1.
Mainsail (VM-5)
When you are sailing upwind, the mainsail should be trimmed with the traveller in the
middle.
You must sheet the main so hard so that the upper tell tale is hidden on the back of
the leech.
The 3 lower tell tales are blown straight from the battens. If you do not put enough
sheet load in the main, you risk making the main too hollow and the pressure on the rudder
gets too great and, therefore, the boat drifts off.
The adjustable running backstays are set just hard enough to make the wrinkles from the
clew to the spreaders disappear. This also causes the tension from the runners to be
transmitted directly to the forestay and, therefore, the profile of the sail is kept in
the front of the headsail.
The middle shroud position on the genoa sheet track is to be at the bulkhead of the
cabin as you get a good angle on the mast.
Sailing with the spinnaker you loosen the outhaul to have enough mainsail depth in the
bottom. The kicking strap is tightened until the 2 upper battens do not "tip
over" the upper shroud.
In light airs you sheet to the middle or just to windward of the traveller. The
foot is eased so there is a lot of camber in the sail, the same with the cunningham. The
halyard is loose, just enough tension as necessary to make the small wrinkles at the mast
disappear. The running backstay is also loose and there is no tension on the checkstay and
top mast stay.
In medium airs you sheet in to the middle of the traveller. The outhaul is
tightened until near the black mark on the boom. Cunningham adjusts the camber. The
halyard tension is close to the black band at the top of the mast. The backstay has medium
tension, the checkstay has a bit tension to stabilise the mast curve. The top mast stay is
loose. Kicking strap is only used reaching or running.
In heavy airs you sheet 15 cm down on the traveller. Outhaul is set at maximum
to the black mark, cunningham adjusts the camber. Halyard max to the black band, the
backstay is set to maximum. The checkstay still adjusts the mast curve, therefore it is
tensioned a little. The mast top stay is loose. Kicking strap is only used reaching or
running.
2. Genoa 1 (VG-6)
In light airs (0-3 m/sec) you sheet approximately 20 cm from the top spreader and
15 cm from the upper shroud at the foot. The halyard is set so the wrinkles are just
removed.
In medium airs (3-8 m/sec) you sheet approximately 15 cm from the top spreader and 5 cm
from the upper shroud at the foot. Halyard tension as much as necessary to remove the
wrinkles.
In heavy airs (8- 12 m/sec) you sheet 15 from the top spreader and to the upper shroud
at the bottom. Halyard tension precisely as much as you need to remove the wrinkles.
If you are sailing in varying conditions it is very important to trim the backstay
constantly for providing maximum power to the genoa.
While beating with a no. 1 genoa it is also very important to always trim the backstay
to the desired tension and afterwards adjust the genoa halyard.
18-20 knots of true wind is the maximum for the no. 1 genoa, although this depends on
the waves; at higher wind speeds you should change to the jib.
3. Jib (VJ-4)
Due to the profile and the size the new jib is very suitable from 16-18 knots of true
wind and upwards. It is essential that the halyard tension is set as hard as it is
necessary to keep the camber permanent in the front of the sail. Otherwise you risk moving
it backwards and the jib gets a flat entry and backwinding the main with too low a halyard
tension. Regarding the sheeting, the wind and wave conditions are decisive as to how much
power you wish to have in the jib.
At 12- 15 m/sec you sheet to the top spreader. The foot has an even curve from the
forestay to the sheeting point. Y ou sheet in the Flrst holes of the genoa track. Halyard
tension precisely as much as you need to remove the wrinkles. Sheet so hard, so the leech
just touches the downer shroud at the leech line stop, close to the velcro tape.
In heavy conditions ( 15-20 m/sec) you sheet 10 cm from the top spreader. The foot is
tight from tack to clew. You sheet 1 or 2 holes back on the genoa track. Halyard tension
precisely as much as you need to remove the wrinkles.
4. Spinnaker (VSM-5 and VSI-4)
We have changed the opinion of many people by sailing with the max class spinnaker that
is used both as a reaching and running spinnaker. We have designed a special running
spinnaker with a big head, lots of broad seaming in the middle and big shoulders SQ VQU
really can run "dead downwind" with the sail. The spinnaker pole is at 900 on
the mast in medium airs, to avoid the spinnaker being covered by the main and becoming
ineffective. Leeward barberhaul is tensioned until there is 10- 15 cm between the
spinnaker sheet and the mainsail boom.
While reaching with the little class spinnaker (VSI-4) the spinnaker pole must not come
closer to the forestay than 15-20 cm, otherwise you risk that the spinnaker flying to
leeward the centre line and dragging the boat to the side instead forward. This often
happens due to the running backstays being loosened before the spinnaker is set and
therefore loosens the forestay.
In light conditions (0-3 m/sec) the spinnaker pole is in the lower eye of the mast,
under 2 m/sec you can optimise your sailing angles with the small spinnaker (VSI-4).
When gybing in heavy airs you loosen the kicking strap 10 cm to protect the mast and
the rig.
You have to work a lot with the kicking strap while reaching to avoid too much pressure
on the rudder and therefore luffing.
The new spinnaker design has become fuller to avoid a "nervous" sail which
collapses at the tiniest change of the wind or trim.
The fuller design also makes it possible to use the spinnaker in light airs where you
can reach for a maximum V.M.G. Remember to lower the pole to tension the windward leech.
It is much easier to keep the small spinnaker flying than the large, which, due to its
width, often will collapse.
NORTH DIAMOND SAILMAKERS A/S
Sundkrogskaj 8
DK-2100 Copenhagen
DENMARK
Tel: +45 3920 4090