 | 0.11 | 65.3 | 9.4 | 52°C (@70% 10 min Constant) |
| 1600 | 60 | 25.0 | 4.4 | 5135 | 885 | 0.15 | 110.0 | 8.0 | 52°C (@70% 10 min Constant) |
| 1700 | 70 | 25.0 | 6.2 | 5796 | 1120 | 0.19 | 155.0 | 7.2 | 52°C (@70% 10 min Constant) |
| 1800 | 80 | 24.9 | 8.7 | 6452 | 1439 | 0.24 | 216.6 | 6.6 | 58°C (Maximum) |
| 1900 | 90 | 24.8 | 11.7 | 7091 | 1742 | 0.29 | 290.2 | 6.0 | 58°C (Maximum) |
| 1950 | 95 | 24.8 | 12.4 | 7173 | 1854 | 0.3 | 307.5 | 6.0 | 58°C (Maximum) |
| 2000 | 100 | 24.8 | 12.3 | 7200 | 1798 | 0.3 | 305.0 | 5.9 | 58°C (Maximum) |
SS 15 x 5.5 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 04-04-2025
- Environmental Temp: 33°C
- Humidity: 57%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.1 | 0.7 | 2289 | 248 | 0.05 | 17.6 | 14.1 | 65°C (@70% 10 min Constant) |
| 1400 | 40 | 25.0 | 1.7 | 3083 | 462 | 0.09 | 42.5 | 10.9 | 65°C (@70% 10 min Constant) |
| 1500 | 50 | 24.9 | 3.5 | 3971 | 765 | 0.14 | 87.2 | 8.8 | 65°C (@70% 10 min Constant) |
| 1600 | 60 | 24.8 | 5.6 | 4658 | 1037 | 0.19 | 138.9 | 7.5 | 65°C (@70% 10 min Constant) |
| 1700 | 70 | 24.7 | 8.3 | 5231 | 1342 | 0.25 | 205.0 | 6.5 | 65°C (@70% 10 min Constant) |
| 1800 | 80 | 24.6 | 11.5 | 5736 | 1642 | 0.31 | 282.9 | 5.8 | 69°C (Maximum) |
| 1900 | 90 | 24.4 | 15.4 | 6239 | 1962 | 0.37 | 375.8 | 5.2 | 69°C (Maximum) |
| 1950 | 95 | 24.4 | 16.0 | 6316 | 1998 | 0.37 | 390.4 | 5.1 | 69°C (Maximum) |
| 2000 | 100 | 24.4 | 16.0 | 6312 | 1992 | 0.37 | 390.4 | 5.1 | 69°C (Maximum) |
TM 16.2 x 5.3 CF_FX
Test Conditions:
- ESC: HW 40A 6S
- Battery: TB - 22000mAh 6S
- Test Date: 10-08-2024
- Environmental Temp: 29°C
- Humidity: 60%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 25.0 | 0.8 | 2268 | 275 | 0.06 | 20.0 | 13.8 | 61°C (@70% 10 min Constant) |
| 1400 | 40 | 25.0 | 1.8 | 3033 | 503 | 0.1 | 45.0 | 11.2 | 61°C (@70% 10 min Constant) |
| 1500 | 50 | 24.9 | 3.6 | 3911 | 866 | 0.16 | 89.6 | 9.7 | 61°C (@70% 10 min Constant) |
| 1600 | 60 | 24.8 | 5.9 | 4618 | 1192 | 0.22 | 146.3 | 8.1 | 61°C (@70% 10 min Constant) |
| 1700 | 70 | 24.8 | 8.5 | 5181 | 1522 | 0.28 | 210.8 | 7.2 | 61°C (@70% 10 min Constant) |
| 1800 | 80 | 24.6 | 11.7 | 5677 | 1818 | 0.34 | 287.8 | 6.3 | 66°C (Maximum) |
| 1900 | 90 | 24.5 | 15.5 | 6204 | 2139 | 0.39 | 379.8 | 5.6 | 66°C (Maximum) |
| 1950 | 95 | 24.5 | 16.5 | 6240 | 2203 | 0.42 | 404.3 | 5.4 | 66°C (Maximum) |
| 2000 | 100 | 24.5 | 16.3 | 6284 | 2206 | 0.4 | 399.4 | 5.5 | 66°C (Maximum) |
Performance Summary:
- Best Efficiency: TM 16.2×5.3 @ 30% throttle (13.8 g/W, 275g thrust)
- Maximum Thrust: TM 16.2×5.3 @ 100% throttle (2,206g thrust, 5.5 g/W)
- Balanced Performance: TM 14×4.8 @ 70% throttle (1,120g thrust, 7.2 g/W)
- Operating Temperature: 52-69°C depending on load
- Recommended Continuous: 70% throttle max for sustained flight
Recommended Applications - 440 KV
- High-performance racing
- Maximum thrust requirements
- Aggressive flight profiles
- Quick response needed
Common Resources
2D CAD Drawing
The 2D CAD drawing is identical for all KV variants (380KV, 400KV, 440KV) as they share the same physical dimensions and mounting pattern.
