Owner`s manual

and intermediate shrouds are led over spreaders. The upper spreaders lead the shrouds out

from the mast and provide a deflection of approximately 12°, which is considered ideal.

However, the shrouds impart a side load, acting horizontally along the spreader. The

intermediates take some of this load off the mast at the upper spreader, while the lower shrouds

do the same at the lower spreader.

It is obvious that the more standing rigging that is used transversely and longitudinally, the -

stiffer the rig will be, allowing a smaller mast section, thus reducing windage.

However, the French-made Isomat spars used by CS, together with the standing rigging

described above provide a very good balance of strength and simplicity.

6.3 Tuning

Tuning involves adjusting the tension of shrouds and stays so that the mast will remain straight

under various sailing conditions and when moored.

Tuning involves two phases:

(a) Tuning at the dock or while moored

(b) Fine tuning while sailing

(a) Tuning at the Dock or While Moored

All turnbuckles should be equipped with toggles at their base as supplied be CS Yachts to

eliminate any bending load on the swage and turnbuckle threads, including both ends of the

forestay.

Start tuning the mast by ensuring that the mast is in the centre of the boat, perpendicular to the

transverse waterline. The mast is set in the forward setting at the mast step. At this point the

rubber mast collar should be set into the mast partners between the mast and deck. This is a

tight fit and can be accomplished best by fitting the collar into place as the mast is being

lowered onto the mast step. If the collar just fits into the fiberglass mast partners with the mast

heel casting 2"-3" away from the mast step, the collar will fit perfectly.

Since boats often do not level at dock due to uneven load distribution of the accommodation

plan and internal weights, slacken all shrouds fully by loosening the turnbuckles. Take the main

halyard and lead the shackle end to a point on the starboard toerail. Adjust the tension on the

halyard so that the end of the shackle just touches the toerail , then cleat the halyard. Move the

shackle to the same location on the port toerail; the end of the shackle should just touch the rail.

Lightly take up on the turnbuckles on the upper shrouds until the mast has been centred.

Now, starting at the lower shrouds, tighten their turnbuckles evenly. Repeatedly sight up the

mast track to ensure that you are not deflecting the lower part of the mast in any direction.

Next, tighten the intermediates, again, ensuring that the mast remains straight, then do the

same on the uppers. When you are sure that the mast is straight, start at the lowers and tighten

each pair of shrouds evenly, by counting the number of turns applied to each. Tighten until the

turnbuckles become difficult to turn.