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Tag : Blocks

Sailboat Blocks Explained | Expert Advice

In sailing, hardware pulleys are referred to as ‘blocks.’ Blocks are used to create purchase systems, increase mechanical advantage or redirect and guide lines (ropes). There are many different configurations, attachments and design functionalities in the world of sailing blocks today. Parts of a Basic Block Bushing- Lining for sheave. Transfers load from the sheave to the cheeks. Sheave- Wheel with groove for rope to run on. Cheek- Encloses the sheave. Transfers the load to the straps/strop Strap or Strop- Lays on […]

Advantages and Uses for Plain Bearing Sailboat Blocks | Expert Advice

Plain bearing blocks are the original blocks that started it all. They paved the way for more advanced and higher performance blocks like the ball bearing and roller bearing blocks. Plain and simple is the name of the game for these guys. They have a simple construction with the least amount of moving parts you can find in a block. Generally they made of a plastic or metal sheave (the wheel thing) rolling on a metal pin or bushing. In some instances, they were made of Bakelite […]

Advantages and Uses of Roller Bearing Sailboat Blocks | Expert Advice

So you may be asking yourself, Why would I need a fancy shmancy Roller Bearing Block? What makes them so special anyway? Well..we are here to show you. One of the greatest advantages of a Roller Bearing Block over a Plain or Ball Bearing Block is the low friction safe working loads.  Highly loaded lines in a Roller Bearing Block will run faster, and adjustments are much easier. Roller Bearings may not necessarily run as free as ball bearings, but they do offer a significantly higher working load. Ball […]

Advantages and Uses of a Ball Bearing Sailboat Block | Expert Advice

Today we are highlighting ball bearing blocks as part one of our three part discussion on blocks, their characteristics, and uses. So, what is a Ball Bearing Block?  In its simplest form, a ball bearing block it is a housing containing a rolling sheave with balls lining the race on the either side of the sheave.  The balls reduce friction by minimizing bearing surface and roll between the moving surface and the non-moving part of the block. Because of this, lines are able to slide […]

Comparing 75mm Harken Corbo Block Types | Expert Advice

Whether you’re a small boat sailor, or a big boat sailor you know the benefits of having blocks on loaded lines. Harken makes a wide range of blocks to fit all your needs. Three main Harken carbo blocks are the Standard Ball Bearing Block, the Ratchet Block, and the Ratchamatic Block. Why use a ratchet block? Ratchet blocks are great for when you need to control highly loaded sheets with ease. There are two types of Harken ratchet blocks, the standard Ratchet, and the Ratchamatic. […]

How to Lash a Harken T2 Ti-Lite Soft Attach Block | Expert Advice

Here, an APS Rigger shows you how to properly lash a soft attach Harken T2 block using an APS Dyneema Shackle Loop (DSL). Background: Harken’s T2 Soft Attach Blocks represent the first blocks with no fasteners, rivets, or other metal parts – making them incredibly light. These blocks paired with soft shackles will give you lightweight, high performance without compromising strength. Whether you call them soft shackles, softies, or loops – it’s clear that spliced Dyneema shackles are quickly becoming the norm […]

Ronstan Orbit Blocks vs. Harken Blocks | Expert Advice

This year Ronstan released new smaller (20 and 30 mm) sizes of their Orbit blocks. They’re pretty nifty blocks and as with any new introduction into the realm of marine hardware they beg the question – are they better? Our very own Rob Beach set about answering that question and came up with a whole bunch of numbers for us to crunch. We set about comparing the new 20 and 30mm Orbit blocks with the comparable Harken and older Ronstan […]

Laser ACC Regatta Wrapup and Harken Block Test Drive

Harken Laser Blocks Tested | Expert Advice

The Laser ACC (Atlantic Coast Championship) regatta was held this past weekend one block from our APS offices at the Severn Sailing Association here in Annapolis. It was a fairly light air event with a total of 5 races held. Even though it was light it was a great regatta and I think everyone had a good time. The Laser Radial event was won by Christopher Stocke and the Laser 4.7 winner was Mary Hall. Here in the US a Laser […]