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Key: 1. Forestay 2. Shroud 3. (Spreaders) 4. Backstay 5. Inner forestay 6. Sidestay 7. (Boom) 8. Running backstays Standing rigging on a square-rigged vessel (illustrated left), which supports a mast comprising three steps: main, top, and topgallant (illustrated right). The shrouds support each section laterally and the stays support each, fore ...
The earliest B&R rig was the result of wind tunnel tests and research by Lars Bergstrom and Sven Ridder at Sweden's Royal Institute of Technology. [6] The first generation, built around 1970, included a backstay and was used on many production boats.
Sprit topmast: a small mast set on the end of the bowsprit (discontinued after the early 18th century); not usually counted as a mast, however, when identifying a ship as "two-masted" or "three-masted" Fore-mast: the mast nearest the bow, or the mast forward of the main-mast. [3] As it is the furthest afore, it may be rigged to the bowsprit.
A guyed radio mast. A guyed mast is a tall thin vertical structure that depends on guy lines (diagonal tensioned cables attached to the ground or a base) for stability. The mast itself has the compressive strength to support its own weight, but does not have the shear strength to stand unsupported or bear loads.
In some cases, additional characters are added to indicate quantities, bearing, course, distance, date, time, latitude, or longitude. There is also provision for spelling words and for indicating use of other codes. Several of the most common single-letter signals are shown at the right. Two-letter signals cover a broad gamut of situations.
4 – hull 5 – keel 6 – rudder 7 – skeg 8 – mast 9 – spreader 10 – shroud 11 – sheet 12 – boom 13 - mast 14 – spinnaker pole 15 – backstay 16 – forestay 17 – boom vang On a sailing vessel, a forestay, sometimes just called a stay, is a piece of standing rigging which keeps a mast from
In the 1930s, a research engineer named Edmund K. Brown invented a new kind of needle bearing, which eventually became the majority of the company's business. [3] After World War II , in which the US had a large need for needle bearings for military aircraft like B-29 bombers , the production of bearings became the company's central product line.
A tall mast was also available for sailing in areas with lighter winds. [ 1 ] The boat was fitted with a large variety of inboard engines for docking and maneuvering, including the Universal Atomic 4 and the Palmer P-60 gasoline engines , the British Perkins Engines 4-108, Westerbeke L-25 , Pathfinder and Japanese Yanmar diesel engines .