Symmetrical Spinnaker

For a Symmetrical Spinnaker, there are three measurements required when applying for a certificate.

Max Girth (MG): With the spinnaker folded in half, the Max Girth is two (2) times the maximum width of the sail measured from the centre fold of the sail to the luff and leach.

Luff Length (LL): shall be the distance from the projected intersection of the luff and foot with the luff line under moderate tension.

Foot (SF): is the distance from the tack to the clew measured in the shortest path on the surface of the sail