Comparison Chart
| Manufacturer | Blade Dia" | Noise Level | Charge Incr | Charge Incr |
| Model | @11 Kts. | 3.5Hrs@ 5.5Kts |
2Hrs@ 7Kts |
|
| Air Marine 400 | 46 | 102 dB | 0.1 volts | 0.2 volts |
| Ampair 100 | 36 | 78 dB | 0.0 volts | 0.2 volts |
| Fourwinds II | 60 | 83 dB | 0.2 volts | 0.2 volts |
| Rutland 913 | 36 | 75 dB | 0.2 volts | 0.23 volts |
| Windbugger | 50 | 80 dB | 0.2 volts | 0.2 volts |
| Kiss* | 60 | * | * | * |
| Ferris Windpower* | 60 | * | * | * |
| *unavailable for testing | Cruising World | October 1999 |