Azimuth stern drive tug

Azimuth stern drive tug
Frigga (1998)
“Frigga” (1998)
Freja (1998)
“Freja” (1998)
Fenja (1999)
“Fenja” (1999)

Years of construction	1998 — 1999
Number built	3
Main particulars
Length overall, exclusive fenders	33.0 m
Breadth moulded	10.7 m
Depth midship moulded	5.3 m
Scantling draft moulded	4.8 m
Deadweight at scantling draft	323 t
Propulsion machinery (MCR)	2x1,800 kW at 750 rpm
Geared down to 226 RPM at two azimuth thruster each with a controllable pitch propeller with a diameter of	2,400 mm
Trial speed at MCR and design draft (4,5 m)	14.0 knots
One bow thruster	200 kW
Diesel generators	2 x 260 kW
One shaft generator	92 kW
Cargo deck reinforced for	5 t/m²
Bollard pull at MCR	58 t
Tank Capacities
Diesel oil (100%)	216 m³
Fresh water (100%)	38 m³

Accommodation
Maximum number of crew7.5 in single cabins and 2 in double cabins. Combined mess and recreation room for crew. Wheelhouse arranged for one man operator.
Features
The vessel is built as an ice breaking harbour / escort tug of the ASDT type (Azimuth Stern Drive Tug) for worldwide operation.
Forward: One anchor windlass/towing winch with split drum for two 120 mm ropes. Line pull 30 tonnes and brake holding load 160 tonnes. Amidships: One towing winch with split drum for one 44 mm steel wire and one 120 mm rope. Wire drum fitted with spooling gear. Line pull 30 tonnes and brake holding load 160 tonnes. One tugger winch and one capstan line pull each 10 tonnes. All winches are of electric hydraulic type with local and remote control. One towing hook 60 tonnes SWL.