Harken Fly Blocks

SinC Harken Fly Blocks

January 18, 2023

Vang, ride height systems, and more on a modern Moth

Harken soft-attach Fly blocks are designed to provide strength without mass, providing sailors with big power in a low-aero package. Designed specifically for high-tech line, these efficient blocks have an incredible working load for their small size. Fly blocks are perfect for use on foiling dinghies and sportboats and for vang cascades and backstay systems on Grand-Prix racers. They’re small & light but incredibly strong. They’re built with titanium sheaves wherever optimal—with stainless races and bearings where the job demands and composite components wherever weight can come out.

Recently, Harken asked their social media audience to show us how you use Fly blocks on your boats. What they found were tons and tons of creative applications for the Fly blocks. But they also found out how truly wonky some of you really are.

Here are some favorites. You’ll see them in vang cascades, backstay systems, shroud adjustments, adjustable jib leads, and more.

Left: Finn controls get the Fly treatment / Right: A super Fly Vang-Master upgrade for Katahdin, a turboed Farr40

SinC Harken Fly Blocks 2 400SinC Harken Fly Blocks 3 400

Below: ILCA Dinghy vang system from Ropes Maker

SinC Harken Fly Blocks 4 400













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