Aqua City

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Aqua City p1
Ship data
other ship names

Wan Tai (2011–2013)
Merida (2006–2011)
Galvanic (1997–2006)
Hua Tu (1990–1997)

Ship type Motor sailing ship
Owner Aqua City Maritime, Bahamas
Shipyard Nippon Kokan Shipyard, Tsurumi, Japan
Whereabouts scrapped from September 19, 2013
Ship dimensions and crew
length
179.90 m ( Lüa )
173.00 m ( Lpp )
width 26.30 m
measurement 18,597 GRT
Machine system
machine 1 × diesel engine
Top
speed 		14.0 kn (26 km / h)
propeller 1 × fixed propeller
Rigging and rigging
Rigging JAMDA sails
Number of masts 2
Number of sails 2
Transport capacities
Load capacity 31,217 dwt
Others
Classifications Nippon Kaiji Kyokai
Registration
numbers 		IMO 8313037
Remarks
Data

Miramarship index

The Aqua City was a bulk carrier that was operated commercially successfully with a combined motor and sail drive from 1984.

history

After the end of the "classic" sailing cargo shipping , systems were developed around the world against the background of the high bunker prices during the oil crises in the mid-1970s and early 1980s with which an attempt was made to reduce the fuel consumption of an otherwise conventional cargo ship with the help of a sailing device .

As early as mid-1979, the only 83 GRT motorized sailing ship Mini Daigo was launched, on which a similar sailing system was successfully tested. This basic concept was at the 1980 significantly smaller sail motor tanker Shin Aitoku Maru by Nippon Kokan in cooperation with the JAMDA ( YES pan M achinery D evelopment A developed ssociation) and implemented.

Based on the experience gained in this way, the Aqua City was built in 1984 by the Japanese Nippon Kokan shipyard in Tsurumi. The mixed motor sail operation was carried out for a long time without any noticeable disturbances. In the 1990s, however, the sailing system was dismantled because the increasing need for maintenance and repair work on the sails, with the bunker prices lower at the time, no longer allowed efficient regular operation.

The ship was renamed Hua Tu in 1990, Galvanic in 1997 , Merida in 2006 and finally Wan Tai in 2011 . After several changes of owner and name, the ship was finally scrapped in September 2013.

Sail arrangement

The two automatically steered rigid but foldable JAMDA sails developed by NKK were attached to two front masts and should bring about a fuel saving of between 10 and 30 percent.

literature

  • Risch, Helmut: Windships . 2nd Edition. Verlag Technik, Berlin 1990, ISBN 3-341-00805-5 .

Individual evidence

  1. ↑ miramarshipindex.org.nz ( Memento from May 16, 2014 in the Internet Archive )
  2. ↑ Dudszus, Alfred; Köpcke, Alfred: The big book of ship types. Augsburg, Weltbild Verlag (licensed edition by transpress, Berlin), 1995, p. 310. - ISBN 3-89350-831-7
  3. ↑ Galuppini, Gino, World Cyclopedia of Ships Volume II, merchant and passenger ships from their beginnings until today, Südwest Verlag, Munich, 1988, p. 85. - ISBN 3-517-01077-4
  4. ↑ Walker Wingsail and the MV Ashington. In: Cooke Associates. Archived from the original on January 23, 2011 ; Retrieved April 1, 2016 .
  5. ↑ Ronald O'Rourke, Navy Ship Propulsion Technologies: Options for Reducing Oil Use , Congressional Research Service Report for Congress, Department of the Navy - Naval Historical Center, 2006, p. 19
  6. ↑ Equasis (English, free registration required)
  7. ↑ http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/621/1/JFSF2000.PDF