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Two Ton class is an offshore sailing class of the International Offshore Rule. The Two Ton Cup is held by the Royal Ocean Racing Club as part of its Admiral's Cup. [1]
The first of these was the One Ton class, so named because there was a spare trophy from the defunct One Ton rating class, and this then spawned the Mini Ton, 1/4 Ton, 1/2 Ton, 3/4 Ton and Two Ton classes, as well as unofficial 50-footer, ULDB 70, and Maxi classes. The official classes each had an annual world championships.
It consists of a small board with a knotted piece of twine through the center. The observer holds one of the knots in his mouth and extends the board away so that the edges make a constant angle with his eyes. Mariner's astrolabe Derived from the astrolabe, it was developed in late 15th century and found use in the 16th to 17th centuries.
Maintaining depth in a submarine is a sophisticated task. The planesman was provided with a prominent depth gauge to monitor this, usually a circular Bourdon gauge. For precise maintenance at periscope depth an additional shallow-depth manometer, a transparent vertical pipe, would be provided too. With the development of active sonar, depth ...
The Ton classes were Olympic classes in 1900 and probably also in 1896. Due to weather conditions the yacht races in 1896 were cancelled and much information of that event is no longer available. For the 1900 events, sailing categories were established based on the Godinet rule:
In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. [1] In commercial vessels, the latter criterion measured relative to the ship's load line , regardless of deck arrangements, is the mandated and regulated meaning.