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Windmill on a trailer, showing hull shape. The Windmill is a recreational sailboat, built predominantly of plywood or fiberglass in the form of a double hull with a foam core, resulting in an unsinkable boat. It has a fractional sloop rig with aluminum spars. The boat and is sailed only with a jib and mainsail, no spinnaker and no trapeze.
In 1885 Dempsters produced its first pumping windmill, the Original Dempster Solid Wheel Mill. [ 1 ] [ 13 ] This wooden wheel mill was produced in both 10 and 12 foot diameter models. In 1892 the Beatrice company began to produce and market its first all steel mill, the Queen City.
The windmills at Kinderdijk in the village of Kinderdijk, Netherlands is a UNESCO World Heritage Site. A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, by tradition specifically to mill grain (), but in some parts of the English-speaking world, the term has also been extended to encompass windpumps, wind turbines, and other applications.
It was a Halladay windmill for driving a dynamo. Friedländer's 6.6 m (22 ft) diameter Halladay "wind motor" was supplied by U.S. Wind Engine & Pump Co. of Batavia, Illinois. The 3.7 kW (5 hp) windmill drove a dynamo at ground level that fed electricity into a series of batteries. The batteries powered various electrical tools and lamps, as ...
The cloth is extended or retracted by a rod and lever system, and connected with a shutter bar on each sail. Adjustment of the roller reefing sail can be made without stopping the mill. This type of sail was popular in Yorkshire, although the only remaining mill with roller reefing sails intact is Ballycopeland Windmill in Northern Ireland.
It displaces 275 lb (125 kg) and can be fitted with a 56 sq ft (5.2 m 2) spinnaker. [1] [3] [4] The boat has a draft of 3.67 ft (1.12 m) with the centerboard extended and 6 in (15 cm) with it retracted, allowing beaching or ground transportation on a trailer. [1] For sailing the design may be equipped with an adjustable outhaul and hiking ...
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