• Russian

  • Site map

  • E-mail

  • Order form

  • +7 (8182) 637-333
  • Hopper dredger "Onezhskiy"

    project 686

    Type: Twin-screw, self-propelled trailing suction hopper dredger dragging suction pipes equipped with hydro-scourers, bow thruster.
    Designation: Dredging job with carriage of ground in hold for unloading either by opening of 12 single bottom doors in row (six doors portside and six doors starboard side), or using self discharger (pumps) for deposition of pulp through the sludge line at the distance up to 400 meters with height of stack place up to 4 meters.
    Allowed weather conditions: wind force up to 5 Beaufort scale with max height of wave 1,75 meters (pitching) or 1,25 meters (rolling).

    Russian Register class KM L3 dredger
    Year built, Builder 1966, Glasgow
    Length overall 82,07 m
    Beam 14,10 / 13,72 m
    Depth 5,18 m
    Max Draught at dredging work (Loaded) 4,19 m
    Light draft  bow 1,77 m
    Light draft  aft 3,29 m
    Deadweight 1747 t
    Gross tonnage 1944 rt
    Net tonnage 583  rt
    Hopper capacity (full loaded) 1180 cbm
    Hopper capacity (overflow up to low level) 785 cbm
    Suction pipe diameter 600 mm
    Discharge pipeline diameter 600 mm
    Dredging pump (number and ouput, h.p./kw) 2 * 350 / 255
    Dredging capacity (max) * 1000 cbm per hour *
    Pumping capacity for deposition of pulp through the sludge line ** 700 cbm per hour **
    Max Dredging depth 15 m
    Min Dredging depth 5,5 m
    Min required Length of dredging area 500 m
    Min required area for one hundred eighty degrees turn 140 m
    Speed loaded 10,6  knots
    Speed in ballast 12,2  knots
    Main engines KCCM6 "Mirrlees"
    Number x output 2 x 1510 / 1111 h.p./kw
    Recommended Oil MDO Dist DMB (ISO 8217/1996)
    Fuel consumption (daily):  
      Sailing 8,5 t
      Dredging 8,0 t
      Deposition through the sludge line 7,0 t
      Stoppage during dredging job 1,9 t
      Idle staying 0,99 t
    Bunker capacity 210 t
    Fresh water capacity 118 t
    Bow thruster 350 h.p.
    Crew 26 persons
    Remarks :
    * Dredging capacity depends on type of soil to be dredged.
    ** Pumping capacity for deposition of pulp through the sludge line depends on length of line as    well as of height of stack place.
    Rambler's Top100