Outhaul sail trim book

An outhaul is a line which is part of the running rigging of a sailboat, used to extend a sail and control the shape of the curve of the foot of the sail. Maximize sail power with this hidden mainsail control. In the book i argue that cruising boats are often lack the rigging and hardware needed to make basic trim adjustments quickly and easily, as though cruisers dont care about efficient sailing or understand the fine points. Havent seen the bethwaite book yet, but i think sail like a champion by dc gasp is one of the best books ever on how to race a sailboat. Trim tension the outhaul to flatten the mainsail for breezy conditions. Don guillette is the author of the sail trim users guide and the sail trim chart.

You would think a book entitled sail trim might actually have more than a few pages on that topic. Lower rf20711 and vcleat are positioned along the boom, as required for crew access. Oct 14, 2003 hello,\u000b\u000bim new to sailing so go easy on me. Rf5106 features an integral fairlead which retains sheet when uncleated. The continuous trimming, of your sails to power them up in lighter winds and to reduce power in stronger winds can result in significant performance gains. Run line through clew eye and fix at boom end to increase purchase to 4. Luffing is not to be confused with fluttering of the leech trailing edge of the sail if the sail is pulled in while sailing downwind the effective area of the sail is. Your north mainsail is constructed with a shelf foot. Mastbend is created by the compression induced by the backstay on a masthead boat or by a combination of backstay and running backstays on a fractionally rigged boat. It runs from the clew the back corner of the sail to the end of the boom. If the waves are big for the wind, ease the outhaul slightly to give more power.

Everything you always wanted to know about sail trim. This book is different i recommend this little book to everyone. I have been sailing \u000bmy catalina 22 since july. You got a sail with a moderate roach, four battens to support that roach, a few reefs and some sail.

Dont be afraid to let the sail out until its against the shrouds and spreaders just make sure the boom vang is on tight enough. Trim the mainsail outhaul to match the sailing winds for power and balance. The outhaul, besides simply holding the sail out, is an effective sail shape control. You may have heard the rather simplified explanation that fuller sails give a more powerful shape and flatter sails a faster shape. When you first bend on attach the mainsail to your boat, the outhaul.

In sailing the boats we can offer these general ideas and observations that will apply to the 311s through to the newest. Good sail trim can mean the difference between winning and losing a race or reaching harbor before the tide turns. Driven by the north sails design suite, the north u sail trim simulator lets you explore proper upwind trim with the full range of sail controls. An understanding of the physics of aerodynamics will help us better trim and set our sails. As shown below in 2 the outhaul line runs to a block, and a 2.

From the pages of sail magazine, comes the first new anthology in nearly 15 years on the popular subject of sail trim. That is a problem because the outhaul is one of the most important mainsail sail trim controls. One of the goals for our book, the art and science of sails, is to connect the theoretical with the practical. The outhaul on a sailboat is one of the controls, part of the boats running rigging. The asail also needs to be trimmed as twisted as possible assuming tweakers are used but the main traveller can be kept high with the sheet and vang trimmed on to keep the main from flogging. Winds were generally 1216 knots offshore resulting in smooth water and the potential for high pointing and speed. Basically, the tighter the outhaul, the flatter the bottom of the sail. The mainsheet is the most important single sail trim control on the boat. It is an excellent visual reference for what is happening aboard a sailboat when various trimming devices are used, and how they are to be used. The gladstone books are ok, but seemed a bit rudimentary last time i looked.

Sail trim mysteries explained by ralph taylor our goals today foundationfor understanding. For the fine tune use something thats low stretch and soft on the hands. Besides depth, the outhaul also changes the tightness of the lower leech. A laser taining manual callala junior sailing school. Apr 27, 2016 ease until the sail begins to luff bubble or backwind along its leading edge then trim just enough to stop luffing. With detailed instructions, illustrations, and photos, these downloadable guides are a musthave resource for every sailor. Outhaul a tighter outhaul flattens the bottom 3rd of the sail and opens lowest batten so its not hooking to windward. In the old days, your sailmaker offered you one kind of mainsail, and sailors were generally happy with the result. Tightening or slackening the outhaul can flatten or fill out the sail, shift the draft forward or aft, change leech and foot tension, and increase or decrease camber.

