Description: The motor kit has strong power, high torsion and high-speed operation, which is suitable for surfing boat underwater propulsion. Recommended for electric boat prototypes (airfoil, jet surfing, etc.) The waterproof level reaches IP68, and it can be used underwater for a long time, effectively protecting the motor from seawater corrosion. The solder joints of the motor leads are potted inside the motor, which can meet the 200m suppression test. There is connecting ring at the upper and lower positions of the magnet, which can be used to lock the magnet and prevent the magnet from falling. The bearing is made of stainless steel, resistant to impact and corrosion, and effectively prolongs its service life. Specification: Material: stainless steel + copper Size: Approx. 66 x 112mm / 2.6 x 4.4inch Motor Stator Slot: 12 Shaft Diameter: approx. 10mm / 0.4inch Number of Motor Poles: 8 Motor KV:216 Motor Wire: 12AWG Wire Maximum Voltage: 14S Maximum Current: 70A No-Load Current: 2.2A 10V Waterproof Rating: IP68 Weight:1.4kg The Thrust Under The Conditions Of Reaching This Voltage And Current is as follows: 48.5v 2.7A 5kg 48.5v 8.2A 10kg 48.5v 18.2A 15kg 48.5v 20A 17kg 48.5v 25A 19kg 48.5v 30A 21kg 48.5v 35A 23kg 48.5v 40A 24kg 48.5v 51A 27kg Package Includes: 1 Piece Motor 1 Piece Propeller