We have run comparative models of alll and every available "fuel", from it's source untill the exhaust of the "engine", in comparable "vehicles".
Overall (but then I will have to prove this, I suppose) we come out as most efficient; only electricity can be produced more economically, but then the "vehicle" is much heavier due to the weight of the batteries.
Having said this, I must admit to a certain disappointment about the reactions received so far.
I thought this community had an interest (certainly in this technical section) in very complicated machines we call yachts.
All replies show either disbelief or compassion.
In other fields of application - be it automotive or industrial - we enjoy a lot more enthusiasm.
But then, yachting - in line with aviation - is a very conservative environment.
I'll keep you posted and I'll reply - within reason - to your questions.
