Open ship
The term open ship describes a type of ship with a high degree of deck opening .
history
Since the 1930s, the measure of the hatch openings has been working on cargo ships in relation to the entire top surface to increase to carry the resulting reduced Unterstaudach for faster and particularly bulky cargoes easier cargo handling. The shipbuilding challenge here was to control the torsional forces that occur in the hull without making the steel structure too heavy or expensive in this area.
Starting with the first container ship conversions , such as the Gateway City or the Fairland in the 1950s or the first open general cargo ships of the Del Rio class (from 1960), the Poltava class (from 1962), the open multi-purpose cargo ships planned and built as such - Besseggen and Rondeggen bulk carriers (1962/63) or the Kooringa container ship , more and more types of open ship were created . The underlying design principle ultimately prevailed as far as possible in multi-purpose freighters, timber freighters and semi-container ships . In the case of container ships, they quickly switched to expanding the degree of deck opening so that the inside of the hatch kumming merged into the cargo hold sides without any gradation. Apart from special ships , especially those with tween decks, or bulk carriers, this is to be regarded as the standard for a large number of dry cargo ships today .
literature
- Dudszus, Alfred; Köpcke, Alfred: The big book of ship types . Weltbild Verlag, Augsburg 1995, ISBN 3-89350-831-7 (licensed edition by transpress, Berlin).
- Schönknecht, Rolf; Laue, Uwe: ocean freighters of world shipping . Volume 1. transpress Verlag, Berlin 1987, ISBN 3-344-00182-5 (library of ship types).