Product overview
The HOBBYWING RTF 4218 350KV is a rotor motor specified for an 8S LiPo battery, with a rated output of 560W and a stated maximum thrust of 7.3kg. Recommended configurations pair it with an HQ13x10x3, HQ15x7x3 or HQ15x10x3 propeller and either an RTF 80A 4in1 8S Lite AT or RTF 100A 4in1 8S Lite AT electronic speed controller. These combinations define the recommended propulsion hardware for the motor.
The motor measures 50mm in diameter and 39.8mm in height, with a 42mm-diameter, 18mm-high stator and a 12-slot, 14-pole configuration. It weighs 287g including its wires, which are specified as 14AWG and 500mm long. Mechanical details include a 6mm shaft diameter, a 25mm shaft length, 626ZZ bearings and four M4 mounting holes on a 30mm mounting circle. Phase-to-phase resistance is specified as 46 milliohms, while no-load current is 1.8A.
Maximum current is specified as 66A for 33 seconds in a non-enclosed environment at an ambient temperature of 25°C or below. Maximum power is separately specified as 2101W for 33 seconds, making it a time-limited figure distinct from the 560W rated output. Construction specifications include silicon steel stator sheets with a coating rated for 180°C resistance and Class C enamelled wire rated for 220°C resistance. The winding insulation specification calls for a 500V AC withstand test.
Specifications
| Specification | Value & conditions |
|---|---|
| Model and component type | RTF 4218 350KV rotor motorModel identified in the recommended application combinations. |
| Rated battery | 8S LiPoSpecified for the RTF 4218 350KV. |
| Recommended combinations | HQ13x10x3, HQ15x7x3 or HQ15x10x3 propeller; RTF 80A 4in1 8S Lite AT or RTF 100A 4in1 8S Lite AT ESCRecommended application combinations for the RTF 4218 350KV with an 8S LiPo battery. |
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