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Systems & Propulsion

Mailport: Water Lift Muffler, Drogues, Hunter 30, and More!

After corrosion destroyed the water-lift muffler aboard his 1972 Irwin 37 (above) and he could not find a replacement, subscriber Gene Millard fabricated his own.

Pump Out Attention Extends to the Head

Although head maintenance is low on everyones fun task list, working on functioning head that has been flushed clean (flush with lots of clean water, soak in vinegar for 15 minutes, and then flush that through with more water) head is much more pleasant than working on a broken, clogged head.

Mailport: September 2010

Letters to Practical Sailor from our readers. September 2010's topics include barnacles, teak finish, knots for a bosun chair and LEDs.

Step-by-step Winterizing Tips

Winterizing agents should never be used in freshwater tanks or hot-water tanks. Doing so will greatly increase the chances of biological growth, which can result in foul-smelling, bad-tasting water. If your boats water system does not have bypass fittings that allow you to add glycol to waterlines, install them. The addition of a few simple fittings can reduce the annual process from hours to minutes for the cost of a few jugs of glycol.

12 Ways to Extend Your AGM Batterys Life

12 Ways to Extend Your AGM Batterys Life

Practical Sailor Tests 4-horsepower Electric Outboard

As we did with the Torqeedo electric outboard and Minn Kota trolling motor in past tests, Practical Sailor put the Solid Nav Traveler to work in sea trials on a Cape Dory Typhoon to determine whether it was a viable replacement for a small boats gas-powered outboard. The four-horsepower Traveler electric motor is marketed by Solid Nav and manufactured by Suzhou Parsun Power Machine Co., Chinas largest outboard exporter. Using a brushless 48-volt DC motor made by Mars Electrical Co. of Milwaukee, Wis., the Traveler combines a familiar drive train and an innovative solid magnet electric motor. At first glance, it looks like a small conventional outboard. Available in both long-shaft (20 inches) and short-shaft (15 inches) models, the Traveler is a gasoline outboard alternative best suited for a pocket cruiser (like a Cal 25) or similarly sized weekend cruiser where electric propulsion is desired. However, its required battery entourage limits its portability and affordability, and charging needs limit its practical use on smaller boats.

Packing Extraction Tool Tested

The packing material encircling your shaft and tucked out of sight inside the packing nut is truly your boat’s Achilles heel. Installed improperly it can damage the prop shaft or even sink the boat. Getting it replaced at least biennially should be on your list. On a mid-size cruiser it’s a job that ranks just […]

Cannister Dissection Yields Surprises but Few Defects

Different filter manufacturers can chose different rating systems that rely on different statistical values for filtration. The higher the percentage at a given rating, the more effective. Interestingly, the effective rating changes over time, as particles clog up the media, making the holes smaller.

In Search of Better Filters

Presumably, air cleaners are about dusty environments, and dust is a rare thing on the water. But is the engine room actually clean? We’ve seen...

Keeping Your Cool With A/C

Part 2—What’s new with refrigerants and controls.

Sizing Up the Autumn List

Some of the best sailing I ever had was September on Narragansett Bay, pretty close to heaven in my mind. But before we let a long September reach carry us away-and hopefully carry us through winter-its a good time to take out a pen and pad, and start to build the winter work list.