Specification: Item Type: RC Plane Parts Material: ABS + Electronic Components Type: 1250KV Motor + 40A 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 2217 Motor: Size: Approx. 27.8 x 32mm / 1.1 x 1.3in Weight: 68 g / 2.4 oz(approx.) Shaft Diameter: Approx. 4mm / 0.2in Accessories: 4.0mm pillar adapter, motor mounting seats, screws Props Recommended: 2217-1100kV: 11 or 10 inch items, e.g. 1155, 1070, 1060, etc. 2217-1250kV: 9-inch prop, e.g. 9050, 9045, 9060, etc. 2217-2300KV: 6 inch item, e.g. 6040, etc. Specifications: Types: Long, short Current: 40A Output Capacity: Continuous current 40A, short current 55A (not less than 10 seconds) Power Input: 2-4 lithium batteries (not included) BEC Output: 5V@3a (Linear voltage regulator mode - linear mode) Maximum Speed: 210,000 RPM for 2-pole motor, 7,000 RPM for 6-pole motor, and 35,000 RPM for 12-pole motor Size: Approx. 68 x 25 x 8mm / 2.7 x 1 x 0.3in Package List: 2 x 9G SG90 Servo 1 x A2212 KV1250 Brushless Motor 2 x 8060 Propeller 2 x Propeller Gasket   1 x 40A ESC