b"MainsheetTwo-Speed MainsheetsPart numbers represent hardware most commonly used.Typical boat length: A 2:1/4:1 3:1/6:1 A B 3:1/6:1Small Boat: 6.7 - 8.5 m (22 - 28') AMidrange: 8.8 - 10.4 m (29 - 34')Big Boat: 10.7 - 12.8 m (35 - 42')Diagram Small Boat Midrange Big BoatRef. Description Part No. Part No. Part No.2:1/4:1 Swivel BaseA Double 2602B Single 2600 C BC Double 2634 B CD Cam base 402 B D3:1/6:1 DA Cross block 400 400 B Fiddle 401 401 3:1/6:1 Swivel Base 2:1/4:1 Swivel Base: This3:1/6:1: This 3:1/6:13:1/6:1 Swivel Base: A Single 2600 2600system is often found ontwo-speed system isThis 3:1/6:1 system allows B Double 2602 2602boats like J/24s where aused on end-boomthe mainsheet trimmer to C Double 2634 2634center-mounted swivelsheeting and mainsailsbe positioned anywhere D Cam base 402 402base is desired. up to 22.3 m 2(240 ft 2 ). on the boat. A great setup 4:1/8:1 Swivel Base for sportboats.A Double 2602 2602 B Cross block 400 400 C Double 2634 2634 D Cam base 402 402 A A4:1/8:1CBD4:1/8:1 Swivel Base: Similar to the 3:1/6:1 swivel base system, but uses a 4:1/8:1 tackle for more power.260"