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Home > Resources > Rig Specification Diagram For Sailboats: Mainsail & Headsail

Rig Specification Diagram For Sailboats: Mainsail & Headsail

30 December 2020

Ask Precision Sails , Design , Featuring - Partners , Headsail , Mainsail , Measurements , Sails , Technical Tags: Furling , Headsail , Mainsail , Precision Sails , rig , Sails , Specifications , Specs

Sailboat Rig Specs: Precision Sails Defined

The above infographic shows how Precision Sails label sailboat rig specifications. Continue reading below to see definitions and basic how-to tips on how to measure them below. Rig specs are important for designing a sail suited for your applications and boat. When you decide to get a custom sail from Precision, in most cases, you will be taking your own boats measurements. So it’s important to know about rig specs!

One thing we tell sailors here at precision is “The effort you put into measuring really does translate into the quality of sail you get” If quality measurements are given to designers, it allows them to create an excellent performing sail. It’s essential that good information is passed on to the designers when they create your sail.

The more information you can give to us, the better. One detail we strive to get right with sailors is the sailboats measurements. Taking your own sail boats measurements is an imperative part of creating a custom sail.

Photographs are also a handy tool. They let our designers understand your rigs better and can make suggestions and improvements.

Sometimes sailors think sails are like Lego, or the marine equivalent of a Honda Civic car part, where you can just swap out sails like its nothing. But this isn’t further from the truth. Sailboats are handmade. There can be many differences from one model to the next. Your boat might not be fresh out of the boatyard. It might be 36 or more years old, all this time equates to the boat changing, modifications being made, new parts being installed, break in periods, different maintenance intervals. There are a whole slew of reasons why your boat’s rig specs could be, and probably are, different from the next. This is the main reason we are so thorough with our measurement forms and design process.

Mainsail Rig Specs

P – Maximum Mainsail Hoist Length (Maximum luff): On the main halyard, hoist a measuring tape measure until it stops without jamming the halyard into the shiv. Measure straight down along the mast to the top of the boom at the tack. Disconnect Mainsail from Halyard. Be sure the boom is in the normal sailing position.

E – Maximum Foot Length: Measure from the aft face of the mast to the shackle of the outhaul. Make sure the outhaul is pulled back to it’s tightest position. When you get a maximum foot length we are not actually going to design the sail exactly to that length but rather a couple inches shorter. This allows you to adjust your outhull and not have your adjustments pushed against the shiv at the end of the boom, as well as changing tension in the sail.

Backstay Measurement: This measurement serves as a guide so we know how far the leech of your sail can be pushed without it overlapping the backstay. Sometimes you want this for certain performance reasons, but most cruisers do not want it to overlap, because it results in less wear.

Headsail Rig Specs

I – Foretriangle Height: Measure from the top of the halyard to the side deck on the forward side of the mast.

J – Foretriangle Base: Measure along deck from the forestay to the Forward face of mast. The J measurement is just a secondary check to make sure nothing has been changed over the years and there’s no surprises.

1. First Hank: Measure from tack to the first hank position on headstay wire above turnbuckle.

2. Maximum Luff Measurement: Measure from top of halyard to the bearing point of tack fitting

3. Waterline to Forestay: At the bow, measure the vertical distance from the waterline up to the intersection of the deck and forestay.

4. Waterline to Base: At the front of the mast, measure the vertical distance from the waterline up to the deck.

5. Headstay to Forward Track: Measure from tack attachment on deck to the forward edge of the headsail track you will be sheeting to.

Furling Head Sails

Headsail rig dimensions change slightly with a furling unit. The following videos do a good job of displaying the process of taking the measurements.

Furling drum height: Measure from the deck to the location of the tack attachment point on your furling drum. Measure the pennant separately.

After you get us your measurements. We will start customizing the design of your sail. There will be a consultation during the design process. We get you involved with this process because there are several things you can adjust for your sail – how far do you want the clew off the deck, where do you want the clew to sit and any thing else you might think of.

Put the knowledge you just gained into good use and take some good measurements! If you’re in need of a sail request a quote!

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Sailboat Rigging Specifications: Everything You Need to Know

by Emma Sullivan | Aug 1, 2023 | Sailboat Maintenance

Short answer: Sailboat rigging specifications

Sailboat rigging specifications refer to the measurements and details of the various components that make up a sailboat’s rig. This includes the type and size of the standing rigging (such as shrouds and stays), running rigging (such as halyards and sheets), mast height, boom length, and sail dimensions. These specifications are essential for proper performance, safety, and handling of a sailboat.

1) Understanding Sailboat Rigging Specifications: A Comprehensive Guide

Understanding Sailboat Rigging Specifications: A Comprehensive Guide

Sailing enthusiasts often find themselves entranced by the beauty and grace of a sailboat slicing through the water, powered solely by the wind . But behind every successful sailboat is a well-designed rigging system that plays a crucial role in its performance and safety. In this comprehensive guide, we will delve into the world of sailboat rigging specifications, unraveling the intricacies and shedding light on the key aspects every sailor should understand.

To embark on this journey of unraveling sailboat rigging specifications, one must first comprehend their fundamental purpose. Rigging refers to the various components that support and control the sails, enhancing their efficiency in harnessing wind power. It comprises intricate networks of wires, ropes, blocks, pulleys, and fittings meticulously designed to distribute loads evenly across the hull while enabling precise control over sail adjustments.

The importance of understanding these specifications cannot be overstated. Rigging functions as an interconnected system where even slight adjustments can have a profound impact on sailing performance . Familiarity with rigging specifications empowers sailors to optimize their boat’s performance while ensuring safe navigation under diverse weather conditions.

Let’s dive deeper into some essential elements that make up a sailboat ‘s rigging specification:

1) Standing Rigging: The standing rigging forms the backbone of any sailboat ‘s rigging system. It consists predominantly of stainless steel wire cables known as ‘stays’ or ‘shrouds,’ which hold up the mast and distribute its loads across multiple points on the hull. Understanding how factors like wire diameter (gauge), construction (1×19 or 7×7), material grade (316 or 304 stainless steel), and tension affect overall stability plays a vital role in maintaining a balanced vessel capable of handling varying wind conditions.

2) Running Rigging: Unlike standing rigging that remains static during normal sailing operations, running rigging controls various sail adjustments in response to wind conditions. It includes halyards, sheets, and control lines that enable raising and lowering sails, trimming them for maximum efficiency, and altering boom positions. Knowing the properties of different ropes (known as lines) like rope material (nylon, polyester, or Dyneema), diameter, and construction allows sailors to optimize their boat’s performance while ensuring ease of handling.

