The 5208 motor is the ultimate embodiment of the “ultra-large scale and ultra-high efficiency” design. It does not aim for the highest power density by making the stack thickness very high (like the 5215), but rather, on this huge 52mm platform, it combines efficiency, torque and power perfectly through the optimal electromagnetic design and ultra-low KV value. It is specifically designed for “national / enterprise-level” projects, which include: super heavy logistics drones, large special operation platforms, next-generation long-endurance hybrid power verification aircraft, etc.
It offers an unprecedented physical platform (52mm in diameter), allowing for the realization of near-theoretical-limit load-carrying and flight-time efficiency through electromagnetic and aerodynamic design. The performance level it represents makes the previously blueprint-only super-heavy unmanned aerial vehicle applications an achievable engineering goal. The full-system high-voltage, high-reliability and high-integration requirements it demands have driven the progress of the entire high-end unmanned aerial vehicle (UAV) industrial chain.
| Specification |
| Weight: 197.0g (including the cables) |
| Motor Size: 60 x 28mm |
| Shaft Diameter: 5.0mm |
| Motor Mount: 19*25mm(M3*4) |
| Configuration: 24N22P |
| Motor Cable: 18#AWG 220mm |
| ST5208-340KV Motor |
| Max thrust：3750g |
| Volts：24.0V(6S) |
| Suggested ESC: 40A~50A |
| Maximum Power:734.4W |
| Suggested Prop: CF1555TM, CF1755TM, CF1855TM Inch prop |
| Item No. | Prop | Throttle | Voltages | Load Current | Power | Thrust | Efficiency | Temperature |
| （inch） | （%） | （V） | （A） | (W) | (g) | (g/W) | (in full throttle load 1min) | |
| ST5208 340KV | CF1555TM | 50% | 24 | 3.7 | 88.8 | 910 | 10.25 | 42℃ |
| 54% | 24 | 5 | 120 | 1120 | 9.33 | |||
| 57% | 24 | 6 | 144 | 1290 | 8.96 | |||
| 62% | 24 | 8 | 192 | 1540 | 8.02 | |||
| 66% | 24 | 10 | 240 | 1820 | 7.58 | |||
| 70% | 24 | 12 | 288 | 2070 | 7.19 | |||
| 74% | 24 | 14 | 336 | 2280 | 6.79 | |||
| 78% | 24 | 16 | 384 | 2470 | 6.43 | |||
| 81% | 24 | 18 | 432 | 2630 | 6.09 | |||
| 100% | 24 | 20 | 480 | 2880 | 6 | |||
| ST5208 340KV | CF1755TM | 50% | 24 | 5.3 | 127.2 | 1220 | 9.59 | 65℃ |
| 52% | 24 | 6 | 144 | 1320 | 9.17 | |||
| 56% | 24 | 8 | 192 | 1620 | 8.44 | |||
| 59% | 24 | 10 | 240 | 1900 | 7.92 | |||
| 62% | 24 | 12 | 288 | 2140 | 7.43 | |||
| 65% | 24 | 14 | 336 | 2340 | 6.96 | |||
| 68% | 24 | 16 | 384 | 2610 | 6.8 | |||
| 71% | 24 | 18 | 432 | 2750 | 6.37 | |||
| 75% | 24 | 20 | 480 | 2930 | 6.1 | |||
| 78% | 24 | 22 | 528 | 3120 | 5.91 | |||
| 80% | 24 | 24 | 576 | 3290 | 5.71 | |||
| 82% | 24 | 26 | 624 | 3440 | 5.51 | |||
| 100% | 24 | 27.8 | 667.2 | 3560 | 5.34 | |||
| ST5208 340KV | CF1855TM | 50% | 24 | 6.6 | 158.4 | 1480 | 9.34 | 78℃ |
| 52% | 24 | 8 | 192 | 1710 | 8.91 | |||
| 55% | 24 | 10 | 240 | 1970 | 8.21 | |||
| 59% | 24 | 12 | 288 | 2220 | 7.71 | |||
| 61% | 24 | 14 | 336 | 2480 | 7.38 | |||
| 64% | 24 | 16 | 384 | 2720 | 7.08 | |||
| 66% | 24 | 18 | 432 | 2880 | 6.67 | |||
| 69% | 24 | 20 | 480 | 3010 | 6.27 | |||
| 71% | 24 | 22 | 528 | 3220 | 6.1 | |||
| 74% | 24 | 24 | 576 | 3380 | 5.87 | |||
| 77% | 24 | 26 | 624 | 3570 | 5.72 | |||
| 80% | 24 | 28 | 672 | 3650 | 5.43 | |||
| 100% | 24 | 30.6 | 734.4 | 3750 | 5.11 | |||
| Notes: The test condition oftemperature is motor surface temperature in 100% throttle while the motor run 15 s.environment temperature 26℃ | ||||||||
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