Designing a Dump Line for the Multihull Mainsheet
Many of Practical Sailor's previous reports have explored the risks of multihull capsize, and what sailors and designers are doing to reduce this risk, which, though generally low, increases as designers push for more speed. One detail that we have not explored in great depth is the engineering of a “dump line,” which allows the helmsman (or automatic system) to quickly release the mainsheet in case a capsize is imminent. Simon Angus, a Canadian sailboat designer and builder who recently launched a new 40-foot catamaran that fits into a shipping container, has a manual system that involves the clever use of Ronstan’s constrictor textile rope clutches, which allows a person at the helm to quickly release the mainsheet with the swift tug on a parachute cord.
Drogues to Dampen Yaw
A leading cause of anchor dragging is yawing so vigorously that either the soil around the anchor is liquefied, or the anchor simply capsizes....
Testing the DIY Dog Bone Shackle
Soft shackles became the cool thing nearly as soon as they appeared on race boats. Any savvy DIYer could make them using Dyneema single...
Sizing Up Improvements In Low Friction Rings
The first time I brought a handful of low friction rings (LFR) to the boat, I got funny looks from my partner. The plan...
What Color Bimini Top is Best for Summer?
So you want to build the awning described on page 7 of this issue, and were wondering what material to use. We’ve been using...
Revive Your Mast Like a Pro
Unobtainium is the metal at the top of every Naval Architect’s wish list. It’s a perfect marine material; light, strong, stiff yet flexible—it’s as...
Spinnaker Tips for Multihulls
A Practical Sailor reader recently reached out to me with a question regarding light air sails on catamarans: “I’ve owned two catamarans, and have...
Arborist Gear for Solo Mast Ascents
My introduction to rope walking ascent was caving back in the 1970s. Each trip started with 75-200 drop straight into a sink hole, followed...
A Second Look at Anchor Fluke Shape
The new anchoring myth making rounds on the internet is that a scoop shape is what makes an anchor hold. Though it seems logical,...
Chafe Tape Plan
No one like dings, but we accept them as part of active sailing. Most boats have black marks behind winch handle pockets and dings...






