3) Sail Controls: Sail controls encompass a variety of mechanisms essential for regulating the shape and tension of the sails. Devices such as sail tracks, winches, blocks, travelers, and cleats collaborate harmoniously with rigging components to achieve precise control over sail shape, twist, camber, draft position – all crucial factors influencing both speed and safety. Familiarity with these specifications enables sailors to adeptly adjust their sails’ performance based on wind strength and direction.

4) Safety Considerations: Rigging specifications hold a critical role in ensuring safety during sailing ventures. Inspecting the rigging thoroughly before setting sail is imperative. Checking for corrosion or wear on wire cables, fraying on ropes or lines can help prevent disastrous failures mid-journey. Additionally, understanding load limits associated with each component guarantees sailors neither underload nor overload any part of their rigging system.

By now it should be evident that understanding sailboat rigging specifications is indispensable for every sailor aiming to unlock their vessel’s true potential while prioritizing safety. With constant advancements in materials technology providing an array of options for upgrading rigging systems tailored to specific sailing needs – from club racing to bluewater cruising – keeping abreast of new developments becomes even more crucial.

Maintaining a well-maintained rigging system is not merely about technicalities; it represents an art form that requires skillful orchestration by blending engineering prowess with a deep appreciation for the timeless elegance embodied by these majestic vessels. So next time you set out on your sailboat, take a moment to marvel at the intricate rigging system that steers you toward adventure and understanding .

2) How to Determine the Right Sailboat Rigging Specifications for Your Vessel

In the exciting world of sailing, the rigging of your sailboat plays a crucial role in ensuring a successful, safe, and enjoyable voyage. Just like a well-tailored suit, finding the right specifications for your vessel’s rigging is essential to maximize performance on the water. Whether you’re an experienced sailor or a novice embarking on your first adventure, understanding how to determine the ideal sailboat rigging specifications can make all the difference.

But fear not! We’ve got you covered with some expert tips to help you navigate through this process. Let’s dive in and unravel the mysteries behind finding the perfect rigging setup for your vessel.

1) Understand Your Boat

Before delving into determining proper sailboat rigging specifications, it’s important to comprehend your boat inside out. Consider its design, size, weight distribution, and intended use. No two boats are exactly alike, and thus each requires specific considerations when it comes to rigging .

For example, if you own a racing yacht designed for speed and agility, your rigging will likely be tuned for optimal aerodynamics while maintaining stability. On the other hand, if you have a leisurely cruising boat built for comfort and relaxation, your rigging may focus more on ease of handling without compromising safety.

2) Seek Professional Advice

While it’s tempting to rely solely on your own instincts and knowledge when determining sailboat rigging specifications, consulting a professional is highly recommended. An experienced rigger or naval architect can provide valuable insights based on their expertise and extensive background in handling various vessels.

These professionals can assess factors such as mast height/length ratio (aspect ratio), headstay tension requirements, shroud angles/tensions (depending on single or multiple spreaders), boom height relative to deck level – just to name a few critical parameters that contribute to successful sailboat performance.

3) Analyze Sail Plan

Your boat’s unique characteristics should be accounted for when analyzing the sail plan. Consider the number and types of sails you have or plan to use—main, jib, genoa, or spinnaker—and their respective sizes and geometries. The size and positioning of your sail ‘s luff length, foot length, and clew height will influence rigging decisions.

By understanding the relationship between your vessel’s sail plan and rigging, you can optimize control and response while sailing in various wind conditions. For instance, a high-performance racing yacht may require a more powerful rig with adjustable backstays or hydraulic tensioners to handle large headsails effectively.

4) Safety First

While we all love chasing speed on the water, it’s crucial not to neglect safety considerations when determining rigging specifications. Overloading the rigging beyond its limits can lead to disastrous consequences. Carefully analyze the breaking load ratings of wires/ropes and fittings used in your sailboat’s rig system.

Additionally, regular inspections and maintenance are paramount to detect any potential weaknesses before they become serious issues during your sailing adventures . Never compromise safety for performance gains; instead, strike a balance between both aspects for an enjoyable and secure experience on board.

5) Experiment & Fine-Tune

When it comes to sailboat rigging specifications, finding the perfect setup might require some trial-and-error experimentation combined with meticulous fine-tuning. Keep track of changes made and their effect on different sailing conditions.

Don’t be afraid to reach out to other sailors within your community who might have similar vessels or experiences as they can offer valuable suggestions based on their firsthand encounters. Joining online forums or attending boat shows/seminars can also provide opportunities for networking with like-minded enthusiasts eager to share insights into optimizing sailboat rigging setups.

In conclusion, determining the right sailboat rigging specifications is an art that combines science, experience, and personal preferences. By thoroughly understanding your boat ‘s characteristics, seeking professional advice, analyzing your sail plan, prioritizing safety, and embracing experimentation, you can find the perfect balance that suits your vessel’s needs. So, hoist the sails high and set off on unforgettable sailing adventures with confidence and finesse!

3) Step-by-Step Process: Setting Sailboat Rigging Specifications like a Pro

Title: Mastering the Art of Setting Sailboat Rigging Specifications: A Professional’s Step-by-Step Process

Introduction: Setting sail on a mesmerizing adventure calls for meticulous attention to detail when it comes to sailboat rigging. Even the slightest miscalculation or oversight can have a significant impact on safety, performance, and overall sailing experience. In this article, we unveil a comprehensive step-by-step process that will empower you to set sailboat rigging specifications like a true professional – ensuring smooth navigation and maximizing your boat’s potential. So, fasten your seatbelts (or should we say lifelines), as we embark on this exciting journey!

1) Understanding the Basics: Before diving into the specifics, let’s brush up our understanding of sailboat rigging. Sailboat rigging refers to the collection of intricate systems that support and control the sails aboard a boat . It includes elements such as mast, shrouds, stays, halyards, sheets, and various fittings responsible for tensioning and maneuvering sails .

2) Inspection is Key: To begin our step-by-step process, inspect your entire sailboat meticulously. Look out for signs of wear and tear in the hardware components including shackles, turnbuckles, blocks, cleats – anything that plays a crucial role in securing your rigging. Ensure all fixings are tight and secure; any loose connections can be disastrous while hoisting sails in rough waters .

3) Evaluate the Lines: Next up is evaluating your lines – halyards and sheets. Check for degradation caused by exposure to UV radiation or harsh weather conditions . Replace worn-out lines promptly as frail ropes pose great risks during maneuvers when under high loads.

