Product overview
The HOBBYWING RTF 4720 is a propulsion motor for FPV aircraft, with separate 300KV and 360KV configurations. Its physical architecture combines an outer rotor support, an 18-slot, 16-pole arrangement and arc-shaped magnets. The support incorporates cooling features that carry heat away from the coils during flight, together with a toothed interface intended to prevent propeller slipping. Internally, 0.2mm silicon steel sheets and multi-strand enameled wire support the winding design; the wire carries a 220°C temperature rating.
Mechanical integration uses a Φ6mm output shaft, a 22mm output shaft dimension, Φ12mm*2-M3 propeller clamp holes and Φ30mm-4*M4 motor mounting holes. Both variants have 500mm, 14AWG leads, with weights including wires of 347g for 300KV and 360g for 360KV. Electrical selection differs substantially: 300KV is rated for LiPo-12S, while 360KV is rated for LiPo-8S. Maximum current is limited to specified durations in a non-enclosed environment at ambient temperature no higher than 25°C. Propellers and ESCs are recommended pairings.
Specifications
| Specification | Value & conditions |
|---|---|
| KV options | 300KV and 360KVOptions listed for the RTF 4720. |
| Model | HOBBYWING RTF 4720 |
| Propeller mount cooling | Self-cooling design for rapid coil heat dissipationDuring flight |
| Propeller mount grip | Anti-slip tooth structure to prevent propeller slippage and rotation loss |
| Silicon steel sheet thickness | 0.2mm |
| Enameled wire temperature rating | 220°C |
| Winding design | Multi-strand enameled wire |
| Slot fill rate increase | Approximately more than 5%With multi-strand enameled wire winding |
| Operating temperature benefit | Lower operating temperaturesAt identical power output; with multi-strand enameled wire winding |
| Magnet design | Strong arc-shaped magnets |
| Magnetic field benefit | Significantly increased magnetic flux density and magnetic field intensityWith strong arc-shaped magnets |
| Product type | HOBBYWING RTF 4720 FPV motor |
| Motor variants | RTF 4720 300KV; RTF 4720 360KV |
| Motor dimensions | Φ55.3*45.6Both motor variants. |
| Slots and poles | 18 slots, 16 polesBoth motor variants. |
| Stator dimensions | Φ46.6*20Both motor variants. |
| Bearing model | 688ZZBoth motor variants. |
| Stator construction | High-quality silicon steel sheets with coating resistant to 180°CBoth motor variants. |
| Output shaft diameter | Φ6mmBoth motor variants. |
| Enameled wire class | Class C; resistant to 220°CBoth motor variants. |
| Output shaft dimension | 22mmBoth motor variants. |
| Propeller clamp mounting holes | Φ12mm*2-M3Both motor variants. |
| Coil insulation test | 500V AC withstand-voltage testBoth motor variants. |
| Motor mounting holes | Φ30mm-4*M4Both motor variants. |
| Rated battery voltage | LiPo-12S / LiPo-8S300KV / 360KV variants, respectively. |
| No-load current | 300KV: 2.66A/44.4V; 360KV: 3.6A/32V300KV at 44.4V; 360KV at 32V. |
| Rated output power | 960W / 800W300KV / 360KV variants, respectively. |
| Maximum current | 300KV: 68A/9s; 360KV: 86A/45sNon-enclosed environment at ambient temperature ≤25°C; 300KV for 9s and 360KV for 45s. |
| Maximum power | 300KV: 2195W/9s; 360KV: 2749W/45s300KV for 9s; 360KV for 45s. |
| Maximum thrust | 8.2kg / 8.7kg300KV / 360KV variants, respectively. |
| Phase-to-phase resistance | 53.92mΩ / 47mΩ300KV / 360KV variants, respectively. |
| Lead wire gauge | 14AWGBoth motor variants. |
| Lead wire length | 500mmBoth motor variants. |
| Motor weight | 347g / 360gIncluding wires; 300KV / 360KV variants, respectively. |
| Recommended propellers and ESC | HQ15x10x3 or HQ16x8x3 propellers; SKYWALKER 160A HV 14S OPTO V2 ESC300KV variant. |
| Recommended propellers and ESC | HQ15x7x3 or HQ15x10x3 propellers; RTF 100A 4in1 8S Lite AT ESC360KV variant. |
| Rotor support cooling | Outer rotor support with self-cooling structure to remove coil heat during flightDuring flight. |
| Propeller grip structure | Toothed anti-slip support design to prevent propeller slipping and free spinning |
| Magnetic and winding construction | 0.2mm silicon steel sheets, 220°C enameled wire, multi-strand windings and strong arc-shaped magnets |
| Winding benefits | Slot fill increases by more than 5%; lower motor temperature at the same powerWith multi-strand windings; temperature comparison at the same power. |
Request a quote for HOBBYWING RTF 4720
Send your application, destination country and expected quantity to the ChinaDrone team. We can discuss product selection, configuration and sourcing from China.
Submit your procurement requirements ↗No account needed. A model number is optional. Your enquiry is handled by ChinaDrone.