Drawing Specifications:
- Motor Mount Pattern @ 90°: 4 × M3 @ PCD Ø 25 mm (0.98"), depth: 2.5 mm
- Propeller Mount Pattern: 4 × M3 @ PCD Ø 12 mm (0.47"), depth: 3 mm
- Motor Diameter: Ø 44.6 mm (1.76")
- Motor Length: 20 mm (0.79")
- Shaft Diameter: Ø 4 mm
- Stick Out Shaft Diameter: Ø 3.1 mm (0.12")
- Shaft Length: 6.8 mm (0.25")
Note: All dimensions in millimeters (mm). Specifications and drawings may be revised without notice.
Recommended ESC & Propeller
Compatible ESCs
Recommended Configurations:
| ESC Rating | Application | Features |
|---|---|---|
| 30-40A | General purpose | Standard BLHeli_S/32 |
| 40-60A | High performance | Advanced telemetry |
| 60A+ | Heavy lift | Enhanced cooling |
ESC Requirements:
- Continuous rating: 30A minimum (40A recommended)
- Voltage support: 6S (22.2V) capable
- Protocol: DShot300/600 or higher recommended
- Features: Active braking, telemetry support
For detailed ESC specifications and compatibility, see ESC Overview.
Compatible Propellers
Tested Propeller Configurations:
| Propeller Size | Pitch | Application | Performance |
|---|---|---|---|
| 13×4.4 | Low | Efficiency | Good |
| 14×4.8 | Medium | Balanced | Excellent |
| 15×5.1 | Medium | Performance | Very Good |
| 16.2×5.4 | High | Maximum thrust | Good |
Propeller Selection Guidelines:
- Start with 14×4.8 for balanced performance
- Use 13×4.4 for maximum efficiency/flight time
- Use 16.2×5.4 for maximum thrust output
- Always balance propellers before installation
For more propeller options, see Propeller Overview.
System Integration
Complete System Recommendations:
-
Efficiency Build (Long flight time)
- Motor: 4006 SL 380KV
- Propeller: 13×4.4
- ESC: 30-40A
- Battery: 6S 5000mAh
- Expected Performance: 1,200g thrust, 180+ seconds runtime
-
Balanced Build (General purpose)
- Motor: 4006 SL 400KV
- Propeller: 14×4.8
- ESC: 40A
- Battery: 6S 4000mAh
- Expected Performance: 1,600g thrust, 150-180 seconds runtime
-
Performance Build (Maximum thrust)
- Motor: 4006 SL 440KV
- Propeller: 16.2×5.4
- ESC: 60A
- Battery: 6S 3000mAh
- Expected Performance: 2,206g thrust, 120 seconds runtime
Maintenance and Inspection
Pre-Flight Checks
Before every flight:
- Visual inspection for physical damage
- Propeller balance and condition check
- Mounting bolt security verification
- Wire routing inspection (no contact with moving parts)
- Brief spin test (listen for unusual sounds)
Periodic Maintenance Schedule
Every 10 Flight Hours:
- Re-torque mounting bolts to specification
- Inspect threadlocker integrity
- Check bearing smoothness (manual rotation)
- Clean motor exterior with compressed air
- Inspect propeller for wear or damage
Every 50 Flight Hours:
- Detailed bearing inspection
- Shaft runout measurement
- Electrical connection integrity check
- Replace propeller if worn
- Document maintenance in flight log
Signs Requiring Immediate Inspection:
- Unusual vibration during operation
- Increased motor temperature (>70°C)
- Grinding or scraping sounds
- Reduced thrust output
- Propeller wobble
Bearing Replacement
Bearing Specifications:
- Type: Dual 619/4-2RS Sealed
- Service Interval: 100-150 flight hours (typical)
