Mainsheets are simple hardware systems, but are among the most important as they are in almost constant use.

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)

4:1 Fiddle This 4:1 tackle is the most common system on boats under 28 ft (8.5 m). Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Fiddle 2621 2690 2690 1559   B Fiddle 2674 2695 2697 1566

6:1 Reeved Right Angle Boats with mainsails to 375 ft2 (35 m2) often use a 6:1 system. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Triple 2640 2604 2604 2664 1546 B Triple 2630 2648 2613 2141 2630 2669 1556

8:1 Beachcat This 8:1 purchase handles high mainsheet loads on Beachcats up to 20 ft (6 m). Diagram Ref. Multihulls 8' - 14' 15' - 20' A Quad 2654 2631 B Triple 2619 2632

4:1 Swivel Base Position the swivel base block off the traveler car to allow mainsail adjustment without dragging the car to windward in light air. To avoid tightening the leech, curve the track ends up. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Single 2636 2600 2660 1540   B Single 2637 2601 2661 1541   C Single 2636 2625 2660 1549   D Cam base 205 144 1574

4:1/16:1 Gross/Fine This powerful gross-trim/fine-tune cascading system allows crew to use the 4:1 gross-trim for most trimming and the 16:1 fine-tune for precise adjustments. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Single 2636 2600 2660 B Double 381 2642 2602 C Fiddle 2658 2676 2697 D Fiddle 2675 2696 1565

4:1/16:1 Double-ended Fine Tune This 4:1/16:1 system uses a dinghy-like double-ended tackle that locates the sheet ends on the cockpit sides. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Single 2636 2600 2660 B Single 2135 2135 1549 2670 C Cam base 205 144 1574 D Double 342 2638 2602 E Single 349 2652 2600 F Cam cleat 471 471 150

6:1/24:1 Gross/Fine This 6:1/24:1 cascading system is used on boats with end-boom sheeting and mains as large as 275 ft2 (25.5 m2) and end-boom sheeting. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Double 2638 2602 2602 2662 B Triple 2647 2629 2629 1555 C Single 2636 2600 2600 2660 D Fiddle 2655 2621 2690 E Fiddle 2674 2674 2695

6:1/24:1 Cascaded This 6:1/24:1 system is used on boats with mains as large as 275 ft2 (25.5 m2) and end-boom sheeting. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Triple 2640 2604 2664 B Triple 2647 2629 2668 C Double 342 2638 2602 D Fiddle 2658 2624 2624

7:1/28:1 Gross/Fine This gross trim/fine tune system is found on racing multihulls where it is desirable to split the gross trim from the fine tune. Placing the fine tune in the boom provides a very clean system that the trimmer can get a hold of and put his weight into it. The powerful cascading fine tune portion is used to haul the boom in that last little bit. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Single   2600 2660 B Triple   2629 2685 C Straphead   2650 2650 D Triple   2604 2664 E Fiddle   2655 2621 F Cheek   2644 2606 G Thru-deck   046 047 H Pivoting exit   140 140

4:1 with Dedicated Winch This system moves the traveler over the companionway to clean up the cockpit. A favorite on cruising boats. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Single   2600 2660 1958 1969 B Fiddle   1559 1975 1975 C Single w/becket   2661 1959 1959 1970 D Footblock   1548 1963 1963 1972 F Winch   35.2STA 35.2STC 40.2STA  40.2STC 40.2STA 40.2STC 46.2STA 46.2STC

5:1 with Dedicated Winch This system is popular on cruising boats with cabintop travelers. The sheet leads forward to the gooseneck and then down and back to a winch on the aft edge of the cabintop. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Single 2600 2660 1540 1958 1969 B Double w/becket 2603 2663 1560 1961 1962 C Footblock 2606 1548 1963 1972 D Winch 20STA 20STC 35.2STA 35.2STC 40.2STA 40.2STC 46.2STA 46.2STC 46.2STA 46.2STC

2:1 with Dedicated Winches This simple double-ended system lets the mainsheet run freely through the blocks which allows the traveler car to move easily. The trimmer makes sail adjustments from the high side. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Single   1586 1969 B Single   1540 1958 C Footblock   1548 1963 D Winch   35.2STA 40.2STA 40.2STA 46.2STA

Admiral's Cup 2:1 with Dedicated Winch In this system, the traveler is independent of the mainsheet so it rolls freely. The sheet leads forward along the boom before it turns down and aft to winches. Used on race boats like the Farr® 40. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Double 1544 1960 B Single   1586 1958 1969 3007 C Single   1540 1969 D Footblock   1548 1963 B Winch   35.2STA 40.2STA 46.2STA

3:1 with Dedicated Winch Many large boats use this simple 3:1 system. A block on deck turns the sheet to a winch. Diagram Ref. Description Small Boat Part No. Midrange Part No. Big Boat Part No. A Single w/becket   1970 3008 B Single     3007 1969 C Stand-up     1974 3012 D Winch     46.2STA 46.2STC

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