Name

Type

 

IMO-number

Registration number

Call sign

Flag

Port of registry

GT

DWT  

NT

Length

 

Breadth

Draught loaded

Freeboard

Depth

Speed

Built

 

 

Date of completion

Yard number

Hull material

Watertight compartments

Continuous decks

Propulsion power

 

 

Propelling system

Electrical installation

 

 

Diesel generators

Total installed power

Bow thruster

Total capacity of holds

Number of tanks

Total capacity of tanks

Oil recovery beams

Fuel capacity

Owner

 

 

 

Remarks

DN 31

Oil recovery vessel

Underwater plough

9031193

01 00097 1996

ORWI

Belgium

Antwerpen

363 t

585 t

139 t

32,63 m over all

29,50 m between perpendiculars

11,86 m over all

3,05 m

743 mm

3,80 m

14 knots

1992
Rupelmonde
Belgium

07.10.1992

468

Steel

6

1

2x Caterpillar - 4 stroke 12 cylinder internal combustion engine  -  500 kW total 1.000 kW / 1.358 hp at 1.800 rpm

Built: 1992

2x Screw propeller solid ord 2.50 at 401 rpm

Power voltage: 380 V

Lighting voltage: 220 V

Frequency: 50 Hz

2x 136 kVA - 109 kW - 160 hp

1.529 kW

283 kW

536 m³

4

536 m³

2x 13,00 m

47 m³

N.V. Ondernemingen Jan De Nul
Tragel 60
9308 Hofstade-Aalst
Belgium

The ’DN31’ has especially been built as a permanent standby vessel for oil recovery in case of shipping accidents on the River Schelde or in front of the Belgian coast.
During normal activities, the vessel is used with an underwater plough for seabed levelling in confined areas such as accesses to locks and near quay-walls.