123 1 2 3 4 Curved Track Track is often bent to follow the cabin house curve or boom radius. Sometimes track is bent vertically, ends up, to relieve tension on the sail’s leech as the traveler car moves off the boat’s centerline. To perform smoothly and carry the correct load, the traveler car’s length must suit the track radius. Each traveler car page has a chart which shows the minimum radius on which each car will ride. If the load requires a long car, but the radius will be too tight, consider using two short cars joined by a coupler. Minor bends can often be made when the track is installed. If the track requires more bend, Harken can provide horizontal, vertical, or compound curves to specification for a modest charge. If the bend is continuous, add 50 - 100 mm (2 - 4") to each end because track cannot be bent to its ends. Standard Harken Mini-Maxi and Maxi traveler cars cannot ride on vertical bends with a radius under 15.25 m (50'). Chord length Length Radius Chord depth 1. Vertical Bend: Ends Down This bend is used for mainsheet travelers mounted over the cabin house. The curve matches the crown of the cabin house and allows the track to clear the companionway hatch, but minimizes the height of the track risers. 2. Vertical Bend: Ends Up Some boats use this bend to relieve leech tension when the traveler car moves off centerline. Ends-up bends are also used for staysails. Tracks angled forward to face the clew of the sail mount on risers. 3. Horizontal Bend Horizontal bends allow the traveler to follow the radius of the boom as it swings across the boat. The track stays flat and the ends curve to the boat’s bow or stern. Sometimes horizontal bends are used for boom vangs and occasionally for staysails, especially those with booms. 4. Compound Bend Compound bends are a combination of a vertical and horizontal bend. The track curves in the horizontal plane to follow the radius of the boom, but mounts to a deck that has a slight crown. Vertical bend: ends down Vertical bend: ends up Horizontal bend Compound bend Ordering Information To order curved traveler track, please specify the following information: Check one: Boat model ________________________ Vertical bend: ends down Track part number ___________________ Vertical bend: ends up Bend part number ___________________ Horizontal bend: ends forward or aft Chord length _______________________ Compound bend: Chord depth: horizontal ______________ or radius: horizontal __________________ horizontal and vertical (ends down) Chord depth: vertical _________________ or radius: vertical ____________________ Compound bend: Horizontal and vertical (ends up) Harken does not cut track to length. *Horizontal only. Contact Harken Tech Service for vertical bends. Track Simple bend Part No. Major bend Part No. Compound bends Simple Part No. Major Part No. 2707 485* 486* — — 2709 487 488 — — 373/374/2720/2721/2725/2751 274 275 276 286 1602/R27 1527 1528 1529 1581 R27HB 1530 1531 1532 1582 R32/3159 789 790 791 576 R32HB/1706 792 793 794 577 661 795 795 795 795 Simple bend: track length of 2 m (6'63/4") or less and chord depth less than 200 mm (8"). Major bend: track length of 2.1 m (6'1011/16") or greater or chord depth of 200 mm (8") or greater. Compound bend: bend in both horizontal and vertical planes. Compound simple bend: both bends are simple bends. Compound major bend: one or both bends are major bends.
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