Product overview
The FlashHobby H450 Helicopter Motor is a helicopter propulsion component available in 1850KV and 3800KV configurations. Its 9N/6P architecture incorporates a stator measuring 22 mm in diameter and 22 mm in height. The motor measures 29.4 × 38.5 mm and weighs 94 g including cables. Mechanical integration uses a 3.5 mm shaft, with an overall shaft length of 55.5 mm, and a 3.5 mm male electrical connector. Mounting specifications give 16 × 19 mm (M3 × 4); the drawing separately specifies M2.5/M4 bolt threads, leaving a discrepancy in the mounting details.
Electrical requirements depend on the selected configuration. The 1850KV motor supports 2–6S LiPo batteries and has a suggested 45 A ESC, with maximum continuous ratings of 30 A and 720 W. Its peak ratings are 45 A and 1080 W for two seconds. The 3800KV motor supports 2–4S LiPo batteries and has a suggested 65 A ESC, with maximum continuous ratings of 40 A and 650 W; its two-second peak ratings are 65 A and 950 W. Both configurations specify 5-degree motor timing and an 8 kHz drive frequency.
Specifications
| Specification | Value & conditions |
|---|---|
| Weight | 94 gIncludes the cables. |
| Motor size | 29.4 × 38.5 mm |
| Stator diameter | 22 mm |
| Stator height | 22 mm |
| Shaft diameter | 3.5 mm |
| Motor mount | 16 × 19 mm (M3 × 4) |
| Motor configuration | 9N/6P |
| Motor dimensions | 29.4 × 38.5 mm |
| Connector | 3.5 mm male connector |
| Overall shaft length | 55.5 mm |
| Bolt thread | M2.5/M4 |
| Motor timing | 5 degrees |
| Drive frequency | 8 kHz |
| Motor KV | 1850 RPM/V1850KV configuration. |
| Maximum continuous current | 30 A1850KV configuration. |
| Maximum peak power | 1080 W1850KV configuration; 2-second peak. |
| Idle current | 2.5 A1850KV configuration; at 10 V. |
| Motor resistance | 0.0382 Ω1850KV configuration. |
| Suggested ESC | 45 A1850KV configuration. |
| LiPo cell count | 2–6S1850KV configuration. |
| Maximum continuous power | 720 W1850KV configuration. |
| Maximum peak current | 45 A1850KV configuration; 2-second peak. |
| Motor KV | 3800 RPM/V3800KV configuration. |
| Maximum continuous current | 40 A3800KV configuration. |
| Maximum peak power | 950 W3800KV configuration; 2-second peak. |
| Idle current | 3.8 A3800KV configuration; at 10 V. |
| Motor resistance | 0.0182 Ω3800KV configuration. |
| Suggested ESC | 65 A3800KV configuration. |
| LiPo cell count | 2–4S3800KV configuration. |
| Maximum continuous power | 650 W3800KV configuration. |
| Maximum peak current | 65 A3800KV configuration; 2-second peak. |
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