Product overview
The Scorpion HKII-4235-520Kv (Nick Maxwell Edition) is a propulsion motor designed for narrow frame 700 class helicopters. Its physical package combines a 52.3 mm outside diameter with a 61.90 mm body length, providing concrete dimensions for assessing installation space. The shaft measures 5.98 mm in diameter, with an overall shaft length of 110.0 mm. Internally, the motor uses a 42 mm diameter, 35 mm thick stator with 12 arms and 10 poles, plus a 5+4 Turn Delta winding made with 1-Strand 1.5 mm wire.
Electrical integration centers on a 520KV RPM/Volt rating and a maximum 12s LiPo configuration. Continuous limits are 100 Amps and 4450 Watts; the higher peak limits of 215A and 9600 Watts each apply for only 2 seconds. Motor timing is 5deg to 15 deg, and drive frequency is 8kHz. The supplied configuration contains one motor bearing Nick Maxwell’s engraved signature. Motor weight is 519 Grams (18.18 oz), while weight including packaging is 680g.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity | Scorpion HKII-4235-520Kv (Nick Maxwell Edition) |
| Intended application | Motor for narrow frame 700 class helicopters |
| Signature marking | Nick Maxwell signature engraved on the motor |
| Stator Diameter | 42 mm (1.65 in) |
| Stator Thickness | 35 mm (1.38 in) |
| No. of Stator Arms | 12 |
| No. of Stator Poles | 10 |
| Motor Wind | 5+4 Turn Delta |
| Motor Wire | 1-Strand 1.5 mm |
| Motor Kv | 520KV RPM/Volt |
| No-Load Current (Io/10V) | 2.3 AmpsAt 10V. |
| Motor Resistance (RM) | 0.012 Ohms |
| Max Continuous Current | 100 AmpsContinuous operation. |
| Max Continuous Power | 4450 WattsContinuous operation. |
| Weight | 519 Grams (18.18 oz) |
| Outside Diameter | 52.3 mm (2.06 in) |
| Shaft Diameter | 5.98 mm (0.24 in) |
| Body Length | 61.90 mm (2.45 in) |
| Overall Shaft Length | 110.0 mm (4.33 in) |
| Max Lipo Cell | 12sLiPo battery configuration. |
| Max Peak Current | 215A (2 seconds)2 seconds. |
| Max Peak Power | 9600 Watts (2 seconds)2 seconds. |
| Motor Timing | 5deg to 15 deg |
| Drive Frequency | 8kHz |
| Supplied configuration | 1 x Scorpion HKII-4235-520KV MotorIncluded in the box. |
| Packaged weight | 680gIncluding packaging. |
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