The Five Great Lakes

Tucked into the heart of North America, five hundred miles from the sea, lies one of the world’s great adventure cruising grounds. A quarter-million square kilometres of water, and seventeen thousand kilometres of coastline, call out to sailors seeking a season or two off the beaten path.

Just what is a “commercial” or “continuous” duty rating on an engine, and should you get that? Matt starts this chapter with the reason that these ratings exist, and then moves on to how to select the correct engine duty rating for a displacement boat.

So far in this Online Book we have learned about the fundamentals of engine and propeller efficiency and, in the last chapter, we looked at a way to make our existing engines a bit more efficient. In this chapter Matt explains a much better way to get the very most out of every drop of diesel fuel.

Propeller Efficiency

Matt brings his customary clarity to a complicated subject: propellers. Reading this post will cause you a bit of brain sweat, but doing so can help you get big gains in engine efficiency.

Budgeting For a Boat

So far we have written a lot about how to buy an offshore boat, but what about the elephant in the room: how can you possibly afford to buy said boat? Matt tackles that thorny subject from the real life point of view of someone working toward just that goal.

Lightning strike! Just the words can make us cruising sailors, who sail around the ocean with the highest thing in hundreds of square miles sticking up above our heads, nervous. In this chapter Matt, AAC Engineering Correspondent, will help you understand how lightning strikes happen and what you can do to reduce the associated risks.

Artnautica 58—Design Analysis

We continue our series on desirable offshore motorboats, for those retiring from sailboats, with a design analysis by AAC Technical Correspondent, Matt Marsh, of the Artnautica LRC58 currently in-build in New Zealand. Even if you are not interested in this particular boat, you will want to read Matt’s insightful analysis of hull form and cost considerations.

Fire Control

Matt, AAC Technical Correspondent takes a look at the challenges of dealing with a fire at sea. In all likelihood, his post will get you thinking, as it did me, about how inadequate the fire fighting resources on your boat are and what to do about it.

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