Still don't quite understand over/under propping and probably never will.
But is there any advantage going to a different prop and or gears on a boat that will run at 15-20 knots to get better fuel usage?
I'm still considering motor yachts with larger gas or diesels that can cruise at 15-20k but will probably cruise at 7-8 knots and have no need for a prolonged cruise at higher speeds.
Mostly concerned with extending the range as much as possible.
So will it help to re-prop to get the most efficient engine speed down to 7-8 knots?
But is there any advantage going to a different prop and or gears on a boat that will run at 15-20 knots to get better fuel usage?
I'm still considering motor yachts with larger gas or diesels that can cruise at 15-20k but will probably cruise at 7-8 knots and have no need for a prolonged cruise at higher speeds.
Mostly concerned with extending the range as much as possible.
So will it help to re-prop to get the most efficient engine speed down to 7-8 knots?