ROTAS SYSTEM REVOLUTIONIZES SHIPBUILDING AT MITSUI'S CHIBA YARD

At Mitsui's Chiba yard a new system of shipbuilding is being utilized. The yard has three distinct building docks. Dock No1a is being utilized for construction of fore and stern bodies. Dock No1B is utilized for repair work and Dock No2 is utilized for hull completion. The fore and aft bodies built in Dock 1a are temporarily joined and floated to Dock 2 where they are separated and properly postioned for mid-body construction and hull completion. The Diamond and Rotas systems are the keys to the success of this method of building. The Diamond system makes use of conventional construction techniques. The Rotas system employs the use of tracks and turntables for transferring and positioning of pre-constructed ship sections. These sections are built indoors and tranferred outdoors where they are joined together. The tracks and turntables eliminate the need for cranes. Each block weighs up to 550 tons.

• Corporate Authors:

  IPC Business Press Limited

  33-39 Bowling Green Lane
  London EC19 1AH,   England 
• Publication Date: 1972-3-17

Media Info

• Features: Figures; Tables;
• Pagination: p. 23-25
• Serial:
  • Shipbuilding and Shipping Record
  • Volume: 119
  • Issue Number: 11
  • Publisher: Transport and Technical Publications Limited

Subject/Index Terms

• TRT Terms: Planning; Production; Production control; Shipbuilding; Shipyards
• Old TRIS Terms: Shipyard mechanization
• Subject Areas: Marine Transportation; Planning and Forecasting;

Filing Info

• Accession Number: 00034769
• Record Type: Publication
• Source Agency: United States Merchant Marine Academy
• Files: TRIS
• Created Date: Sep 29 1973 12:00AM