I recently contended with a few of my colleagues here at Power & Motoryacht that most of the propellers we deal with in boat-test reports are of the fixed-pitch variety and therefore, to mention fixed pitch as a qualifier in a list of specifications constitutes an exercise in basest redundancy.
Volvo Penta uses two Formula 26 Sun Sports to test a lightweight, sophisticated V-8 that ups the performance ante. The new Volvo V8-380 demonstrated increased acceleration and improved fuel economy.
Pod propulsion questions now are met with an embarassment of riches. But which is better, Volvo Penta’s IPS or Cummins Mercruiser Diesel’s Zeus system? We take on this tough question here.
The marine transmission: your boat’s unsung hero. Because this simple but durable device is so critical to getting you where you want to go safely and efficiently, you really ought to have some idea of what it does and how it does it.
A Groovy Refinement
Just when you think the latest gas-powered outboards have wrung every drop of power from a gallon of fuel, along comes a new way to tackle the problem. See two new developments here.
The major manufacturers are not resting. Tender power options abound with lighter, more powerful, and, yes, better-looking outboards. Check out the latest developments from the major manufacturers—you may decide it’s time to retire your old outboard and get something new.
Power & Propulsion
If you pay any attention to the topic of boat engines, you’ve probably heard the term “common-rail diesel” bandied about and perhaps wondered what it means. In fact, this technology is in no way restricted to the marine venue; it’s also common in both stationary and vehicular powerplants, mainly because it helps diesels meet new, stricter emission standards.
Mercury Marine has introduced a free app for the iPhone that allows any boater to keep a record of important data and memorable events.
Volvo Penta has introduced a new V-8 featuring significant weight savings and the latest in variable-valve-timing technology.
With engineers looking to increase efficiency and reduce sound levels, the question is raised: Will hybrid power ever work for boats?
Two fledgling companies look to revolutionize the outboard market with two new products on either end of the horsepower spectrum.
The Alpha Outboard
A group of Midwestern engineers think they’ve built the great white shark of motors.
Is this evolution or revolution? That’s what I thought to myself when the press release in my
Time For A Conversion
Unfamiliar with catalytic converters? You shouldn’t be, because you may need one soon.
If you’re like most people, the only time you put serious thought into catalytic converters is when you’re driving down the road and an awful sulfuric scent whacks you straight in the nostrils
The Power of One
Will ZF and SeaVee shake up the boating world with their single-pod center console?
One of the best things about the Miami International Boat Show is that it’s so big, I always find at least one thing there that I never expected. This year the surprise was a 34-foot center console with a
Master of Maneuverability
Twin Disc’s new joystick-control system may give those pod drives a run for their money.
Let’s begin this treatise on maneuverability on a historical note—or rather two of them. The first dates back to an enjoyable dinner I had with Bill Barry-Cotter in Australia several years ago. Barry-Cotter, of course, is
The idea behind the Steyr Motors Hybrid is as elegant as it is simple: tap a diesel's rotational energy by splicing a10-hp/5-kW electric motor/generator between the crankshaft
There's a dilemma that prevents diesel-electric propulsion from being widely adopted in boats and yachts, and it involves one of the
I consider myself an evolving environmentalist, although my wife has to occasionally remind me to recycle cardboard cereal boxes and defunct newspapers, and my nostalgia for old-fashioned boatyard fragrances like red-lead primer and tung-oil varnish continues unabated. While progress on the evolutionary has been slow though, it’s also been sure. For months now,
This is the editorial I've been avoiding: the one about the cost of fuel and what, if anything, we can do about it. As a boat owner like you, who's been shocked so often at the fuel dock I'm beginning to feel like a cow at a slaughterhouse, I know the subject demands attention. But what to say?
PMY is not going to do "10 Secret Ways to Save Fuel
One of my boating buddies made a remark the other day that had a strange but true ring to it. "Bill," he said, "it seems like there's some kind of theme runnin' through your life these days—you got a boat that's an awful lot like your car." We'd been riding around for much of the morning in my silver Toyota Prius, affectionately known as the Tin Mullet, and now we were riding around
I'm a lucky guy. Ever since Volvo Penta introduced IPS to the world of recreational watercraft some four years ago, I've had the opportunity to test drive a bunch of pod-equipped boats, not only those equipped with Volvo Penta systems but also those
A few years back, a good friend of mine struck out in his first-ever billfish tournament. Now, he's no amateur. He was born on a boat (literally), manages a marina, and has helped his commercial-captain father run vessels offshore for as long as he can remember. But by the time the tournament came to an end, he was beat. Exhilarated? Yes, but completely and utterly exhausted. He'd spent several
"But I like the 1,300-hp motors," my friend Tom says emphatically while discussing his new 50-footer. "They give me a 33-knot cruise. The 1,050-hp ones will only keep me somewhere between 28 and 30," he adds with a sigh. "What's wrong with 30 knots?" I retort. "Nothing," he replies, "but the bigger motors give me 33 knots!" You can see where this conversation was going. Tom is also restoring a
The days of gasoline and diesel are rapidly coming to an end. With more than a quarter of the northern polar ice cap gone this summer and unprecedented drought in the southeast and west, even Dubya
If you could eliminate one thing from boating, what would it be—other than cost? If you said rough water, you'd not be alone. Uncomfortable gyrations have been the bane of seafarers ever since someone hollowed out a tree trunk. But, of course, no one this side of the New Testament can calm troubled waters. Ancient mariners poured oil on them to no avail. Modern active and passive