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TECH CORNER
MAINSAIL REEFING    SHOP NOW
 
 
Danilo Fabbroni Guide to Standing and Running Rigging: RIGGING

 
 
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 - 10.4 m)
Big Boat: 35' - 42' (10.7 - 12.8 m)

Small
Boat
Mid-
range
Big
Boat
HARKEN PART NUMBER
Single Line
A 430 430
Dual Line
A 350
2644
2644
2606
2606
1963
1548
B 348
2652
2652
2600
2600
1950
1540
C 096
222
206
1986
1988
1988
1990
D 339
237
339
237
237
 
System 1
 
    Single Line: Single line reefing kit for boats from 22' to 27' (6.7 m to 8.2 m). Reefing is easy—just ease the halyard to a predetermined mark and pull the single reef line taut.  
    System 2 with reefed overlay  
    Dual Line: 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 line 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.