Harken Yacht Equipment Catalog OnLine

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Reference > Mainsail Reefing

Mainsail reefing systems must be designed to operate efficiently under adverse conditions and to provide proper sail shape when reefed. A proper reefing system is a must for both racers and cruisers.

Typical boat length:
Small Boat: 22' - 28' (6.7 - 8.5 m)
Midrange: 29' - 34' (8.8 - 10.4m)
Big Boat: 35' - 42' (10.7 - 12.8m)

Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No.

System 1

A Single line reefing 430 430 —

System 2

A Cheek 350/ 2644 2644/ 2606 2606/ 1963/ 1548

B Stand-up 348/ 2652 2652/ 2600 2600/ 1950/ 1540

C Mastbase block 096/ 222/ 206 1986/ 1988 1988/ 1990

D Bullseye 339/ 237 339/ 237 237

1. Single line reefing kit for boats from 22' to 27' (6.7 to 8.3 m). Reefing is easy — just ease the halyard to a predetermined mark and pull the single reef line taut.

2. A cheek block is mounted on one side of the boom for the aft reef point. The forward reef point is secured to a hook at the tack. If the reef lines are led to the cockpit, the forward line originates at an eyestrap or padeye on one side of the mast, passes up and through the reef grommet, leads down to a fairlead on the mast before being routed to the cockpit. Location of the blocks and eyestraps is important—they must be positioned to pull down and out to keep the sail flat and to prevent lateral loads from being placed on the luff rope or luff sliders.

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