"Okean" type refrigerating trawler

 PHOTOS
LIST OF VESSELS 



  About 171 vessels were built from 1957 to 1961 at Stralsund.  About 16 vessels (21?) were built for Soviet Naval Forces and classified as small intelligence ship. Five trawlers were transferred to Cuba.
Purpose of the vessel:     - fishing by means of trawl or drift net
    - production of salted fish
    - transport of processed cargo to port
Length OA (m) 50.80
Length BP (m) 44.35
Breadth extreme (m) -
Molded breadth (m) 8.80
Depth to upper deck (m) 4.30
Load draught, average (m) 3.38
Displacement (tonnes) 737
Deadweight (tonnes) 263
Gross tonnage / Net tonnage (register tons)
508 / 184
Carrying capacity (tonnes) 110
Main engines:

    - Main engine number, power (Bhp each)
1*540
    - Main engine model
8NVD 48U (R8DV-148)
    - Speed of rotation (r.p.m.)
275
Auxiliary diesel generators:

    - Diesel engine number, power (Bhp each)
1*150
1*100
1*28
    - Speed of rotation (r.p.m.)
750
750
1000
    - Engine model
6NVD 24 (6DV-224)
4NVD 24 (4DV-224)
2NVD 18
    - Generators number, power (kW each)
1*100
1*64
1*16
    - Generator model
GGB-19
GGB-17
GGB-10
    - Rated voltage (V)
230
    - Current type
DC
Emergency diesel generator:
    - Diesel engine power (Bhp)
n/a
    - Speed of rotation (r.p.m.)
n/a
    - Engine model
n/a
    - