Seamanship

Block and tackle were used to take the loads off the dock lines while testers measured the loads with a calibrated load cell.

Spring Lines for Storm Preparedness

The often overlooked spring line proves its worth in storm simulation experiments.

A well-secured boat in the best-designed marina can’t be expected to survive a direct hit from a hurricane. Major boat-insurance companies recommend hauling out and tying down your boat, but that isn’t always an option, nor is it any guarantee.

Continue Reading

More Seamanship

Raising the Bar on Lifelines

 Subscribers OnlyLifelines are often disparaged as nothing more than tripping hazards, mounted so far below our center of gravity that...

In the Perfect Position to Fail

 Subscribers OnlyFor centuries, navigators have been coping with two key variables that convey major consequence. The first is the...

Slicing, Dicing Abrasion Data

 Subscribers OnlyFor testing, we used the same abrasion rig we used to test sewn eyes and rope (see PS March 2015). A modified wood...

Reading the Weather

 Subscribers OnlyThe air surrounding us on the surface of the earth weighs about 1.2 kilos per cubic meter, and when we stack up these...