Features 1、Compatible for 400-450 aircraft or RC helicopter, widely applications. 2、Output, continuous 30A, burst 40A up to 10 seconds. High efficiency and reliable. 3、Input voltage: 2-3cells lithium battery or 5-9 cells NiCd/NIMh battery. 4、BEC: 2A / 5V (Linear mode). Maximum speed 210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM. 5、With T plug and 3.5mm banana connectors, easy and convenient for installation. Specification Condition: 100% Brand New Item Type: RC Plane Parts Material: ABS + Electronic Components Type: 1400KV Motor + 30A ESC + 9G Servo + 8060 Propeller SG90A 9G Servo: Size: Approx. 21.5 x 11.8 x 22.7mm / 0.8 x 0.5 x 0.9in Weight: 9 g / 0.3 oz(approx.) No-Load Speed: 0.12 seconds / 60 degrees (4.8V) Blocking Torque: 1.5-1.7kg/cm (4.8V-6V) Working Temperature: -30 ~ + 60 ℃ Dead Zone Setting: 5 microseconds Working Voltage: 4.8V-6V A2212 1400KV Motor: KV: 1400 Maximum Efficiency: 80% Maximum Efficiency Current: 4-10A (> 75％ Current Capacity: 12A / 60s No Load Current: 10V: 0.5A Number of Batteries: 2-3 lithium polymer batteries Motor Size: Approx. 27.5 x 30mm / 1.1 x 1.2in Shaft Diameter: Approx. 3.17mm / 0.1in Weight: 47 g / 1.7 oz(approx.) Package List 2 x 9G SG90 Servo 1 x A2212 KV1400 Brushless Motor 2 x 8060 Propeller 2 x Propeller Gasket 1 x 30A ESC