Silex (LAHW)

Builder:Simek AS, Flekkefjord

Main Dimensions

Length:35,11 m
Breadth:10,8 m
Draft:5,0 m


Operator:Østensjø Rederi AS
Builder:Simek AS, Flekkefjord
Delivered:June 1994
Yard no.:79
Call sign:LAHW
Port of Registry:Haugesund
IMO no.:9085194
Classification:BV : I HULL MACH Tug Oil recovery Tug Unrestricted navigation AUT-UMS
Safety regulations:NMA


Length o.a.:35,11 m
Breadth mld.:10,8 m
Depth mld.:7,6 m
Draft max.:5,0 m
Air draft:22

Tonnage - Deadweight

Gross tonnage:543 GT
Net tonnage:NT

Deck equipment

Towing pins:1 x 300 T. Type: Shark Jaw
Deck cranes:1 x 4,5 T at 9 m. Type: Effer
Tugger winches:1 x 10 T


Main engines:2 x Wartsilla Diesel. Type: 6L28B
Horse power ration:5000 BHP

Auxiliaries / Electrical power

Generators:2 x Volvo Penta. Type: TMD 122A

Electrical systems and power management

Main propellers

Maker:2 x Ulstein/Liaaen Compass Thrusters
Type:TCN 92/6 8-250
Speed:225 rpm


Bow thrusters:1 x Brunvoll Tunnel thruster, 300 BHP


Bollard pull:62 tonnes ahead. 58 tonnes astern
Speed free running:14 knots

Liquid tank capacities

Marine Gas Oil:140 m3
POT water:63 m3
Foam:30 m3
Oil recovery:120 m3

Fire fighting equipment

Firepumps:2 x 400 m3/h at 15 bar
Firemonitors:1 x water monitor 6000 l/min. 2 x water/foam monitor 3000 l/min
Foam:2 x water/foam monitor 3000 l/min
Other:Protection equipment


Oil booms:1 x 300 m Heavy duty oil boom
Oil skimmer:Optional

Towing equipment

Towing winch forward:70 T Pull. 225 T Break. Type: Karm Combined towing/anchor windlass with 2 drums
Towing winch aft:75 T Pull. 225 T Break. Type: Karm
Pull/Brake force:Forward: 70 T Pull. 225 Brake. Aft: 75 T Pull. 225 T Brake
Escort line:200m Super Braid 104mm + 50m Dynema pennant 60mm
Spare tow/escort line:Wire 1 x 850 m 48 mm

Navigation equipment

Radar:1 x JRC Raytheon 3 cm ARPA. 1 x Furono Radar FR 2137 10cm
Electronic Chart System:1 x Telchart
Compass:2 x Robertson Gyro RGC 11
Autopilot:1 x Robertson AP9 MK 2
Echo Sounder:1 x Skipper GDS 101
Navtex:1 x JRC NCR 300A
DGPS:1 x Robertson. 1 x Furuno GP 90
AIS:1 x Sperry Maring R4
Log:1 x JRC JLN 203

Communication equipment

General:GMDSS installation in accordance with IMO regulations for vessels operating within Sea Area A2
GMDSS VHF with DSC:1 x Furono 8800D/S
GMDSS VHF portable:3 x Scanti 9110
VHF:1 x Scanti Trp 3012/3024. 2 x Motorola portable
GMDSS EPIRB:1 x Jotron Mk 30S
GMDSS SART:1 x McMurdo 406/M3. 1 x Tron 45SX
Sattelitte sytem:1stk Iridium sat
Mobile Telephone:GSM/Land line
Telefax:GSM/Land line


Single cabins:3 x Sigle cabins
Double cabins:3x Double cabins
Office:1 x Office
Other:Messroom, Dayroom, Laundry, Galley, Washroom

Lifesaving / rescue

Approved lifesaving appliances for:LSA approved for 12 persons
Liferafts:2 x 12 persons
Rescue/MOB boat:Zodiac with 25 HP outboard