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Dinghy sailing is the activity of sailing small boats by using (1) the sails and (2) underwater foils (Daggerboard and rudder and Tiller). It also involves adjusting (3) the trim and (4) balance by changing position of the crew and Skipper or in a one person boat, just a skipper within the boat. Together with (5) 'course made good' (effective choice of route and manoeuvres), these are the five important points of dinghy sailing.
Contents
1 Development of the dinghy
1.1 Early beginnings
1.2 Planing and trapezing
1.3 Post WWII developments
1.4 Modern developments
2 Types of dinghies
3 Dinghy racing
4 List of dinghy classes
5 Reference books
6 External references
Development of the dinghy
Early beginnings
There has always been a need for small tender boats as transport to and from moored sailing ships. Together with other smaller work craft such as fishing and light cargo, small inshore craft have always been in evidence. Charles II of England had a private sailing boat presented to him when he returned from exile to England in the 17th century, and he sailed for recreation and competition.
Towards the end of the 19th century people began to use these small boats for sport and recreational sailing, utilising the opportunities for leisure afforded by the industrial revolution. Larger privately used sailing boats had developed separately, and have resulted in the yachts of today. There has been some crossover, in that the sloop sail plan was adopted as standard and most convenient by early dinghy designers.
Planing and trapezing
A Musto Skiff dinghy on the reachThe development of the sailing dinghy was helped in the early 20th century by Uffa Fox (1898-1972), an English boat designer and sailing enthusiast. He developed and contributed to many dinghy classes which are still with us nearly a century later: the Albacore, International 14, National 12, the Firefly, Flying Fifteen and the Scorpion.
He also introduced the major advance of hull shapes which can plane, and which can therefore reach beyond the usual speed limits for small sailing boats. In effect, a boat which is planing is skimming along the surface, rising up on its own bow wave. This results in less friction because of reduced waterline length, reduced displacement (the amount of water needing to be pushed aside by the boat), and reduced 'wetted area'. The power given by the sails has to overcome less resistance, and therefore speed increases dramatically.
In 1928 Uffa Fox introduced planing to an astonished racing world in his International 14 boat, the Avenger. He gained 52 first places, two seconds and three third places out of 57 race starts that year.
Another advance in dinghy sailing was introduced in the 1930s, when the technique of trapezing was introduced. This involves using the crew to provide more leverage to keep the sails vertical, by hanging outside the boat on a harness and rope attached to the 'hounds' or upper mast. As a result the boat is easier to keep upright, and the sails can deliver maximum power most of the time.
Trapezing during a race first appeared in 1934, on the Thames A Class Rater Vagabond sailed by Peter Scott (son of the famous Scott of the Antarctic), and John Winter. The owner of the boat, Beecher Moore, of Thames Sailing Club had worked on developing the technique, in discussion with Uffa Fox. Vagabond was spectacularly successful in that race, winning by four minutes.
Sadly, the innovative technique was immediately banned, and received little development until it was reintroduced on the Osprey and Fiveohfive Class (505) in 1954 by John Westell and the Flying Dutchman class in the early 1960s.
Post WWII developments
During the Second World War plywood had become a major building material for aircraft. After the war, plywood was adapted for building sailing dinghies. Two primary methods of construction were adopted: Stitch and Glue and timber framed construction. Jack Holt designed many dinghies to be built by home handymen using these construction techniques. The Mirror Dinghy was predominantly built using stitch and glue, while the Heron is an example of a boat built using plywood on a timber frame.
Modern developments
A 49er skiff in a raceAt the beginning of the 21st century, dinghy sailing is still a rapidly developing sport. It is losing its image of being expensive, time consuming and exclusive. This is because of the earlier work of pioneers such as Uffa Fox, and through the use of modern designs and techniques such as lighter hull materials (eg, fibreglass and foam sandwich hull construction, which eliminate time-consuming maintenance of wooden hulls), more responsive sail materials and design, easily transportable boats (many car-toppable), and simpler rigs such as Gennakers instead of more complex Spinnakers. These advances are more economical in time and money, and have greatly extended the appeal of dinghy sailing.
Increasingly sailing is a young person's sport, and the number of participants is mushrooming. In many dinghy clubs in the UK the adult members are sometimes outnumbered by junior members, and the balance of activities can change from mainly racing to increasingly providing training courses.
Sailing is also becoming more accessible to people with disabilities, partly through new boat designs, and generally through recognition of everybody's right to participate in all areas of life. (See the Sailability website)
In Britain and Europe dinghy sailing has also been considerably advanced by the RYA, the regulatory authority which regulates racing and which provides modular and accredited training courses for leisure and competitive sailing. A basic sailing course can be completed in several days, and participants can be sure that the training is competent and delivered in a safe setting.
Types of dinghies
Skiffs are generally the fastest type of dinghy. The skiff has a flat and narrow hull, and is designed to plane in most conditions with the crew trapezing. It has impressive sail areas including a massive foresail, usually a Gennaker or asymmetric spinnaker. The 18ft Skiff is one example which usually has a crew of three: another is the Musto Skiff, a singlehander.
High Performance dinghies are fast and powerful dinghies designed for racing around an Olympic racing course. The examples of such dinghies are the Flying Dutchman, the Fiveohfive (505), the Jet 14, the Fireball, the Osprey, the Javelin and the 470. They are all planning easily including upwind and use trapeze and a symmetric spinnaker. Not all are two handed boats; the Contender and the RS600 are high performance single handed boats equipped with a trapeze, but not a spinnaker, and demonstrate a comparable performance. (many Skiffs are classed as High performance
Cruising dinghies are designed for leisure and family sailing and are usually more stable than high performance dinghies. This is provided by a 'chined' (less rounded) hull, greater displacement, and proportionally smaller sail area. Examples of these are the Wayfarer, the Mirror, the Laser Stratos, the Drascombe and the Laser 16. Sailing these boats can still give much excitement.
Catamarans are fast, high masted and double hulled boats which fall under the definition of dinghy also, usually having adjustable daggerboards. The influential Hobie Cat was developed in America, and this has its keel built into each hull shape. The Tornado is a high performance Olympic class catamaran, not for the fainthearted.
Racing dinghies cover a wide range, and many are descended from Uffa Fox's seminal International 14. People often "travel" with their dinghies to international races in famous sailing spots such as Lake Garda in Italy. The International 14 remains a popular racing class, having acquired racks (for trapezing crews) and a gennaker since its original design. The Laser, Laser Radial and Laser 4.7 are the variants of the Laser dinghy, a single-hander whose combination of simplicity, portability and performance has done much to advance dinghy racing and training. More modern dinghies like the Musto Skiff, RS600 and RS Vareo have also increased dinghy sailing participation around the UK. Two popular dinghies used in high school and college racing are the 420 and Flying Junior.
Sports Boats: These classes are larger off-shore racing dinghies which shade off into classes of yachts with fixed keels. Usually they have several crew members as well as the helm. Melges 24 and Laser SB3 are current examples of this type.
Development classes: Most dinghy classes have a fairly fixed layout of sails and hull design, and changes are very infrequent. However, some classes can compete and sail with less rigid definitions and measurements. This encourages experiment which often leads to innovation in techniques and construction. Examples are the International 14, National 12, the International Moth, and the 18ft Skiff. Classes which are not development classes are usually referred to as "One design". The first one design was the Water Wag, which first sailed in Dublin Bay in 1887. The class is still sailed today, over a hundred years later.
Dinghy racing
Main article: Dinghy racing
Racing is one of the most popular forms of dinghy sailing, and it contributes to the development of sailing skills as well as to improvements in dinghy and sail construction and design.
List of dinghy classes
Classes of sailing dinghies, scows, sharpies and skiffs (worldwide)
29er | 405 ("Four-oh-five") | 420 ("Four-twenty") | 470 ("Four-seventy") | 49er | 505 ("Five-oh-five") | 3000 | Adventuress | Albacore | ASC | Australian Sharpie | Bermuda Fitted Dinghy | Blue Jay | Bosun | BP18 | Buccaneer 18 | Byte | C-Lark | Cadet | Cherub | Comet | Contender | Corsair | Coypu | Dabchick | Day Sailer | Drascombe | El Toro | Enterprise | Escape | Europe |Fatty Knees | Finn | Fireball | Firefly | Flying Dutchman | Flying Eleven | Flying Junior | Flying Scot | GP14 | Graduate | Heron | Highlander | Hornet | Idle-along | IDRA14 | International Canoe | International Twelve | International Fourteen | 12ft Skiff |16ft Skiff | 18ft Skiff | Jacksnipe | Javelin | Jersey Skiff | Jet 14 | Jollyboat | JY15 | Lark | Laser | Laser Radial | Laser 4.7 | Laser 2 | Laser 2000 | Laser 3000 | Laser 4000 | Laser 5000 | Laser Pico | Laser SB3 | Laser Stratos | Laser Vortex | Laser Funboat | Lido 14 | Lightning | Manly Junior | Merlin Rocket | Miracle | Mirror | Mirror 16 | Musto Skiff | Mutineer 15 | National 12 | NorfolkPunt | O'Day DaySailer | OK Dinghy | Optimist | Osprey | Otter | P Class | Pirate | Pegasus | Precision 15 | Puddle Duck Racer | Pacer |RS200 | RS300 | RS400 | RS500 | RS600| | RS700 | RS800 | RS Feva | RS Vareo | RS Vision | RS K6 | Sabot | Sabre | Salcombe Yawl | Sea Bright | Scorpion (dinghy) | Scow (A, C, E, MC, M16, 17) | Snipe | Solo | Spiral | Streaker | Sunburst | Sunfish | Tasar | Thames A Class Rater | Thistle | Topper | Topper Topaz | Topper Topaz Taz | Topper Topaz Magno | Topper Topaz Omega | Topper Topaz Vibe | Topper Topaz Xenon | Turnabout | Turtle | Twinkles 10 & 12 | Vagabond | Vanguard 15 | Wanderer | Wayfarer | Y flyer | Zeddie | Zephyr | Zoom 8
Reference books
Bob Bond "The Handbook of Sailing" DK & Pelham Books revised 1996 ISBN 0-7207-2016-8
External references
Lark Class Owners Association
UK Dinghy Racing Website
Sailing Information and Dinghy classification
Retrieved from "en.wikipedia.org/wiki/Dinghy_sailing"
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