| Motoring into head winds
James
You are right motoring into headwinds or adverse seas can present difficulties, particularly on cats with a high windage like the 420. This is true whatever propulsion system you use, but is especially true if you don't have plenty of power in reserve. I believe that in designing a hybrid propulsion system there is a more direct trade-off between power and weight than for conventional diesel propulsion. With a hybrid system, everything has to be scaled up to handle the increased power, e.g. cables, breakers, battery bank, generator etc.. With conventional diesel you just buy a bigger engine. Costs follow the same pattern. Double the power of your hybrid system and you more than double the costs, the same isn't true for diesel engines.
Chris
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