Fractional, multi-spreader rig, swept spreaders, deck-stepped mast

At the crane • Read the “At the crane” section on pages 20-21. • Lift the mast and place it on the T-base. • Attach the cap shrouds, backstay, forestay and lower shrouds. • Tighten the cap shrouds, forestay and backstay hand-tight so that the mast is stayed both laterally and longitudinally. • Lower and remove the lifting strop. Move the yacht away from the crane.
Cap shroud max 25% This type of rig is very demanding on the sailor, since it is complex to tune and to handle. In general, this type of rig needs more tension in the shrouds than a rig with in-line spreaders. The tension in the forestay is affected by three components; 1. The cap shrouds 2. The backstay 3. The sheeting of the mainsail
Backstay max 20% Tuning • Check the mast rake. Adjust if necessary using toggles on the forestay. • Tension the cap shrouds to 15% of the breaking load of the wire. See the “folding rule method”, page 29. Leave the folding rule on the shroud.• Roughly straighten the mast using the lower and inter-mediate shrouds. Note that the intermediate shroud tension should be fairly low at this stage, only sufficient to keep the mast straight. Check that the mast is straight by sighting up the luff groove, all the way up from deck level. • Increase the cap shrouds tension to 20% of the breaking load of the wire. Count and make a note of the number
20° 44