Dinghy sailing is the activity of sailing small boats by using five essential controls: the sails the foils (i.e. the daggerboard or centreboard and rudder and sometimes lifting foils as found on the Moth) the trim (forward/rear angle of the boat in the water) side-to-side balance of the dinghy by hiking or movement of the crew, particularly in windy weather ("move fast or swim") the choice of route (in terms of existing and anticipated wind shifts, possible obstacles, other water traffic, currents, tides etc.) When racing, the above skills need to be refined and additional skills and techniques learned, such as the application of the "racing rules of sailing", boat handling skills when starting and when rounding marks, and knowledge of tactics and strategy. Racing tactics include positioning the boat at different angles. To improve speed when racing, sailors should position themselves at the windward direction (closest to the direction of the wind) in order to get "clean air".
The RYA, the regulating authority for sail training in the UK, states that, "With a reliance on nature and the elements, sailing ... is about adventure, exploration, teamwork and fun."
Development of the dinghy
Early beginnings
There has always been a need for small tender boats for transporting goods and personnel to and from anchored 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.
In 1887 Thomas Middleton, a Dublin solicitor, considered that yacht racing was becoming an excessively expensive activity, with boats becoming eclipsed by better designs each year. He proposed the 'One Model' principle. He wanted yacht racing to be an exercise of skill with all boats being built to the same design. He assembled a group of potential owners who agreed to call the boat 'The Water Wag'. The Water Wag Club still prospers in Dún Laoghaire harbour, with racing each Wednesday evening during the Summer season.
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
The 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 that are still with us nearly a century later: the Albacore, International 14, National 12, Jet 14, Firefly and Flying Fifteen. The Scorpion was designed in 1959 by Taprell Dorling.
He also introduced the major advance of hull shapes that 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, with the bow of the boat not in the water. 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 driving force provided by the sails has to overcome less resistance, and therefore speed increases dramatically.
In 1928 Uffa Fox introduced planing to the English dinghy racing world in his International 14 boat, the Avenger. He gained 52 first places, two second places and three third places out of 57 race starts that year. Note: Graham Anderson in his 1999 book Fast Light Boats, a Century of Kiwi Innovation argues that planing centreboard sailing boats were introduced into New Zealand in the early 20th century – well before Uffa Fox popularised the concept.
