Systems & Propulsion

Offshore Log: Thoughts on Engine Spares For Cruising

Emptying out the spares inventory for Calypso's Perkins diesel was an eye-opener—there were plenty of parts back-ups, and, in Nick's view, all for the best of reasons.

The Front Line in Filtration

Wire mesh screens are a pain to clean. Fibers push through neighboring holes, resulting in what is known in the industry as “stapling.” They...
Lowering the Beta 20, the Kubota 722 block marinized by the British, to replace a Volvo MD7A two-cylinder. (Photo/ Bert Vermeer)

Engine Replacement on Islander Bahama 30

There may come a time when repowering your cherished sailboat needs to be addressed. I suspected that not all 13 horses of the venerable...

Simple Lithium for Outboard-Powered Tenders, Daysailers, and Sport Boats

Lithium is cool. Your cell phone uses it. Cameras, laptops, flashlights … everything. But “cool” is not a reason. Fire is not a big...

Ensuring a Safe Space for Batteries

When charging, lead acid batteries generate hydrogen from the electrolysis of water, and some acid gases, the amount of which vary with the battery...

Impact of Modern, Triangular-Design on Boat Performance

Go round any boat show and look at the hulls from underneath—most now have a narrow, very pointed bow and a broad flat stern....
Beneteau First 44. A modern wide stern boat with a deep narrow fin and bulb plus twin rudders. Note the very shallow hulls as well. This design epitomizes the modern fast "cruiser" and draws heavily from racing designs. (Photo courtesy of Boats.com)

Keel and Rudder Design Basics

This is a simple explanation for those new to sailboats about what effect sailboat design has on performance. There are few “bad” boats but...
Parallel hybrid setup. Image courtesy of Ortomarine.

Diesel-Electric Hybrids Vs. Electric: Sailing’s Auxiliary Power Future

How do we reduce and even eliminate our sailboat's carbon dioxide emissions when using auxiliary propulsion and electrical HVAC systems? Just like with automobiles, how...

Sailing Triteia: Budget Bluewater Cruising

If I were to sum up, in one word, how James Frederick has managed to create his sailing life, I’d say “resourcefully.” The 49-year-old...

How To Keep Pipe Fittings Dry: Sealant and Teflon Tape Tests

After replacing the raw water pump on his 30-plus-year old Universal diesel, former PS Editor Darrell Nicholson reconnected the tangle of hoses on the...

Why the Catalina 42 Took Over the Caribbean

You see them everywhere — the Bahamas, the Virgin Islands, all across the Caribbean. The Catalina 42, especially the Mark II, has quietly become...

Latest Sailboat Review

Dragonfly 25-2 Boat Review

If you’ve ever dreamed of blasting across the water at 25 knots with the wind in your hair and the spray in your face...