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Originally Posted by momo55
Just about one thing i'm a little bit confused :
On my way to Mariana Islands ...i'm surfaced and 1/3 ahead ...i hit the "maximum range at current speed "button and the result is 14256 km.
Then i go to 2/3 ahead and the result is +23.000 km
So the sub consumes less fuel at 2/3 than at 1/3 ? 
I'm just reporting ....not complaining
I put the trottle at 2/3 to save fuel now  |
That's reasonable...the peak in range occurs at about 10 knots for most boats (not S-class). Engines and propellers lose efficiency at very low speeds, hence the lower range at slow speeds.