VCI Spark 1805.4 3850Kv is a lightweight motor suitable for 3" drones with a 4S battery. It weighs only 16.8g, including 100mm 24AWG wires. The 18x5.4mm stator in a 9N12P configuration is complemented by rounded N52SH magnets, and the shaft has a diameter of 1.5mm.
At 16V with a GF 3052-3 propeller, it delivers up to 612g of thrust at a current draw of 28.2A. The motor is mounted to the frame with four M2 screws on a 12mm pattern.
