Yamaha Marine well-known for its outboard engines ranging from 2.5 to 450hp has started mass production of its Harmo electric marine engine.
The electric motor dedicated to boating, maritime and yachting uses revolutionary electromagnetic-lineal technology, which allows for very high torque, suitable for all Harmo – the outboard that looks like a sterndrive
Utilising a rim drive electric motor that turns a large four-blade impeller, Harmo mounts to the outside of the boat transom in a low-profile housing that more closely resembles a sterndrive than a traditional outboard. Integrated digital electric steering (DES) and Yamaha’s Helm Master EX joystick provide a 140-degree total steering angle for what the company describes as exceptional handling and control.
The system can rotate a single-engine boat within its own length, and allows for true lateral operation in a twin-motor configuration. A 74-degree tilt angle helps keeps the impeller clear of the water when not in use.
Powered by a high-yield, low-drag 3.7kW motor and 48V battery, Yamaha’s Harmo generates 225 pounds of static thrust, giving it a power output roughly equivalent to that of a 9.9hp gasoline outboard. Run time is dictated by battery number, size and type. Available in single or twin motor configurations, the Harmo motor unit weighs 121 pounds and the system can effectively manoeuvre boats up to 32ft in most conditions.
