JPS5472891A - Method of steering frozen sea ship and ship thereof - Google Patents
Method of steering frozen sea ship and ship thereofInfo
- Publication number
- JPS5472891A JPS5472891A JP14089377A JP14089377A JPS5472891A JP S5472891 A JPS5472891 A JP S5472891A JP 14089377 A JP14089377 A JP 14089377A JP 14089377 A JP14089377 A JP 14089377A JP S5472891 A JPS5472891 A JP S5472891A
- Authority
- JP
- Japan
- Prior art keywords
- ship
- draft
- turning
- projections
- sea
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To enable obtaining of extremely small icecrushing resistance of a frozen sea ship at linear sailing time and of sufficient turning performance at turning time, and of transportation of articles or the like in frozen sea icy waters.
CONSTITUTION: There are provided projections 2 at the stem of the hull 1 of a frozen sea ship and ballast tanks 4a to 4c at the stem, sides of hold 3, bottom, and stern. The draft of the hull can be altered between linear draft WL1 and turning draft WL2 by means of the ballast tanks 4a to 4c, and the projections 2 make contact with ice plates on the sea surface at the turning draft WL2 time. Accordingly, when the hull 1 is turned in the icy waters, it retains the turning draft WL2 to destroy the ice plates via the projections 2 to form open sea surface of broader width than the width of the ship in the amount of the projections 2 so as to thereby easily steer the ship. When the ship sails linearly in non-icy waters or icy waters, the linear draft WL1 is retained so as to dispose the projects 2 above the sea surface.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14089377A JPS5472891A (en) | 1977-11-24 | 1977-11-24 | Method of steering frozen sea ship and ship thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14089377A JPS5472891A (en) | 1977-11-24 | 1977-11-24 | Method of steering frozen sea ship and ship thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5472891A true JPS5472891A (en) | 1979-06-11 |
Family
ID=15279229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14089377A Pending JPS5472891A (en) | 1977-11-24 | 1977-11-24 | Method of steering frozen sea ship and ship thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5472891A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4369725A (en) * | 1978-06-30 | 1983-01-25 | Mitsui Engineering & Shipbuilding Co., Ltd. | Method and means for increasing the maneuverability of a ship in ice-covered waters |
JP2008521685A (en) * | 2004-12-31 | 2008-06-26 | 広州広船国際股▲ふん▼有限公司 | Hull |
-
1977
- 1977-11-24 JP JP14089377A patent/JPS5472891A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4369725A (en) * | 1978-06-30 | 1983-01-25 | Mitsui Engineering & Shipbuilding Co., Ltd. | Method and means for increasing the maneuverability of a ship in ice-covered waters |
JP2008521685A (en) * | 2004-12-31 | 2008-06-26 | 広州広船国際股▲ふん▼有限公司 | Hull |
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