“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 length on a sailboat
J is probably the best-known measurement on boat, since it is used to define the size of headsails. It is defined as the horizontal distance between the front side of the mast and the intersection of the forestay with the deck.
Why are J boats called J boats
The Universal Rule came into effect in 1930. The size of a yacht was determined (by waterline length) and this was shown as an alphabetical list. “J” signified yachts with a waterline length of between 75 to 87 feet. The addition of the new design Bermuda mast allowed the yachts to carry a huge sail plan.
What is the J dimension of a boat
J: This is the horizontal distance from the point where the forestay intersects with sheer line to the face of the mast. For boats that tack a headsail forward of the forestay, J will be the horizontal distance from the headsail tack point to the face of the mast.
What is LP on sailboat?
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 luff and Leech
Luff -A sail’s forward edge. The luff of the mainsail is usually hoisted up and attached to the mast. The luff of the jib is attached to the forestay. Leech – The sail’s back edge. Foot – The bottom edge of the sail.
How long is j70
J/70 is a trailerable, 6.93-metre (22.7 ft) American sailboat class designed by Alan Johnstone and first built in 2012.
How big is a j24?
Length (feet/inches): 24 Ft. Beam: 8.9 Ft. Weight of rigged boat without sails: 1,790 lbs. Draft: 4 Ft.
Are J boats good quality
Over the years, Tillotson-Pearson has established a reputation for high-quality production work, often at the leading edge of fiberglass technology, that has helped J/Boats maintain an image of quality near the top-end of the production spectrum.
How fast do J boats go?
J/125 upwind target speed is 7.8 – 8.0 knots. 10+ knots downwind is a daily occurrence. In fact we know of no other boat of its type and length that’s faster. Finding crew for weeknight and Saturday races is hardly a problem when you’re first to the party.
What is the J Class rule?
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 19, the rule was used to determine eligibility for the Americas Cup.
How many J boats are there
The Johnstone family has made an undeniable mark on the sailing world. In addition to the 5,500 J/24s cruising the waves, there are over 9,500 more J/Boats, ranging from the International J/22 to the J/65, that sailing enthusiasts have bought at prices ranging from $10,000 to $2,000,000.
How big is a j80
Sailboat Description
LWL 22.0 ft Beam 8.3 ft Draft 4.9 ft Displacement 2,900 lb Ballast 1,400 lb J/Sprit 6.25 ft ISP 33 ft.
How long is J Class yacht
“J” signified yachts with a waterline length of between 75 to 87 feet.
What are the letters in sail dimension
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.
How many units is a sail
SAIL operates and owns five integrated steel plants at Bhilai, Rourkela, Durgapur, Bokaro and Burnpur (Asansol) and three special steel plants at Salem, Durgapur and Bhadravathi.
What is a code D on a sailboat
Code D is an asymmetric sail specially designed to fit any furling system. Should wind increase or should there be an unexpected emergency, you just leave the sheet and in a few seconds it rolls up.
What are sail codes
First, a quick refresher: Code sails fill the large gap between upwind sails and downwind sails, from about 65° to 135° True Wind Angle. They are free flying with a relatively high clew, sheeted like a spinnaker to an aft lead. In most cases, these sails will be furled when not in use.
What is a Cunningham on a sailboat
In sailing, a cunningham or cunningham’s eye is a type of downhaul used on a Bermuda rigged sailboat to change the shape of a sail. It is named after its inventor, Briggs Cunningham, a victorious America’s Cup skipper and yacht builder.
What are the 3 sails on a boat called
Either a jib, a genoa or a spinnaker, there are several sizes of headsails: A working jib is a smaller jib that fills the space between the mast and forestay, used in stronger winds.
What are the 3 points of a sail
- No Go Zone – this is the bit that you can’t sail in.
- Close Hauled – This is as close to the wind as you can go.
- Close Reach – Not quite as tricky as close hauled and you’ll need to let your sails about a bit.
What is the most popular J boat
The J/24 is the world’s most popular keelboat class, with over 5,500 boats built and over 50,000 people actively sailing in more than 150 fleets in 40+ countries.
Can a j70 capsize
They do not capsize except in extreme weather. A sampling of models: Harbor 20, J/22, J/70, J/80, Beneteau First 22, Sonar, and Colgate 26.
What is a J3 sail
As the J1 is a big sail, it has a wide range of use: it can go up to 120 or even 130 degrees to the wind.” The J3 , or staysail or ORC jib. The J3 is on the shortest stay, the one furthest back on the bow section. So logically it is the smallest (50 square metres).
Are J Boats Bluewater
The new J/Boats J/45, debuting in Europe at Cannes Yachting Festival 2022, is a true bluewater sailing yacht, designed and built for the sea by life-long sailors. The J/Boats and J/Composites teams have collaborated to create a special design for discerning sailors seeking an exceptional sailing experience.
How fast is a j121
With a full crew, that’s likely to be around 15 knots true wind. Doublehanded, it might be at 12 knots.