THE GEARED DIESEL ICEBREAKER MUDYUG

A description is given of the icebreaker Mudyug which is the first of a series of three icebreakers ordered by the Soviet Union from the Wartsila shipyard, Helsinki <Finland>. Principal particulars: Length, o.a. 92.0m, w.l. 78.5m; Breadth, max. 21.4m; Depth 10.5m; Draught 6.5m; Displacement 6138 tonnes; Max. delivered power 9100kW; Bollard pull at 7000 kW 917 kN; Trial speed 17.45 knots. In contrast with Soviet icebreakers of this propulsive power, which usually have Diesel-electric propulsion, the Mudyug is provided with a geared Diesel installation comprising four Wartsila-Wasa engines, each rated at 2390 kW, 760 rpm. They drive two controllable-pitch propellers through single-stage reduction gearing. Each propulsion shaft includes a 11.5-tonne flywheel to assist propeller rotation under ice-impact conditions. The ship's progress in ice is also assisted by an air lubrication system for the hull. Two semi-balanced rudders are fitted, each actuated by independent steering machinery.

• Supplemental Notes:
  • Sudostroenie, No.7 <1983>, p.3 <July> (3 pp., ship plans, 1 phot.)
• Authors:
  • Olano-Erenya, A
  • Strelnikov, N V
• Publication Date: 1983

Language

• Russian

Subject/Index Terms

• Old TRIS Terms: Mudyug
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00685900
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM