Yamaha
Yamaha HARMO: specifications
The Yamaha HARMO is an electric motor with an annular rotor (rim-drive) rated at 3.7 kW, which the manufacturer states as the equivalent of 9.9 hp for a combustion outboard.
The essentials: this model against its direct rivals
Where it offers more than its rivals
- Highest static thrust of the comparison1,000 Nrival: 632 N
- Heaviest motor (battery excluded)64 kgrivals: 19 to 24 kg
Head to head with its direct rivals
Side-by-side figures for the HARMO against ePropulsion Navy 3.0 Evo · Mercury Avator 35e · Torqeedo Cruise 3.0, at a comparable power class.
| Characteristic | Yamaha HARMO | ePropulsion Navy 3.0 Evo | Mercury Avator 35e | Torqeedo Cruise 3.0 |
|---|---|---|---|---|
| Input power kW | 3.7 | 3 | 4.4 | 3 |
| Petrol-equivalent hp | 9.9 | 6 | 9.9 | 6 |
| Static thrust N | 1,000 | n/a | n/a | 632 |
| Weight kg | 64 | 24 | 21 | 19 |
| Voltage V | 48 | 48 | 48 | 24 |
The “petrol-equivalent” is each manufacturer's own claimed figure, not standardised: it is not comparable across brands.
Key figures
- Propulsive power
- 3.1kW
- Thermal equivalent
- 9.9hp
- Voltage
- 48V
- Dry weight
- 64kg
Sources and technical context
Notes and conditions (FR)
Technical specifications
Motor
| Motor technology | rim drive |
|---|---|
| Input power | 3.7 kW |
| Propulsive power | 3.1 kW |
| Thermal equivalent | 9.9 hp |
| Thrust | 1,000 N |
Electrical
| Voltage | 48 V |
|---|---|
| Integrated battery | No (external) |
| Battery capacity | n/a |
| Protection rating | n/a |
Practical
| Dry weight | 64 kg |
|---|---|
| Control | Remote control |
| Shaft | X (25") |
| Indicative price | n/a |