Outhaul Systems

The outhaul controls and shapes the mainsail. Ease the outhaul to increase draft and power up the sail. Tighten the outhaul to flatten the sail and reduce drag and heel in heavy air.

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)

 

2:1 Internal

Suitable for dinghies or small keelboats. A flexible cable shackles to the sail and enters the boom through a wire block. Placing a block aft of the cleat allows the crew to pull from a variety of positions.

outhaul1.gif
Diagram
Ref.
Description Small Boat
Part No.
Midrange
Part No.
Big Boat
Part No.
A Thru-deck 106 302 306
B Single 348 2650 2152
C Thru-deck 088 131 046
D Cam cleat 468 150 150
E Single 349 2149 2149

 

4:1 External Cascade

A simple external outhaul system. A cascade of two 2:1 tackles produces a 4:1 advantage.

outhaul2.gif
Diagram
Ref.
Description Small Boat
Part No.
Midrange
Part No.
Big Boat
Part No.
A Eyestrap 281
137 1558
B Cheek 350 2644 2606
C Single 2146 2148 2152
D Cam cleat 468 150 150

 

5:1 Internal

This 5:1 internal outhaul is popular on small offshore boats.

5-1internal_out.gif
Diagram
Ref.
Description Small Boat
Part No.
Midrange
Part No.
Big Boat
Part No.
A Eyestrap 201 137 1558
B Fiddle 2655 2621 2690
C Fiddle 2656 2622 2691
D Thru-deck 302 306 310
E Thru-deck 088 106 106
F Cam cleat 468 150 150

 

6:1 Internal

A 6:1 internal outhaul system is popular on small-to medium-sized offshore boats using a traveler car to carry the clew of the mainsail.

outhaul4.gif
Diagram
Ref.
Description Small Boat
Part No.
Midrange
Part No.
Big Boat
Part No.
A Eyestrap 201 137 1558
B Double 407 343 2639
C Triple 408 344 2640
D Traveler 2727 T2701B T2701B.HL
E Thru-deck 302 306 310
F Thru-deck 088 106 288
G Cam cleat 468 468
150
150

 

2:1 Furling Main

Mainsails that furl into the mast are loose-footed and usually have a ball bearing outhaul car that rides the length of the boom. The outhaul starts at the car, leads through the clew block on the sail, back to the sheave on the car, and into the boom where it leads to a winch.

outhaul5.gif
Diagram
Ref.
Description Small Boat
Part No.
Midrange
Part No.
Big Boat
Part No.
A Clew block 371 6061 6061
B Traveler G222B 1648 595
C Thru-deck 302 306 310

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