4) Determine Your Sailing Style: Now it’s time to assess your unique sailing style! Are you an adrenaline-seeking racer or more inclined towards leisurely cruising? This assessment helps understand the necessary adjustments required in rigging setup. Racers typically prefer minimal weight and maximum control, while cruisers prioritize ease of handling and comfort. Knowing your preference will allow you to fine-tune your rigging specifications accordingly.

5) Measurements That Matter: Precise measurements play a vital role in achieving the desired rigging tension and performance. Carefully measure the heights of your mast, boom, and other essential spars to ensure proper alignment during installation . Always refer to manufacturer guidelines for recommended measurements as they vary across different sailboats.

6) Understanding Tension: To create optimal sail shape and performance, understanding tension is crucial. Referred to as tuning the rig, setting proper tension in shrouds and stays allows for controlled sail draft and minimizes distortion under varying wind conditions. Consult professional tuning guides or seek assistance from sailing experts if needed; mastering this skill could significantly impact your boat’s overall stability and speed.

7) Partnering with Professionals: Suppose you find yourself overwhelmed by the complex world of sailboat rigging specifications. In that case, partnering with professionals can be an excellent way to gain valuable insights and guidance specific to your boat’s make and model. Rigging specialists possess extensive knowledge regarding different components, methodologies, and cutting-edge advancements in the industry – guiding you towards optimal rigging configurations tailored to suit your needs.

8) Going Beyond Theory: Putting theoretical knowledge into practice through experimentation is essential when it comes to refining sailboat rigging specifications like a pro. Head out on shorter cruises initially where you can gradually fine-tune adjustments based on real-world sailing experiences . This hands-on approach ensures you become intimately familiar with your boat ‘s behavior under various wind conditions – turning you into a confident skipper who knows their vessel inside out.

Conclusion: Rigging a sailboat may seem daunting but breaking it down into manageable steps demystifies this intricate process. By understanding the basics, inspecting meticulously, evaluating lines, accounting for sailing style, measuring accurately, tensioning skillfully, seeking professional guidance when needed, and continuously experimenting, you’ll be well on your way to becoming a pro at setting sailboat rigging specifications. So go ahead – seize the wind and waves with confidence as you embark on unforgettable journeys aboard your perfectly rigged vessel !

4) FAQs about Sailboat Rigging Specifications Answered

When it comes to sailboat rigging, there are lots of questions that may arise. Understanding the specifications and requirements can be a bit confusing for beginners and even experienced sailors. Fear not! We have compiled some frequently asked questions about sailboat rigging specifications to provide you with comprehensive answers.

1. What are sailboat rigging specifications? Sailboat rigging specifications refer to the guidelines and requirements set for the rigging components on a boat. It includes details such as the type and size of wire used, fittings, tensions, and other important measurements needed to ensure the stability and safety of your sailboat’s mast and sails.

2. Which factors determine the sailboat’s rigging specifications? Several factors come into play when determining sailboat rigging specifications: boat size, displacement, type of sailing (cruising or racing), mast height, length overall, beam width, keel design, mast construction material (aluminum or carbon fiber), among other considerations. Different boats will have different specific requirements based on these factors.

3. Why is it important to adhere to proper sailboat rigging specifications? Adhering to proper sailboat rigging specifications is crucial for maintaining safety while at sea. Rigging components are responsible for supporting the mast and sails in changing weather conditions and intense pressures caused by wind. Without adhering to appropriate specifications, the integrity of your rig could compromise stability or even lead to catastrophic failures like broken masts or torn sails .

4. How often should I inspect my sailboat’s rigging ? Regular inspections of your sailboat’s rigging are essential for identifying any signs of wear or damage which could lead to failure. The frequency of inspections depends on various factors such as how often you use your boat, sailing conditions (rough or calm waters), saltwater exposure (corrosion risks), and age of components. Most experts recommend at least an annual rig inspection, but it’s always a good idea to consult your boat manufacturer or a professional rigger for specific guidance.

5. Can I upgrade my sailboat’s rigging specifications? Yes, upgrading a sailboat’s rigging is possible and sometimes even necessary. Upgrading can improve performance, reduce weight aloft, increase durability, and enhance safety. However, determining the appropriate upgrades requires careful evaluation of your boat ‘s characteristics and intended use. Consulting with experienced sailors or professional riggers will help you make informed decisions about potential upgrades.

6. What are some common signs of worn-out or damaged rigging components? There are several signs that indicate worn-out or damaged rigging components: loose wires or strands, broken strands, rust or corrosion on fittings and wire surfaces, elongation/stretching of wire cables beyond their original length, fraying or chafing of cables near attachment points. Recognizing these symptoms early allows for prompt replacement before they compromise the structural integrity of your sailboat.

In conclusion, understanding sailboat rigging specifications is crucial for the safety and longevity of your vessel. Adhering to proper specifications not only ensures stability but also minimizes the risk of failures while sailing. Regular inspections and timely replacements are key to maintaining reliable rigging. Remember to seek advice from professionals when making changes or upgrades to ensure you choose the right specifications for your boat . Keep sailing safe and enjoy the adventure!

5) The Importance of Sailboat Rigging Specifications: Ensuring Safety and Performance

When it comes to sailboats, safety and performance are paramount. One crucial aspect that often gets overlooked is the rigging specifications. Rigging refers to the system of ropes, wires, and hardware that support and control the sails, ensuring smooth navigation on the water . While it may seem like a mundane technicality, proper sailboat rigging specifications play a pivotal role in both the safety of the crew and the boat’s overall performance.

First and foremost, sailboat rigging specifications are essential for ensuring the safety of everyone onboard. A well-maintained and correctly installed rigging system reduces the risk of accidents, such as mast failure or rig collapse. Sailboats can encounter powerful winds and turbulent waters that put immense strain on their rigging. With precise specifications, sailors can have peace of mind knowing that their boat’s rigging is up to par and capable of withstanding challenging conditions.

Additionally, sailboat rigging specifications are crucial for optimizing performance on the water. An improperly rigged boat can experience inefficiencies in sail trim, resulting in decreased speed and maneuverability. Precision is key when it comes to adjusting tensions in various parts of a sailing vessel’s rigging system – from shrouds and stays to halyards and sheets – as these adjustments directly impact how efficiently a boat harnesses wind power for propulsion.

Not only do accurate sailboat rigging specifications enhance a boat’s speed potential but they also contribute to improved handling characteristics. When every element of the rigging is properly tensioned according to manufacturer recommendations or customized preferences, sailors have better control over their vessel’s stability both while cruising or racing competitively.

