Running Rigging

What is the rate of cycle loading on a docked boat? What is the ratio of those loads to breaking strength? PS looked at load cycling rates for a report on spring lines (see PS July 2016 online).

Overheating Ropes

Intra-fiber friction has long been blamed for ropes “overheating.” PS analyzes the data.

We have a love-hate relationship with nylon rope. When it comes to absorbing shock, it offers the best available combination of strength, elasticity, and economy. On the downside, it is sensitive to UV, abrasion when wet, has a low working load limit, and is weakened over time by internal wear.

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More Running Rigging

Working with High-Tech Ropes

 Subscribers OnlyIf you are working with low friction rings, sooner or later you’re going to work with Amsteel and other high...

Splicing a Polyethylene Cover

Extremely low friction allows Amsteel and other high molecular weight polyethylene (HMPE) lines to run like...

A Sure Way to Secure the Boom

When the wind really blows, the pleasant chiming of a marina takes on a different character. Above the howling of the...

Dyneema Abrasion Test

 Subscribers OnlyAs outlined in our previous report on lifelines, high modulus polyethylene (HMPE) fiber rope has revolutionized...

Penny Pincher Pawl Lube

 Subscribers OnlyWinch pawls require a different lube the rest of the winch. The only time they are moving is under practically no...

Undoing Mainsheet Twist

What kind of line do you use in your davit tackle? My lines keep twisting, chafing, and jamming. The ropes run...