See more ideas about sailing, sailing terms and boat. It is normally centralised but can be hoisted to windward in light airs or to. Jan 22, 2017 in the book i argue that cruising boats are often lack the rigging and hardware needed to make basic trim adjustments quickly and easily, as though cruisers dont care about efficient sailing or understand the fine points. In light airs, we will want twist in the sail but in medium to heavy airs, we want to remove this twist and flatten the sail. Boom parts kitesurf windsurf boat accessories stand up paddle foil new equipment, used equipment, rentals, lessons, racing, kids, regatta, sail boat. His products are available through the catalina 30 ships store. Downloadable sail trim guides articles quantum sails. The physics of sailing arises from a balance of forces between the wind powering the sailing craft as it passes over its sails and the resistance by the sailing craft against being blown off course, which is provided in the water by the keel, rudder, underwater foils and other elements of the underbody of a sailboat, on ice by the runners of an ice boat, or on land by the wheels of a sail. This guide is based on an article by ian short that was first published in australian yachting, mayjune 2009. Dedakam the marvelous illustrations in this presentation are from this book. A guide for racing covers the principles of sail trim, crew. With 44 articles that have never before appeared in book form, the new book of sail trim provides concise, easytounderstand instruction in every facet of sails and sail handling. Im trying to learn how they are going to trim andor if i need to have any changes made.

This book demonstrates the skill of good sail trim with the aid of superb colour diagrams and photographs, to enable racers and cruisers alike to sail efficiently. A boom downhaul works like a cunningham by tightening the luff of the mainsail to flatten it and to move the belly of the mainsail toward the mast, which improves its. Maximize sail power with this hidden mainsail control cruising. The outhaul is a line that connects to the clew of the mainsail the ring in the lower aft corner and pulls the sail back toward the end of the boom. On most boats you have five controls to properly shape and control your mainsail. Proper sail trim is essential for both control and speed. The sail should be let out as far as possible without permitting the leading edge to luff, i. A foot of slack on the end makes the setup easy to trim while under sail and to loosen when removing the sail to head home. My boat was a c30 1981 and to get inside the boom it is near impossable to get the. Basic trim is achieved by simply easing the sail until it luffs, and. You may be surprised to know that this sail trim device can power up your.

In the last edition of the fast course book, this chapter included an extensive trim loop diagram to explain mainsail trimming. The other two are the boom vang controls leech tension and the mainsail outhaul controls foot tension. May 11, 2015 the asail also needs to be trimmed as twisted as possible assuming tweakers are used but the main traveller can be kept high with the sheet and vang trimmed on to keep the main from flogging. Trim your boat with this in mindbalance and harmony equal peak performance. All the sail trim information from all the books, videos, and articles has been boiled. You got a sail with a moderate roach, four battens to support that roach, a few reefs and some sail trim devices, like a cunningham or a flattening reef. Moderate air sail trim by stu walker as an umpire at the us match racing clinic at punda gorda i was struck by the evident need to modify sail trim to adapt to the infighting of match racing. Continue to adjust the 3 controls until the sail is drawing well and the boat is moving through the water.

In fact, it is the main control for draft depth belly. This book demystifies the skill of good sail trim with the aid of superb color diagrams and photograph, to enable racers and cruisers alike to sail efficiently and get the most out of their boats. This book explains what sail trim is all read more. Downloadable sail trim guides july 12, 2018 with detailed instructions, illustrations, and photos, these downloadable guides are a musthave resource for every sailor. The loop cycle was helpful for some people, but quite confusing for most. Sail trim ian short sails high performance racing and. Jun 09, 2018 install the fairlead cleat on the same side of the boom as where the line exits the outhaul blocks port side in the picture below. Hello,\u000b\u000bim new to sailing so go easy on me. For more on backwind prevention, see sail faster reaches with a barber haul in chapter four. Sep 01, 2018 this project is a true boom downhaul that makes it so easy to trim from the cockpit, even while under sail, that it can become a regular part of trimming the mainsail. Start with the mainsheet relatively eased and gradually trim harder once the boat is up to speed. My boat was a c30 1981 and to get inside the boom it is near impossable to get the boom end caps off without breaking one of them. Boom parts kitesurf windsurf boat accessories stand up paddle foil new equipment, used equipment, rentals. Elsewhere in the book, theres some excellent cruising trim advice, plus tips on catching a tow downwind from another.

Instead, you get 20 pages on poorly simplified and misrepresented fluid dynamics granted, i was an aerospace engineer in college, 30 pages on different kinds of boats, 15 pages about a new automated sail trim on some crazy german boat, and 2 pages that with no real explanation dictate. Once the luff halyard and foot outhaul are tensioned, bear away from the wind until the sail fills. I want to become more proficient\u000bat sailing, so i have been reading books and experimenting\u000bon my boat. In light to moderate conditions, when you need power and helm, ease the outhaul until the sail is 5075 mm from maximum tension and the foot shelf is partially relaxed. Best sail trim tactics book for racing sailing anarchy.

