Jauge Spi

Souvent les problèmes de jauge se situent au 20 6 7 ( dimension mini => aptitude à remonter au largue)
Il faut plier le spi en 4(point d’écoute sur point d’écoute puis point de drisse sur points d’écoute et mesurer la dimension à mi hauteur
Le tissu doit être bien tendu pour la mesure

Dans les autres paragraphes il y a peu de problèmes ( à moins que cela soit un spi qui n’ait pas été conçu pour un fireball)
Si les autres mesures sont longues mais n’excèdent pas 1 cm on peut réduire la taille en trempant le spi dans l’eau salée et en le faisant sécher…

20.6.1 The spinnaker shall be a symmetrical three cornered sail. No headboard, battens or other stiffening device, other than normal woven cloth reinforcing is allowed.
20.6.2 When measuring, the sail shall be folded in half with the tack and clew laid on top of each other.
20.6.3 The length of the leeches shall not exceed 4350mm. The length of the leeches shall be taken as the distance between the highest point of the sail at the head and the lowest point of the sail on the leech, measured round the edge of the sail.

20.6.4 The length of the centre fold shall not exceed 5100mm. The centre fold length shall be taken as the distance between the head and the mid point of the foot, measured round the fold of the sail. The centre fold may be measured with the tape laid along the sail’s centreline while the sail is suspended by it’s corners.

20.6.5 The half width of the foot shall not exceed 1500mm. The half width of the foot shall be taken as the distance between the lowest points on the centrefold and the leech, measured round the foot of the sail.

20.6.6 The half width shall at no point exceed 1800mm - this measurement shall be taken at right angles to the luff.

20.6.7 The half height, half width measurement shall not be less than 1500mm. This measurement shall be found by folding the sail so that the highest point of the sail is placed directly over the centre of the tack and clew cringles - the resulting fold at half height must be made free of wrinkles and the measurement be taken round the edge of the half height fold.

20.6.8 Where the clew and the tack cringles are fixed outside the edges of the sail, the point of measurement shall be the intersection of the lines drawn along the edges of the luffs and the foot of the sail.
20.6.9 Only one spinnaker may be carried in the boat.