Product overview
The T-MOTOR AT2321 Long Shaft is a brushless propulsion component for 800-2000g airplanes, sailplanes and fixed-wing aircraft, including trainer and glider applications. Its physical architecture combines a linear shaft, C-Clip shaft lock and shaft collar with hand-made windings and high-temperature enameled wire incorporating a special insulating layer. Both KV versions occupy a Φ28.8*56mm motor envelope, use 4mm input and output shaft diameters, and provide 100mm leads in 22#AWG. Their shared motor configuration is 12N14P.
The supplied configuration consists of one AT2321 motor and one hardware pack. Integration recommendations pair it with a T-MOTOR T12*6 propeller and AT40A/55A ESC, with rated battery support of 2-4S LiPo. The KV950 weighs 93g including cable and has 180-second ratings of 30A peak current and 450W maximum power; the KV1250 weighs 94g and has corresponding ratings of 45A and 700W. The general product description also gives 2.1kg maximum thrust and 800W maximum power, without assigning those figures to either KV version.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | T-MOTOR AT2321 Long Shaft 3D Trainer Glider motor KV1250/KV950 |
| Product type and application | Long-shaft brushless motor for fixed-wing aircraft |
| Intended aircraft flying weight | 800-2000g |
| Maximum thrust | 2.1kg |
| General maximum power | 800w2-4S LiPo support stated in the general product description. |
| Recommended propeller and ESCs | T-MOTOR T12*6 propeller; AT40A/55A ESC |
| Winding construction | High-temperature enameled wire with a special insulating layer |
| Shaft architecture | Linear shaft design with C-Clip shaft lock and shaft collar |
| Winding manufacture | Hand-made winding |
| Supplied configuration | 1x T-MOTOR AT2321 motor; 1x hardware pack |
| Packaging weight and size | 165g; 105*65*50mmPackaged product. |
| Test item: KV950 | Long Shaft KV950 |
| Weight: KV950 | 93gLong Shaft KV950; includes cable. |
| Motor dimensions | Φ28.8*56mmLong Shaft KV950 and Long Shaft KV1250. |
| Internal resistance: KV950 | 65mΩLong Shaft KV950. |
| Lead | 22#AWG 100mmLong Shaft KV950 and Long Shaft KV1250. |
| Motor configuration | 12N14PLong Shaft KV950 and Long Shaft KV1250. |
| Shaft diameter | IN: 4mm; OUT: 4mmLong Shaft KV950 and Long Shaft KV1250. |
| Rated voltage | 2-4SLong Shaft KV950 and Long Shaft KV1250; LiPo battery. |
| Idle current: KV950 | 1.2ALong Shaft KV950; 10V. |
| Peak current: KV950 | 30ALong Shaft KV950; 180s. |
| Maximum power: KV950 | 450WLong Shaft KV950; 180S. |
| Specification-table recommendation | /Long Shaft KV950 and Long Shaft KV1250. |
| Test item: KV1250 | Long Shaft KV1250 |
| Weight: KV1250 | 94gLong Shaft KV1250; includes cable. |
| Internal resistance: KV1250 | 38mΩLong Shaft KV1250. |
| Idle current: KV1250 | 1.8ALong Shaft KV1250; 10V. |
| Peak current: KV1250 | 45ALong Shaft KV1250; 180s. |
| Maximum power: KV1250 | 700WLong Shaft KV1250; 180S. |
| Motor temperature measurement | Motor surface temperature100% throttle running for 3mins. |
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