Furthermore, maintaining appropriate sailboat rigging specifications aids in prolonging the lifespan of an entire sailing craft. Regular inspections will help identify any signs of wear or damage on hardware components such as clevis pins, turnbuckles, or swage fittings; thus allowing timely replacements before they lead to catastrophic failures. Moreover, old or worn-out rigging can gradually cause stress points to develop on the mast, deck, and hull – compromising structural integrity over time. With meticulous attention to detail and adherence to specifications, sailboat owners can prevent costly repairs or potentially life-threatening situations .

Aside from safety and performance benefits, adhering to sailboat rigging specifications also demonstrates a high level of professionalism. Whether you are an experienced sailor or a novice boat owner, consulting and complying with manufacturer guidelines or hiring expert riggers showcases a deep understanding and respect for the intricate mechanics of sailing vessels. It exemplifies a commitment towards mastering the art of sailing and upholding industry standards.

In conclusion, sailboat rigging specifications might appear insignificant at first glance; however, their importance cannot be underestimated when it comes to safety, performance optimization, vessel longevity, and professional responsibility. By ensuring that every aspect of a sailboat’s rigging complies with established guidelines or customized preferences within safe parameters provided by manufacturers and experts alike — sailors can enjoy not only smooth-sailing experiences but also preserve the overall value of their prized watercraft. So before setting off on your next nautical adventure, take the time to pay attention to your sailboat’s rigging specifications – it could make all the difference in creating a memorable voyage while safeguarding everyone onboard.

6) Top Factors to Consider when Choosing Sailboat Rigging Specifications

When it comes to sailboat rigging specifications, there are several factors that every sailor should consider before making a decision. The rigging plays a crucial role in the performance and safety of your sailboat, so choosing the right specifications is paramount. In this article, we will outline the top factors to consider when selecting sailboat riggin…

1) Type of Sailboat : The first factor to consider is the type of sailboat you own or plan to purchase. Different types of sailboats have different rigging requirements. For example, a racing yacht would require a more sophisticated and adjustable rigging system compared to a small pleasure cruiser. Understanding your sailboat’s design and intended use will help you narrow down your options.

2) Material: The material used for the rigging greatly impacts its durability and performance. Stainless steel is widely regarded as the best choice due to its resistance to corrosion and high tensile strength. However, there are different grades of stainless steel, such as 316 marine-grade or 304 structural-grade, each offering varying levels of durability and cost-effectiveness.

3) Size and Diameter: Choosing the appropriate size and diameter for your sailboat’s rigging is crucial. It is important to find a balance between strength and weight. Thicker rigging provides more strength but adds unnecessary weight that may impact sailing performance . On the other hand, skimping on thickness compromises safety during heavy winds or rough seas.

4) Rig Configuration: Consider how you want your sailboat rigged – whether it’s a single mast with one main sail or multiple masts with various sails. The type of rig configuration affects not only your boat ‘s maneuverability but also its overall complexity and maintenance requirements.

5) Cost: While it’s tempting to opt for cheaper options, remember that quality always comes at a price. Investing in high-quality rigging may save you money in the long run by minimizing maintenance costs or potential failures. However, this doesn’t mean you have to break the bank – finding a balance between quality and cost-effectiveness is key.

6) Expert Advice: Finally, consulting with industry professionals or experienced sailors can provide valuable insights before finalizing your rigging specifications. They can offer advice based on their expertise and personal experiences, helping you navigate the vast array of choices in the market.

In conclusion, sailboat rigging specifications should not be taken lightly. Considering factors such as sailboat type , material, size and diameter, rig configuration, cost, and seeking expert advice will ensure that your sailboat’s rigging meets your specific needs. By carefully assessing these factors, you can set sail with confidence knowing that your rigging is both reliable and efficient.

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Rig Dimensions

The following abbreviations are often used to describe various measurements on a sailboat. Precise technical definitions exist for each abbreviation, but the following is a list of simple descriptions.

If you would like to link to or reprint this article please contact  [email protected] .

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SAIL PLAN DIMENSIONS

Figure out your rig dimensions when it comes to your sails.

The basic rig dimension for a yacht are generally understood. However, there are some differences in how some sailors describe these dimensions. Here is how we define them at North Sails.

I – Height of Foretriangle Elevation of Forestay, measured down to elevation of main shrouds at sheer line.

J – Base of Foretriangle Horizontal distance measured from front face of mast at deck to position of headstay at sheer line.

P – Mainsail Hoist Elevation of upper mast band or maximum main halyard position, measured down to lower mast band or top of boom.

E- Mainsail Foot Horizontal distance measured from aft face of mast at top of boom to boom band or maximum outhaul position.

Is – Height of Inner Foretriangle Elevation of Forestay, measured down to elevation of main shrouds at sheer line.

Js – Base of Inner Foretriangle Horizontal distance measured from front face of mast at deck to position of inner headstay at sheer line.

Py – Mizzen Mainsail Hoist Elevation of upper mast band or maximum main halyard position, measured down to lower mast band or top of boom.

Ey – Mizzen Mainsail Foot Horizontal distance measured from aft face of mizzen mast at top of boom to boom band or maximum outhaul position.

ISP – Elevation of Spinnaker Halyard Measured down to elevation of main shrouds at sheer line.

SPL – Spinnaker Pole Length

STL – Spinnaker Tack Length Horizontal distance measured from front face of mast at deck, forward and horizontally to position of spinnaker tack attachment point.

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Sailboat Rig Dimensions

I = Height of headstay termination above the sheer line. J = Distance between the headstay termination at the deck and the front of the mast at the sheer line. P = Distance between black bands on the mast, or the maximum luff length of the main. E = Distance between black bands on the boom, or the maximum foot length of the main. PY & EY are similar to P & E , but indicate mizzen dimensions.

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Guide to Laser Sail and Rig Sizes

Over 200,000 Laser sailboats have been built over the last 40 years, more than most other small dinghy sailboats. In this article we are going to answer one of the most common questions we get: What size rig do I have?  This will help answer what size sail and/or rig you already have and what size sail and/or rig you need to purchase to update your Laser. 

What size rig / sail do I have? Standard vs. Radial vs 4.7 Explained

The Laser sailboat has had a number of different rig sizes, with the intention of making the boat sailable by a wide range of sailors (and different sailor weights) by simply swapping out the lower mast section and sail while keeping all other components the same. There are currently three different rig sizes and they are commonly referred to as 'Standard', 'Radial' and '4.7'. Below you will find an image that shows the three rigs side by side, and in the following section we'll explain each one.