- Replacement Procedure: Contact technical support or refer to motor maintenance procedures
Signs of Bearing Wear:
- Grinding or rattling sounds
- Increased vibration
- Shaft play or wobble
- Difficulty rotating by hand
- Increased operating temperature
Comparison with Similar Motors
SL Series Comparison
| Feature | 4006 SL | 8008 SL | 8015 SL |
|---|---|---|---|
| Weight | 67 g | ~350 g | 420 g |
| Max Thrust | 1,935g (380KV) / 1,956g (400KV) / 2,206g (440KV) | ~10 kg | 13.5 kg |
| Voltage | 24V (6S) | 48V (12S) | 48V (12S) |
| Prop Size | 13–16" | 24–28" | up to 30" |
| Application | Small UAVs | Medium UAVs | Large UAVs |
| Mounting | M3 bolts | M4 bolts | M4 bolts |
PRO Series Alternatives
| Feature | 4006 SL | 4015 PRO |
|---|---|---|
| Weight | 67 g | 250 g |
| Max Thrust | 1,935g (380KV) / 1,956g (400KV) / 2,206g (440KV) | ~3.2 kg |
| Voltage | 24V (6S) | 24–48V (6S-12S) |
| Prop Size | 13–16" | up to 16" |
| Build | Lightweight | Heavy-duty |
| Power Density | 4.73 W/g (380KV) / 5.11 W/g (400KV) / 5.96 W/g (440KV) | ~4.0 W/g |
Selection Guide:
- 4006 SL: Best for weight-critical applications, racing, compact UAVs
- 4015 PRO: Higher thrust capacity, dual voltage support
- 8008/8015 SL: Step up for medium to large UAVs
See Motor Overview for complete specifications.
Safety Notes
⚠️ Important Safety Information
Operational Safety:
- Never run motor without propeller attached (causes unbalanced load)
- Ensure proper cooling during extended operation
- Monitor motor temperature - do not exceed 70°C for sustained periods
- Inspect motor bearings regularly for wear
- Replace damaged propellers immediately
Electrical Safety:
- Verify correct ESC wiring before first power-up
- Use only 6S LiPo batteries (22-25V range)
- Do not exceed maximum continuous current (9A for 380KV, 10A for 400KV, 12A for 440KV @ 180s)
- Ensure proper battery discharge rates (C-rating)
Installation Safety:
- Follow torque specifications exactly
- Never exceed maximum bolt length (3mm)
- Verify rotation direction before propeller installation
- Maintain minimum 10mm clearance to frame
Emergency Procedures:
- If motor overheats (>70°C), land immediately
- If unusual vibration occurs, stop operation
- If motor makes grinding sounds, inspect bearings
- Always have emergency landing plan
Technical Support & Resources
Contact Information
- Technical Support: support@vectortechnics.com
- Phone Support: +918977744819 (Mon-Fri, 9AM-5PM IST)
Related Documentation
- Motor Installation Guide
- ESC Configuration Guide
- Propeller Selection Guide
- Motor Overview
- SuperLight Series
Next Steps:
- Review Installation Guide for mounting procedures
- Select compatible ESC from tested configurations
- Choose optimal propeller based on application
- Review Motor Overview for system integration
Document Information:
- Revision: 2.0
- Last Updated: February 2026
- Product Codes: VT-4006SL-380KV, VT-4006SL-400KV, VT-4006SL-440KV
- Document ID: VT-DOC-4006SL-01
Note: Specifications and drawings may be revised without notice. Vector Technics assumes no liability for reliance on unverified data. All dimensions in millimeters (mm).

