b"Backstay Adjuster 6:1 12:1A 2:1Part numbers represent hardware most commonly used. ATypical boat length:Small Boat: 6.7 - 8.5 m (22 - 28') BMidrange: 8.8 - 10.4 m (29 - 34')Big Boat: 10.7 - 12.8 m (35 - 42')6:1BCDiagram Small Boat Midrange Big BoatRef. Description Part No. Part No. Part No.6:1 Right AngleA Triple 2640B Triple 2648 6:1 Right Angle: This simple 6:112:1 Cascaded: This cascading 2:1/6:1 12:1 Cascadedsystem is used on small cruising boatssystem provides a 12:1 purchase and is A Single 300 with a single line or wire backstay. used on small racer/cruisers and daysailers.B Triple 344C Triple 347 4:1 8:14:1 Split Backstay A A A AA Single 304 308 B Fiddle 2621 2621 C Fiddle 2624 2624B A8:1 Split BackstayA Single 304 308 B Fiddle 2655 2621BC Fiddle 2658 2624 6:1 Double-ended Split CA Single 300 304 B Single 340 2600CC Double 342 2602 D Stand-up 349 2652 E Cheek 350 2644 F Cam cleat 150 1504:1 Split Backstay: This 4:1 system8:1 Split Backstay: A more powerful Double-acting Hydraulic Backstay Adjuster is used on small keelboats with splitversion of the split backstay adjuster A Backstay adjusterHCI025110345BCC.NGHCI040160385BCC.NG backstay systems. Pinching the wiresuses a doubling wire running through HCI035130345BCC.NGHCI045160385BCC.NG together tightens the backstay anda wire block for a purchase of 8:1.increases headstay tension to flatten the genoa, decrease weather helm, and stabilize the rig in heavy air.6:1A AB B ABCFD E6:1 Double-ended Split: This double-endedDouble-acting Hydraulic Backstay Adjusters:split backstay system leads lines forwardThese powerful systems deliver oil when to cam cleats mounted just ahead of thethe handle is pushed and pulled, delivering helmsman so adjustments can be madeoil twice as fast as single-acting pumpsfrom either side of the boat. an excellent choice for racer/cruisers. 267"