Laser Standard / MK2 / ILCA 7

This is the most common Laser rig size, and the original rig on the boat when it was designed. It features a 7.06 square meter sail (about 76 square feet). In 2018, the Laser Class approved a new 'Standard' sail, which is referred to as the 'MKII' or 'Mark 2' to distinguish it from the first version. The difference, among other things, is in the panels. The original 'Standard' sail featured horizontal cut panels. The new MkII sail has radial cut panels. There is no difference in size between these two versions, and as of 2020 all new Laser Standard sails are available in this updated cut.  

How to tell if you have a 'Standard' sail:  The first and most obvious way to tell if you have a 'Standard' sail is to look at the panels. If they are horizontal, it is most likely a standard sail. Next, you can measure the luff (the front edge of the sail along the mast sleeve). This measurement should be about 5130 mm or 200 inches  from the top of the sail to the bottom.

How to tell if you have a 'Standard' lower mast section:  The 'Standard' lower mast section should measure about 2865 mm or 113 inches . It is a fairly stout mast section compared to the two smaller mast sections. 

Laser Radial / ILCA 6

Originally called the 'M' rig when first designed, the Laser 'Radial' sail is smaller than the 'Standard' sail at 5.76 square meters (62 square feet). At the time, it was the only Laser sail to feature the radial cut panels, which allowed the sail to be de-powered more easily in bigh winds. Per the notes about the 'Standard' rig above, both the Standard and Radial sail feature the radial cut design. Another typical indicator of a Radial size sail are the blue panels at the tack and clew of the sail.

How to tell if you have a 'Radial' sail:  The first and most obvious way to tell if you have a 'Standard' sail is to look at the panels. If they are radial, as in emanating out from the center, it is most likely a radial sail. Next, you can measure the luff (the front edge of the sail along the mast sleeve). This measurement should be about 4560 mm or 180 inches  from the top of the sail to the bottom.

How to tell if you have a 'Radial' lower mast section:  The 'Radial' lower mast section should measure about  2262 mm or 89 inches . It is also a bit smaller in diameter than the standard section. 

Laser 4.7 / ILCA 5

The Laser 4.7 (or ILCA 5) is the smallest of the three Laser sails and was designed for young sailors just getting into Laser sailing. The 4.7 lower mast section is also different from the others in that is has a pre-bend near the boom fitting, allowing the sail to depower much easier. This is the least common Laser sail size, and if you have an old one around, chances are it is not a 4.7 sail.

How to tell if you have a '4.7' sail:  The 4.7 is similar to the old 'Standard' sail as it has cross cut panels. Many 4.7 sails also have an obvious 4.7 logo somewhere on the cloth. Next, you can measure the luff (the front edge of the sail along the mast sleeve). This measurement should be about  4080 mm or 160 inches  from the top of the sail to the bottom.

How to tell if you have a '4.7' lower mast section:  The '4.7 lower mast section has a pre-bend in it and should measure about 1810 mm or 71 inches . The bend is the easiest way to tell it apart from the others. 