Sail trim ian short sails high performance racing and durable. Due to the one single large sail, the skipper must understand the need to reef earlier before the winds and the sail become unmanageable. Features a webbing strop through the clew eye, lead to internal block purchase system, exiting the underside of the boom and secured via a cam cleat. Sailing employs the windacting on sails, wingsails or kitesto propel a craft on the surface of the water sailing ship, sailboat, windsurfer, or kitesurfer, on ice or on land over a chosen course, which is often part of a larger plan of navigation a course defined with respect to the true wind direction is called a point of sail. In this article im going to explain some of the sail trim and rig adjustment tips that. This tactical advice is all mixed in with sail trim and how to get the best from your boat, which is music to the racing mans ears. For this article we are looking at a typical masthead rig with overlapping headsails. Judge the outhaul tension at the center of the boom. Sail parts good stuff happens when they work together.

Each jib and mainsail trim control boom vang, cunningham, outhaul, etc. The fairlead keeps the line captured at the boom if it gets out of hand. Once the sail set is correct for close hauled or fine reaching, the mainsheet traveller is used to quickly depower the sail in gusts, without spoiling twist. In the last edition of the fast course book, this chapter included an extensive. A guide for racing covers the principles of sail trim, crew movement techniques, maneuvers, and control systems, and gives advice on adjusting to special conditions. Fair winds, the selden group 2 3 the rig bear in mind that, as the yachts owner, you are responsible for any accidents or damage resulting from negligence or poor handling. Matched to specific boat designs, the simulator provides control over main and jib trim, including mainsheet, backstay, traveler, cunningham, jib sheet, jib lead, and jib halyard as well as the helm. The purpose of this quiz is to test your sail trim knowledge.

A boom downhaul is one of the three possible control lines for the three sides of the mainsail. Johns soontobereleased book on easy sail trim tips and techniques. Catalina 22 and similar sailboats have a short length of line attached to the bottom of the gooseneck car on the boom that ties off to a cleat at the base of the mast as. Ease the outhaul to power up your mainsail in light air or on reaches. This book does a really great job of explaining how sails work and the importance and basic goals of sail trim and proper sail shape.

Jul 26, 2018 in light airs, we will want twist in the sail but in medium to heavy airs, we want to remove this twist and flatten the sail. The new book of sail trim by ken textor, paperback. When people ask me why a particular boat goes slower or faster than its competitors the answer often comes down to who is paying constant attention to sail trim. Book description the bestillustrated manual ever on tuning the sails and rigs of. The sail helps to steer the whole sailplan, functioning a lot like a trim tab on a keel or a flap on an airplane wing. The seam which attaches the shelf foot to the sail, the bottom seam in the sail gets closer to the boom when the outhaul is tensioned or further away from the boom when the outhaul is eased. May 21, 20 once the luff halyard and foot outhaul are tensioned, bear away from the wind until the sail fills.

Mainsail trim pointers, reefing and sail care for the beneteau oceanis series the following points on mainsail trim apply both to the furling and classic mainsails we produce for beneteau usa and the oceanis line of boats. I care, but i have to admit my cruising cat doesnt have the quick access to fine trim that my performance cat had. Instead, you get 20 pages on poorly simplified and misrepresented fluid dynamics granted, i was an aerospace engineer in college, 30 pages on different kinds of boats, 15 pages about a new automated sail trim on some crazy german boat, and 2 pages that with no real. The yellow line is controlled at a vjammer block, d, pulling against a line looping around the mast e which secures the control lines, and allows them to be in easy reach when sailing. Second, the mainsheet controls the angle of attack the sails angle to the wind. Install the fairlead cleat on the same side of the boom as where the line exits the outhaul blocks port side in the picture below. Print them and keep them on your boat, reference them as needed for unusual conditions, or to teach the new guy on the boat how to approach trim. The cunningham eye or luff tension should be on quite hard to keep the draft forward in the sail and the outhaul should be tensioned quite hard to flatten the foot area completely. Sail with more speed and powerthe forgotten sail control. General rules of mainsail trim adjust halyard to just remove horizontal wrinkles adjust sheet tension so top batten is parallel to the boom adjust traveller to get the telltales flying top one most of the time adjust outhaul for correct depth check draft position, adjust halyard maybe. The tension required along the luff of the sail is a function of apparent wind velocity. We will do this by tightening the clew outhaul to flatten the foot of the sail and trim the mainsheet until the top batten lies parallel with the boom or very nearly so.

When going upwind, once twist is set using the mainsheet, the traveller is used to power or depower the boat. In smaller catboats, the cockpit is so large that getting pooped could be disastrous. If the waves are small for the wind, as in an offshore breeze, pull on the outhaul to flatten the sail and reduce drag. The line is pulled taut to the appropriate tension to provide the desired shape to the foot and then secured to a cleat on the boom.