é un bisho malo, Chema... como You and I...
Rig Dimensions
For the basic sloop there are four figures to describe the size of the rig: I, J, P and E.
I = Foretriangle Height. This is the distance up from the shear line (gunwale) regala to the top of the hoist for the highest headsail roldana de izado de la vela mas alta. From the IOR rule it is the highest of the following: the intersection of the headstay (or an extension of it) and the front edge of the mast (or an extension of it), the center of the eye for the spinnaker or jib halyard block. This is a little confusing (and why shouldn't it be?) and you may have hard time finding a sailmaker who can actually tell you what this dimension represents. J = Foretriangle Base. This the distance from the front of the mast to the point where the headstay intersects the shear.
P = Mainsail Hoist. This is the distance beween the black bands on the mast.
E = Mainsail Foot. This is the distance beween the black bands on the boom.
Mizzen sails (on yawl or ketch) are measured as mainsails with the dimensions called PY and EY.
http://dan.pfeiffer.net/boat/ratios.htm#rig
