Peter - "Power is a function of speed times drag. So 800N at 4m/s (say 8kts) equates to a power input of 3200W. At 60% efficiency that becomes 5.3kW"
I have tried to convert that to hp, but I am totally confused. A Newton = a watt so 800 N = .8kW so where does the 3200W (4.26 hp) come from? It seems low, even the 5.3 kW seems low.
And why are you using a 60% efficiency? I thought you said the Electrical/motor system was apx. 90% efficient?
Also these figures are for the boat not each individual hull? Correct?
Thanks in advance,
Talador
__._,_.___
Posted by: taladorwood@yahoo.com.au
| Reply via web post | • | Reply to sender | • | Reply to group | • | Start a new topic | • | Messages in this topic (66) |
.