How do I determine my sail size?

How do I determine my sail size?

Hook a long tape measure up to your jib halyard (or top furling swivel on a furler see “Furler Hoist” below) just as if it were the head ring of the sail. Hoist it all the way until it stops at the top. Measure down to whatever point you intend to attach the sails tack to. This will be your MAX.

How wide is a 30 foot sailboat?

Catalina 30

Is a 30 foot sailboat big?

A 30-foot sailboat is large enough to fit everything a typical couple needs to be comfortable, with some space to spare. Almost all fiberglass sailboats in this size category have at least two places to sleep, a toilet, a shower, a stove, a sink, fresh water storage, and an inverter for battery power.

What do sail dimensions mean?

Foresail and mainsail dimensions are universally referenced with the letters ‘J’, ‘I’, ‘E’ and ‘P’ approximating to the length of the foredeck, height of the mast, length of the boom and the height of the main sail – but more accurately defined further down this page.

What is IJPE sail measurements?

“I” is measured along the front of mast from the highest halyard to the main deck. The main deck is where the deck would be if there were no deckhouse. “J” is the base of the foretriangle measured along the deck from the headstay to the mast.

What is LP on a sail?

LP is the shortest straight line distance from clew to luff. It’s expressed as a percentage of “J” (150% LP = 1.5 x J). It does no relate directly to area, but is a measure of overlap. For a given percentage of overlap, you get a much bigger sail on a boat with a long “J” dimension.

What is the J on sailboat?

“J” is the base of the foretriangle measured along the deck from the headstay to the mast. “JC” is the greater of the following three dimensions: “J”, the length of the spinnaker pole, or the maximum width of the spinnaker divided by 1.8.

What is J in sailing?

The J-Class is one of several classes deriving from the Universal Rule for racing boats. The rule was established in 1903 and rates double-masted racers (classes A through H) and single-masted racers (classes I through S). From 1914 to 1937, the rule was used to determine eligibility for the Americas Cup.

How do you measure LP on a sail?

The leech is the trailing edge. The foot is the bottom edge. Jibs and Genoas have a Luff Perpendicular (LP) that is the perpendicular distance from the luff to the clew. The LP defines the sail size in terms of percentage increase beyond the J measurement as in the following examples….Sail Measurement Assistance.