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Sailboat Rig Dimension The Rig Dimension list is helpful in determining your boat's approximate sail area. Once you have determined your sail area, the figures can be used to calculate the loads generated by the sails for any given wind velocity. The loading calculations are essential to selecting gear with adequate strength for its intended application.These definitions are general enough to provide guidelines to approximate your sail area. None of the information here is guaranteed to be accurate, as boat builders often change rig dimensions without notice. You should physically measure your boat and record precise measurements to calculate accurate sail area figures. CLR Marine has over 8000 keelboats specs listed to help you select hardware or calculate loads. Use this list every time you need to determine your boat's sail area. Click on the appropriate letter to find the rig dimensions of your sailboat: HOW TO CALCULATE SAIL AREAS The following formulas will give you approximately areas for: Mainsail = (P x E) / 2 (add 10% for racing mains) 155% Genoa = (( J x I ) / 2) x 1.65 135% Genoa = (( J x I ) / 2) x 1.44 100% Jib = ( I x J ) / 2 Racing Symmetrical Spinnaker = 1.8 x J x I Racing Asymmetrical Spinnaker = 1.8 x J x I Cruising Asymmetrical Spinnaker = 1.65 x J x I  DEFINITIONS "P" is the luff length of the mainsail, measured along the aft face of the mast from the top of the boom to the highest point that the mainsail can be hoisted or black band. "E" is the foot length of the mainsail, measured along the boom from the aft face of the mast to the outermost point on the boom to which the main can be pulled or to the black band. "I" is measured along the front of mast from the genoa 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 pin to the front of the mast. "JSP" is the length of the spinnaker pole or the distance from the forward end of the bowsprit (fully extended) to the front face of the mast. "ISP" is measured form the highest spinnaker halyard to the deck. "PY" and "EY" are, respectively the luff length and foot length of the mizzen of a yawl or ketch measured in the same way as for the mainsail. "IY" is the measurement from the staysail halyard to the deck. "JY" is the measurement from the staysail stay to the front face of the mast. "LP" is the shortest distance between the clew and the luff of the genoa. Please note that the measurement rules for rig dimensions vary from class rule to class rule and from measurement rule to measurement rule. Many yacht designers use different definitions as well. These definitions are general enough to provide guidelines to approximate your sail area. Types of Sailboats Parts of a Sailboat Cruising Boats Small Sailboats Design Basics Sailboats under 30' Sailboats 30'-35 Sailboats 35'-40' Sailboats 40'-45' Sailboats 45'-50' Sailboats 50'-55' Sailboats over 55' Masts & Spars Knots, Bends & Hitches The 12v Energy Equation Electronics & Instrumentation Build Your Own Boat Buying a Used Boat Choosing Accessories Living on a Boat Cruising Offshore Sailing in the Caribbean Anchoring Skills Sailing Authors & Their Writings Mary's Journal Nautical Terms Cruising Sailboats for Sale List your Boat for Sale Here! Used Sailing Equipment for Sale Sell Your Unwanted Gear Sailing eBooks: Download them here! Your Sailboats Your Sailing Stories Your Fishing Stories Advertising What's New? Chartering a Sailboat Sail Dimensions What Sail Dimensions are Required to Calculate Sail Areas? The required sail dimensions for calculating the area of any triangular sails are usually its height and the length of its foot. But that only works for mainsails and mizzens with no roach, and jibs with a 90 degree angle at the clew - and what about high-cut headsails, spinakers and cruising chutes? Read on... 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. Yacht designers need these sail dimensions to calculate thought provoking stuff such as the sail-area/displacement ratios of their creations, and sailmakers need them before they put scissors to sailcloth. If our sailboat's sails were perfectly triangular then, as every schoolboy knows, their area would be 'half the height, times the base' - but with the possible exception of a mainsail with a straight luff, generally they're not. Here's how it works... Main and Mizzen Sail Dimensions These are almost right-angled triangles except for the curvature of the leach (the 'roach') which increases the sail area.  It's usually calculated as:~ Area = (luff x foot)/1.8, or Area = ( P x E )/1.8, where:~ 'P' is the distance along the aft face of the mast from the top of the boom to the highest point that the mainsail can be hoisted, and 'E' is the distance along the boom from the aft face of the mast to the outermost point on the boom to which the main can be pulled. For the mizzen sails on ketches and yawls , 'P' and 'E' relate to the mizzen mast and boom. For more heavily roached sails, the increased area can be accounted for by reducing the denominator in the formula to 1.6. Clearly calculating sail areas isn't going to be an exact science... Jibs, Genoas and Staysail Dimensions For a working jib that fills the fore triangle - but no more - and with a foot that's parallel to the deck, then you've got a 'proper' right-angled triangular sail, whose area is:~ Area = (luff x foot)/2, or Area = ( I x J )/2, where:~ 'I' is the distance down the front of mast from the genoa halyard to the level of the main deck, and 'J' is the distance along the deck from the headstay pin to the front of the mast. Genoas, by definition, have a clew which extends past the mast and are described by the amount by which they do so. For instance a 135% genoa has a foot 35% longer than 'J' and a 155% genoa 55% longer. Areas are calculated as follows:~ Area (135% genoa) = (1.44 x I x J )/2, and Area (155% genoa) = (1.65 x I x J )/2 High-cut Headsails But these formulae don't work for a high-cut jib with a raised clew - unless you imagine the sail turned on its side such that the luff is the base and the luff perpendicular is the height. It's still a simple calculation though, once you know the length of the luff perpendicular ( LP ), the sail area is:~ Area = (luff x luff perpendicular)/2, or Area = ( L x LP )/2, where:~ 'L' is the distance along the forestay from the headstay pin to the front of the mast, and 'LP' is the shortest distance between the clew and the luff of the genoa. Spinnaker Sail Dimensions Much like calculating foresail areas, but with different multipliers for conventional spinnakers and asymmetric spinnakers... Conventional Spinnakers Area = (0.9 x luff x foot), or Area = (0.9 x I x J ), where:~ 'I' is the distance from the highest spinnaker halyard to the deck, and 'J' is the length of the spinnaker pole. Asymmetric Spinnakers Area = (0.8 x luff x foot), or Area = (0.8 x  I  x  J ), where:~ 'I'  is the distance from the highest spinnaker halyard to the deck, and 'J'  is the distance from the front face of the mast to the attachment block for the tackline. More about Sails... Are Molded and Laminate Sails One Step Too Far for Cruising Sailors? Although woven sails are the popular choice of most cruising sailors, laminate sails and molded sails are the way to go for top performance. But how long can you expect them to last? Is Carrying Storm Sails on Your Cruising Boat Really Necessary? It's good insurance to have storm sails available in your sail locker if you are going offshore, and these are recommended fabric weights and dimensions for the storm jib and trysail Using Spinnaker Sails for Cruising without the Drama! When the wind moves aft and the lightweight genoa collapses, you need one of the spinnaker sails. But which one; conventional or asymmetric? Star cut, radial head or tri-radial? The Mainsail on a Sailboat Is a Powerful Beast and Must Be Controlled Learn how to hoist the mainsail, jibe it, tack it, trim it, reef it and control it with the main halyard, the outhaul, the mainsheet and the kicker. Is Dacron Sail Cloth Good Enough for Your Standard Cruising Sails? Whilst Dacron sail cloth is the least expensive woven fabric for standard cruising sails, do the superior qualities of the more hi-tech fabrics represent better value for money? Recent Articles Beneteau 461 Specs & Key Performance Indicators Sep 26, 24 03:27 AM Contessa 26 Sailboat Specs & Key Performance Indicators Sep 25, 24 02:46 PM The CSY 44 Mid-Cockpit Sailboat Sep 15, 24 08:18 AM Here's where to: Find  Used Sailboats for Sale... Find Used Sailing Gear for Sale... List your Sailboat for Sale... List your Used Sailing Gear... Our eBooks... A few of our Most Popular Pages... Copyright © 2024  Dick McClary  Sailboat-Cruising.com How To Measure Your Sailboat For A New Mainsail October 14, 2022 Many sailors simply pull their sail measurements off their old sails when it’s time to order a new sail . But what if your old sails were lost or destroyed? What if you weren’t happy with the performance or shape of the old sails, or if you are ordering sails for a newly built vessel that has never had sails before? In this article, we are going to discuss how to get measurements from your sailboat for a new mainsail.  