Inverted bow

In ship design, an inverted bow (occasionally also referred to as reverse bow) is a ship's or large boat's bow whose farthest forward point is not at the top. The result may somewhat resemble a submarine's bow. Inverted bows maximize the length of waterline and hence the hull speed.

Inverted bows were popular on battleships and large cruisers in the early 20th century. They fell out of favour, as they were very wet on high speeds and heavy seas, but have made a comeback on modern ship design.

Examples

Motor Yacht "A"

The 390 ft luxury motor yacht M/Y "A" has an inverted bow, along with a tumblehome hull design.

Ulstein X-Bow

The Ulstein X-Bow is an inverted ship's bow designed by Ulstein Group to improve handling in rough sea, and to lower fuel consumption by causing less hydrodynamic drag. It is shaped somewhat like a submarine's bow.

As of 2016, more than 100 X-Bow vessels have been ordered, of which close to 50 were in operation in 2011. The Ulstein Verft yard is constructing two vessels featuring the X-Stern, a similar shape for the stern, these two vessels being offshore wind power service vessels for Siemens Wind Power. In 2015, the X-STERN was awarded the Next Generation Ship Award.

Bow

Bow may refer to:

Boats

Knots

Music

Places

Social

Bowé

Bowé is a town and sub-prefecture in the Yomou Prefecture in the Nzérékoré Region of south-eastern Guinea.

References

Coordinates: 8°06′N 8°50′W / 8.100°N 8.833°W / 8.100; -8.833

Bow, New Hampshire

Bow is a town in Merrimack County, New Hampshire, United States. The population was 7,519 at the 2010 census.

History

The town was granted by the authorities of New Hampshire, to Jonathan Wiggin and others, in 1727, and was originally 9 miles (14 km) square, and covered nearly all the territory granted to Ebenezer Eastman and others, by the authorities of Massachusetts, two years previous, under the name of Pennacook (now Concord.) Massachusetts claimed to hold authority over a large portion of the territory of New Hampshire for many years, till the final boundary line was established, in 1741, giving New Hampshire more territory than it had ever claimed. These complicated lines of the two towns coming from two different authorities, were not settled decisively till after the final separation of the two states. The government of New Hampshire gave Bow the preference in its grant of 1727, and did not recognize the title of the Pennacook grantees, and in the bill giving a charter for the parish of Concord, it was worded as "taking a part of the town of Bow," etc. Although Concord was granted and surveyed before Bow, its final organization was 38 years after it. Bow gained a victory over Concord in its original title; still it was obliged to yield over two-thirds of its territory to Concord, Pembroke and Hopkinton, establishing their final boundary lines at different times, from 1759 to 1765.

Inverted question and exclamation marks

Inverted question (¿) and exclamation (¡) marks are punctuation marks used to begin interrogative and exclamatory sentences (or clauses), respectively, in written Spanish and sometimes also in languages which have cultural ties with Spanish, such as in older standards of Galician (now it is optional and not recommended), Catalan, or Waray-Waray. They can also be combined in several ways to express the combination of a question and surprise or disbelief. The initial marks are normally mirrored at the end of the sentence or clause by the common marks (?, !) used in most other languages. Unlike the ending marks, which are printed along the baseline of a sentence, the inverted marks (¿ and ¡) actually descend below the line.

Inverted marks were originally recommended by the Real Academia Española (Spanish Royal Academy) in 1754, and adopted gradually over the next century.

On computers, inverted marks are supported by various standards, including ISO-8859-1, Unicode, and HTML. They can be entered directly on keyboards designed for Spanish-speaking countries, or via alternative methods on other keyboards.

Inverse

Inverse or invert may refer to:

Science, engineering and mathematics

See also