Rotary mower blade position synchronization system

A rotary mower blade position synchronization system, comprising:

• a first rotary mower blade and a second rotary mower blade, each of the first and second mower blades rotated by an electric motor;
• a first position sensor and a second position sensor, the first and second position sensors providing electric motor position signals to a first control inverter and a second control inverter;
• the first control inverter communicating with the second control inverter to run a calibrate routine to set the angle of the first rotary mower blade relative to the second rotary mower blade, and a synchronous operation mode to operate the first and second electric motors at rotational speeds that maintain the position of the first rotary mower blade relative to the second rotary mower blade when mowing.