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An Efoil/surfboard propeller has two basic dimensions: diameter and pitch. These dimensions are used to describe the propeller, usually in inches, and always stated as diameter x pitch. For example, a propeller described as 7.5 x 7 has a diameter of 7.5 inches and a pitch of 7 inches. These dimensions are often stamped or cast right on the propeller. 1. How to Calculate Propeller Diameter and Pitch? Propeller diameter is simply the diameter of a circle scribed by the blade tips of the prop. Propeller pitch is the distance the prop would move forward in one rotation if it were moving...

Check our website VESC based controllers: https://michobby.com/collections/vesc-based-controllers What is VESC Brake Principle? How is VESC brake working? 1. If a vehicle does not need mechanical brakes, but must be able to brake, it must use electronic brakes. The principle is that the kinetic energy on the motor and the load can be used as a generator through the DC motor to convert the kinetic energy into electrical energy. Then the electric energy is consumed by heating and charging. 2. The electric energy that is emitted must not only charge the battery, but also release the heat. What is the process?...

Some notices when test motor KV with VESC? KV must be tested without load. To compatible with different kinds motors,  VESC default parameters for motors are more conservative in the design. If test by VESC, test value would be lower about 5% than actual value. Tested KV will be different under different modes and parameters. Tested value will be higher when test in following situations: with hall sensor, high angle, FOC higher than BLDC, V6 higher than V4.   What is KV? Does higher KV mean faster motor? The KV rating (not to be confused with kilo-volt) is the RPM of the motor (k)...