How do you measure a genoa sail?

Hoist your tape measure on your regular genoa halyard and measure to your regular tack fitting. If you want a 150% genoa, measure 1.5 x J from the tack fitting to the rail. Working from this position establish the minimum and maximum leach and foot dimensions.

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 are sail Luffs measured?

While the sail is still laid out go to the Tack and lay the tape along the luff of the sail as if you were extending the edge downward. Draw an imaginary line to the intersection of where the Luff and Foot would meet normally, this is the measurement you need.

What is a number 3 genoa?

3 genoa, the variations in size tend to become minimal. In almost all cases, a good No. 3 is a full length luff sail with an LP in the 100% range. This sail is a real work horse in the inventory and is usually added before a No.

What is a Code 0 sail?

A code zero is strictly a downwind sail.

A code zero is often classified as a spinnaker in terms of racing, hence the restriction on the length of the mid-girth, but it's not a true downwind sail. If you're going downwind, you'll use either a symmetrical or asymmetrical spinnaker.

What is a #1 genoa?

Genoas are classified by their size; a modern number 1 genoa would typically be approximately 155%, but historically number 1 genoas have been as large as 180%. Number 2 genoas are generally in the range of 125–140%. Working jibs are also defined by the same measure, typically 100% or less of the foretriangle.

What's the difference between a jib and a genoa?

A jib is a foresail that does not extend aft beyond the mast; a genoa, on the other hand, is larger and will overlap the mast and part of the mainsail. A jib sail is used for strong winds and is easy to handle, while the genoa is perfect for downwind sailing in light winds.

How do you measure the height of a sailboat?

How to Measure Your Boat for Transport

1. Overall Length is measured from the tip of the bow to the center of the stern. ...
2. Overall Height is measured from the bottom of the keel to the highest non-removable part of the boat.
3. Beam is measured from the widest point of the boat, including the rub-rail.

What size jib do I need?

The jib size as expressed as a percent is found by dividing the "LP"(luff perpendicular) by the "J"(distance from the front of the mast to headstay along the deck) dimension for that particular boat. For example if the LP was 15' and the J was 10' then 15/10= 1.5.

What are the numbers on sails?

There are four types of sail numbers, and they all get issued by different parties:

• Factory numbers - issued by the builder.
• Class numbers - issued by the class association.
• International numbers - issued by the national authority.
• Creative numbers - issued by you.

How do you calculate sail load?

A: The load on a sail is proportional to the sail area times windspeed squared. The formula is: (sail area [in ft2] x windspeed2 [in knots]) coefficient = load. In our shop we use a coefficient of 0.00431. For a 350ft2 sail in 30 knots this yields a load of 1,358lb.

What is a good comfort ratio for a sailboat?

You can use the following guidelines to interpret comfort ratio results: numbers below 20 indicate a lightweight racing boat; 20 to 30 indicates a coastal cruiser; 30 to 40 indicates a moderate bluewater cruising boat; 50 to 60 indicates a heavy bluewater boat; and over 60 indicates an extremely heavy bluewater boat.

What is the correct way to measure the overall length of a boat?

Length overall is measured from the tip of the bow in a straight line to the stern of the pleasure craft, including any rear deck extensions (platforms). Bow sprits; rudders; outboard motors and motor brackets; handles; and other fittings and attachments are not included in the measurement.

How do you determine your mast height?

As a general rule of thumb, the height of a boat's mast will be somewhere between 1.25 to 1.35 times the boat's length, for an average of about 1.3 times the length overall (LOA) of the boat. An aspect of 2.5 or lower will be a low-aspect rig; above that is considered a high-aspect ratio.

Is a genoa the same as a spinnaker?

is that spinnaker is (nautical) a supplemental sail to the main sail, especially a triangular one, used on yachts for running before the wind while genoa is (nautical) a staysail that resembles a jib but extends aft beyond the mast.

Why is a genoa sail called that?

It is a large foresail that reaches aft past the mast and extends beyond the luff of the mainsail. Mediterranean sailors would use the word genoa for the foresail regardless of its reach.

What is the difference between a spinnaker and a genoa sail?

Unlike a spinnaker, a gennaker isn't symmetric. It's asymmetric like a genoa. It is however rigged like a spinnaker; it's not attached to the forestay (like a jib or a genoa). It's a downwind sail, and a cross between the genoa and the spinnaker (hence the name).

What is a number 4 jib?

# 4 Jib. Reduced size Jib for use when the mainsail is reefed or nearly reefed. This sail is short of maximum luff length and has a reduced foot length to allow effective steering in large waves and reduce mainsail backwind. Heavy Weather Jib.

What is a code 2 sail?

Code 2 is a medium air running sail, used for apparent wind angles over 90 degrees. Code 3 is a medium air reaching sail, used for apparent wind angles near 90 degrees. Code 4 is a heavy air running sail, used in the heaviest winds normally expected.

What is a number 2 jib?

size matters. The sail area varies from boat to boat but is a 100% jib just passes before the mast on a tack, then a #1 headsail would be about 150% area, #2 is about 135%, #3 is 100 to 110% of jib, #4 is about 80% and #5 is small, 35% or so.

What is an A5 sail?

A5's are an ocean racing sail that is also called a “Storm Spinnaker or Chicken Chute” because of their small size. The sail has no shoulders and has an all-purpose shape geared more for running than reaching; most boats would heel too much with so much wind on the beam.

What is an A3 sail?

The A3 is the choice for reaching in medium air. It is a full size sail made of medium weight material. The sail is designed flatter than the A2 to improve reaching but with a longer luff than the A1 to sail broader angles in moderate breeze.