Back To Back Block - Allen Product Feature

by Allen 3 Feb 2022 04:00 PST

Back to back block in a Vang system © Allen

Back To Back Block - Product Feature

The back to back block is an interesting product and one that a lot of sailors might not understand how to properly use in a system. In this short article, we will explain the applications of this extremely useful block and how it improved the reliability of a Vang strop.

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What is a back to back block?

Our back to back blocks feature two sheaves, both with our patented dynamic bearing technology. The sheaves face opposite directions to allow two control lines to run at a maximum of 180 degrees to each other. Held together with strong stainless steel side straps and nylon mouldings ensures the block will not separate even under two very high opposing loads.

How can a back to back block be applied to a system?

There are plenty of very useful ways to use a back to back block, however it was originally developed for use in a very specific control system. Modern asymmetric dinghies can often feature a "one-string" system, in which by hoisting the spinnaker halyard the pole is also extended and set.

FIND OUT HOW TO USE A BACK TO BACK BLOCK

Back to back block in a Vang system

There are many ways to attach the adjustable part of the Vang to the Dyneema strop. Whether it is by a hook, shackle or high load thimble.
But, by changing the high load thimble or shackle to a back to back block you can almost eliminate the chances of wear to the strop.

SEE THE DIFFERENCE HERE

Back To Back

£33.43

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High Load Top Furler

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