Estuary tug class “O (ice)” with a power of 440 kW, project 941

Ship type:

twin-screw tug with reduced air draught.

Purpose:

road work in the port of St. Petersburg, guiding large-tonnage vessels under bridges on the Neva River, as well as towing non-self-propelled vessels along the Neva River and Volga-Baltic Canal.

Class of the register:

“O (ice)”

Year of construction of the lead ship:

Main features

Vessel overall dimensions, m:
length	27,6
width	7,4
depth	3,1
overall height from OP	6,0
Vessel displacement with full reserves, t	205
Mean draft at a displacement of 205 t, m	2,33
Traction force at speed 8 km/h, kN	72,5
Rate of sailing, km/h	19,3
Crew seats	10
Autonomy (days)	5
Main motor drives:
diesel	6ЧРП (four-cycle; reversible; with reduction gear) 25/34
number and power, kW	2x220

Towing winch GLB3/12 with traction force 2x29,4 kN.