In order to gather the right information to order a new mainsail, you will need to take a variety of measurements as well as collect information on details like the outhaul and the type of sail slides. Keep reading to learn everything you’ll need to know about how to take the measurements for a new mainsail from your sailboat. Types of Measurements Required for a New Mainsail There are three types of measurements that you will need to take in order to construct a new mainsail. These are the rig specs, existing mainsail measurements (if you have one), and the rig measurements. Let’s take a closer look at each of these types of measurements.  The rig specs are the first thing you’ll want to find. These are used to make sure that the sail loft has quoted you for the correct size of sail and that the measurements taken were accurate. You can get your rig specs from your boat manufacturer, online, or in your boat manual.  If you already have an existing mainsail, that will help a lot with getting the right measurements. You can compare measurements taken from the existing sail with measurements taken from your rig to make sure the new sail is cut right. You’ll need to measure the luff (leading edge of the sail), the leech (trailing edge of the sail) and the foot (bottom edge of the sail).  Lastly come the rig measurements, like the maximum luff, maximum leech, and the length of the backstay. You will also want to collect information on things like the type and size of your sail slides, and the outhaul and clew attachments. We will go over these measurements in further detail in the sections below.  Maximum Luff, Maximum Leech and Backstay Measurements The three most important measurements you will need to take from the rig are the maximum luff, maximum foot, and backstay measurements. Let’s start with the maximum luff. You take this measurement by hauling a tape measure up your mainsail halyard until you get to the top and measuring all the way down to the top of your boom. You can measure for the maximum leech the same way, except you measure from the aft end of the top of the mast down to the longest outhaul setting. While you are taking this measurement it is a good time to also measure your backstay, since you are already at the top of your mast. This helps the sailmaker know the maximum roach that the sail can have before hitting the backstay.  Outhaul, Clew Attachment and Sail Slide Measurements You have now taken all of the most important measurements for your new sail. However, there are still some more data points that need to be collected in order for you to get the best possible fit for your new sail. There are two different types of outhaul attachments, either a shackle style connection or a car style connection. Take note of what type of outhaul attachment your boat has and let your sailmaker know.  Next, it’s time to take a look at the tack connections. The sailmaker will need this data to know where to put the tack ring on the sail. In order to measure the location of the tack attachment point, measure back from the mast to the bearing point of the tack fitting and measure up from the boom to your tack bearing point. You can measure the appropriate location for the reef hooks using the same technique.   After you have finished with these measurements, you will want to take a close look at your mainsail track. The new sail will need to have slides that are appropriate for the existing track. Sail slides can come in round, flat, external, half round, or bolt rope style, where you feed the sail directly into the track. The sail slides will need to be the right style and size for your mainsail track or you won’t be able to hoist the sail. If you aren’t sure what slides are supposed to be used with your mainsail track, ask an experienced sailing friend or your sailmaker for help. If your clew attachment is a shackle, you can use the same technique to measure for the clew attachment slug.  Mast Rake and Mast Bend Measurements The final measurements that the sailmaker will need to know are the mast rake and mast bend measurements. A professional sail designer will know how to get this information from a picture taken of the side of the vessel and rig. They can also measure the mast rake by using a plumb bob.  That’s it!  A mainsail is a significant purchase that you hope to use for many years. By taking the time to measure both your old sails and your rig prior to ordering a new mainsail, you can ensure that you will get the best possible fit for your new sail. It will all be well worth it the first time you hoist your new mainsail , and watch as the perfectly shaped sail fills with wind! The Sailor’s Marketplace for Sailboats and Sails. Sell Your Sailboat Sailboats for sale. New Sailboats Used Sailboats Cruising Sailboats Racing Sailboats Sell Your Sails Sails for sail, sail manufacturers. North Sails Quantum Sails Doyle Sails UK Sailmakers Sailing Reviews Sailing Line Safety Equipment Sailing Accesories As an Amazon Associate SailTrader earns from qualifying purchases. This website uses cookies to ensure you get the best experience possible.  Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts. Sailboat Guide 2005 Seawind 1000 For Sale ‘Sea Whiskers’ Description Seller's Description Coming to market soon. Register your interest by requesting a brochure and inventory online now. Expression of Interest. 2005 Seawind 1000. Front opening saloon windows. Beautifully refurbished throughout. Internally the best Seawind 1000 on the market. All walls and bulkheads freshly painted white. Polished timber saloon table and flat areas. Completely refurbished kitchen with polished timber bench tops and new appliances. Induction cooktop. New instruments housed in polished timber cabinets. 2022 new standing rigging Tri fold security screen doors allows the saloon to be locked up. New - Rolly Tasker sails 2023 New square top main 2023 New furling Genoa 2023 New furling Screecher (retractable bow sprit) 2022 new chart plotter and instruments 2023 new epirb and safety equipment Projector for big screen TV mounted on saloon ceiling. 2022 new solar panels 4 x 340 watt 48V Water maker - 80lts /hour - new, unused. Many more features. Enquire online now to receive Brochure, Inventory and photos. Rig and Sails Auxilary power, accomodations, calculations. The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more. Classic hull speed formula: Hull Speed = 1.34 x √LWL Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL Sail Area / Displacement Ratio A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more. SA/D = SA ÷ (D ÷ 64) 2/3 SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay). D : Displacement in pounds. Ballast / Displacement Ratio A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize. Ballast / Displacement * 100 Displacement / Length Ratio A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more. D/L = (D ÷ 2240) ÷ (0.01 x LWL)³ D: Displacement of the boat in pounds. LWL: Waterline length in feet Comfort Ratio This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more. Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 ) D: Displacement of the boat in pounds LOA: Length overall in feet Beam: Width of boat at the widest point in feet Capsize Screening Formula This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more. CSV = Beam ÷ ³√(D / 64) This listing is presented by MultihullCentral.com . Visit their website for more information or to contact the seller. View on MultihullCentral.com Embed this page on your own website by copying and pasting this code. About Sailboat Guide ©2024 Sea Time Tech, LLC This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Catalina 36 MkII Tall rig Sailboat specifications. Last update: 1st April 2020 Catalina 36 MkII's main features 1995: Cruising World - Boat of the Year: Best Value Catalina 36 MkII's main dimensions Catalina 36 mkii's rig and sails, catalina 36 mkii's performances, catalina 36 mkii's auxiliary engine, catalina 36 mkii's accommodations and layout. Similar sailboats that may interest you: 478 IMAGES Sailing Boat Rig Care sailboat rig dimensions diagram Rig Specification Diagram For Sailboats: Mainsail & Headsail Pin by Adam Rea on Sailing Sail Rigs And Types The 10 Most Common Sailboats and Rigs VIDEO Square Rigs on Small Boats DIAMETERS or Rigging line sizes Sailboat Data / Sailboat Specs / Performance Calculations S3E2 HOW WE RIG OUR BOAT: A step by step guide. Ep 22 HOW WE INSPECT OUR SAILBOAT RIGGING ON OUR 44 FOOT SAILBOAT Mainsheet rigging for balanced lug sail of 12 feet skiff COMMENTS SailboatData.com SailboatData.com …is a database that contains information on over 9000 production and semi-production sailboats dating back to the late 1800's. COMPARE BOATS. To compare up to three boats at one time, click the (+) Remove a compared boat by clicking (-) FORUM. Sailboat Rig Dimensions Official Website Sailboat Rig Dimensions Database. Sailboat Rig Dimensions Database. Sail area calculations. Mainsail Area = P x E / 2. Headsail Area = (Luff x LP) / 2 (LP = shortest distance between clew and Luff) Genoa Area 150% = ( 1.5 x J x I ) / 2. Genoa Area 135% = ( 1.35 x J x I ) / 2. Rig Specification Diagram For Sailboats: Mainsail & Headsail Headsail Rig Specs. I - Foretriangle Height: Measure from the top of the halyard to the side deck on the forward side of the mast. J - Foretriangle Base: Measure along deck from the forestay to the Forward face of mast. The J measurement is just a secondary check to make sure nothing has been changed over the years and there's no surprises. Sailboat Rigging Specifications: Everything You Need to Know Sailboat rigging specifications refer to the measurements and details of the various components that make up a sailboat's rig. This includes the type and size of the standing rigging (such as shrouds and stays), running rigging (such as halyards and sheets), mast height, boom length, and sail dimensions. These specifications are essential for ... Rig Dimensions Rig Dimensions. The following abbreviations are often used to describe various measurements on a sailboat. Precise technical definitions exist for each abbreviation, but the following is a list of simple descriptions. LOA. Length Overall - overall tip-to-tip length of the boat. LWL. J/30 S.A.: Sail Area. The total combined area of the sails when sailing upwind. S.A. (reported) is the area reported by the builder. (Verses ** S.A. (100% Fore + Main Triangles) which is the area as defined by the rig measurements.) S.A. (reported) can differ depending on the size of the head sail used to calculate the S.A. Rig Dimensions The following rig dimensions designated by " I ", " J ", " P ", and " E " are needed to produce a price quote. They are convenient names to use because they are short and are understood throughout sailmaking…. " P " is the luff length of the main-sail, measured along the aft face of the mast from the top of the boom to the ... SAIL PLAN DIMENSIONS However, there are some differences in how some sailors describe these dimensions. Here is how we define them at North Sails. I - Height of Foretriangle. Elevation of Forestay, measured down to elevation of main shrouds at sheer line. J - Base of Foretriangle. Horizontal distance measured from front face of mast at deck to position of ... Sailboat Rig Dimensions Sailboat Rig Dimensions. I = Height of headstay termination above the sheer line. J = Distance between the headstay termination at the deck and the front of the mast at the sheer line. P = Distance between black bands on the mast, or the maximum luff length of the main. E = Distance between black bands on the boom, or the maximum foot length of ... Laser Sailboat Sail and Rig Sizes Laser Standard / MK2 / ILCA 7. This is the most common Laser rig size, and the original rig on the boat when it was designed. It features a 7.06 square meter sail (about 76 square feet). In 2018, the Laser Class approved a new 'Standard' sail, which is referred to as the 'MKII' or 'Mark 2' to distinguish it from the first version. SAILBOAT RIG DIMENSIONS Sailboat Rig Dimension. The Rig Dimension list is helpful in determining your boat's approximate sail area. Once you have determined your sail area, the figures can be used to calculate the loads generated by the sails for any given wind velocity. ... CLR Marine has over 8000 keelboats specs listed to help you select hardware or calculate loads ... Sailing Terms: Sailboat Types, Rigs, Uses, and Definitions June 17, 2024. Sailboats are powered by sails using the force of the wind. They are also referred to as sailing dinghies, boats, and yachts, depending on their size. Sailboats range in size, from lightweight dinghies like the Optimist dinghy (7'9") all the way up to mega yachts over 200 feet long. The length is often abbreviated as LOA (length ... CATALINA 25 The most popular sailboat (in this size range) ever built in the US. Dimensions shown here are for the standard rig (pre-1988). A swing keel version was also available: draft (max.) 5.0' (min.) 2.66'; ballast 1,500lbs; displacement 4,150 lbs. Wing keel version: draft 2.83'/.86m; ballast 1,750 lbs; displacement 4,400 lbs TALL RIG: Listed SA ... Understanding Sail Dimensions and Sail Area Calculation Primary dimensions for calculating areas of triangular sails. It's usually calculated as:~. Area = (luff x foot)/1.8, or. Area = (P x E)/1.8, where:~. 'P' is the distance along the aft face of the mast from the top of the boom to the highest point that the mainsail can be hoisted, and. 'E' is the distance along the boom from the aft face of the ... Catalina 30 MkII Tall rig The Catalina 30 MkII is a 29'11" (9.12m) cruising sailboat designed by Frank Butler (United States). She was built between 1986 and 1991 by Catalina Yachts (United States). The Tall rig version displays a taller mast and larger sail area. The Catalina 30 MkII is as well listed, on Boat-Specs.com, in Fin keel and Wing keel version (see all the versions compared). Catalina 36 MkI Tall rig The Catalina 36 MkI is a 36'4" (11.07m) cruising sailboat designed by Frank Butler (United States). She was built between 1982 and 1994 by Catalina Yachts (United States). The Tall rig version displays a taller mast and larger sail area. The Catalina 36 MkI is as well listed, on Boat-Specs.com, in Fin keel and Wing keel version (see all the versions compared). CATALINA 30 Notes. With more than 6000 sold, the Catalina 30 is one of the most successful production sailing yachts in history. During the long production run of this basic model there were a great number of variations with standard and tall rig configurations, each with a bowsprit option, and also including shoal, wing and deep fin keels. Catalina 25 Tall rig The Catalina 25 is a 25' (7.62m) cruising sailboat designed by Frank Butler (United States). She was built between 1978 and 1994 by Catalina Yachts (United States) with 5866 hulls completed. The Tall rig version displays a taller mast and larger sail area. The Catalina 25 is as well listed, on Boat-Specs.com, in Fin keel, Wing keel and Swing keel version (see all the versions compared). How To Measure Your Sailboat For A New Mainsail You'll need to measure the luff (leading edge of the sail), the leech (trailing edge of the sail) and the foot (bottom edge of the sail). Lastly come the rig measurements, like the maximum luff, maximum leech, and the length of the backstay. You will also want to collect information on things like the type and size of your sail slides, and ... J/24 S.A.: Sail Area. The total combined area of the sails when sailing upwind. S.A. (reported) is the area reported by the builder. (Verses ** S.A. (100% Fore + Main Triangles) which is the area as defined by the rig measurements.) S.A. (reported) can differ depending on the size of the head sail used to calculate the S.A. 2005 Seawind 1000 For Sale 'Sea Whiskers' Sail Area / Displacement Ratio. A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more. Formula. SA/D = SA ÷ (D ... Catalina 36 MkII Tall rig The Catalina 36 MkII is a 36'4" (11.07m) cruising sailboat designed by Frank Butler (United States). She was built between 1994 and 2006 by Catalina Yachts (United States). The Tall rig version displays a taller mast and larger sail area. She has been awarded "1995 - Cruising World - Boat of the Year: Best Value".The Catalina 36 MkII is as well listed, on Boat-Specs.com, in Fin keel and ... FARR 400 S.A.: Sail Area. The total combined area of the sails when sailing upwind. S.A. (reported) is the area reported by the builder. (Verses ** S.A. (100% Fore + Main Triangles) which is the area as defined by the rig measurements.) S.A. (reported) can differ depending on the size of the head sail used to calculate the S.A. J/70 S.A.: Sail Area. The total combined area of the sails when sailing upwind. S.A. (reported) is the area reported by the builder. (Verses ** S.A. (100% Fore + Main Triangles) which is the area as defined by the rig measurements.) S.A. (reported) can differ depending on the size of the head sail used to calculate the S.A. catamaran gulet motorboat powerboat riverboat sailboat trimaran yacht