Publicité
Les langues disponibles
Les langues disponibles
A D J U S T M E N T S , R E C O M M E N D A T I O N S
Marks
- the mast must be placed lengthways in the boat;
- to carry out the adjustments, use the mainsail halyard in order to mea-
sure the distance to an equidistant point on either side.
Rake
- finely adjust in order to find the best "Rake/Prebend"
(see below);
- the tension of the forestay and the backstay should, if
Φ
possible, be the same as that of the shrouds and should
(angled backwards) by about 1 to 1.5°.
induce a
rake
Tension of the rigging at the masthead and on the spreaders:
1.adjust the rake with the forestay, then tighten the backstay (see sec-
tion 13.1);
2. centre the mast sideways using the cap shrouds and tighten them sym-
metrically in order to obtain an upright mast;
3.apply tension to the rear and front lower shrouds allowing a slight pre-
bend then adjust the intermediate shrouds checking the cross-section is
upright (looking along the sail track);
4. apply the final tension maintaining the same order and then carry out
checks under sail. The tension on the cap shrouds and the lower rear
shrouds should be high.
w w w . s p a r c r a f t . c o m
- e.g.: 10-metre mast: masthead
pushed back by about 20 cm.
This mast rake will determine
whether the boat has a lee
helm or a weather helm. The
greater the rake, the more
the weather helm and vice versa.
djust only for a very small amount of pre-bend on
furling masts (see instructions)
Φ
=
1 à 1,5°
13
13.1
13.2
/ 17
Publicité
