Thanks for your reply.
I can motor
at full power ~3 hrs at batteries
7-8 hrs at batteries
only at calm weather
, 3-4 knots.
Selected gas gen is not able to provide sufficient power to motor at full power (it can provide sufficient power to motor at half throttle only). Such a decision is dictated by the fact that I do not want to install a heavy generator
and do not expect a situation in which it takes a long time to motor at full power.
In case I need long full power motoring, half power provided by gen, rest provided by batteries. In case of full charged batteries it is 7-8 hrs of motoring at full power. After that I have to reduce power by half and use only gen, because batteries discharged to this time.
Is this a good idea - next navigation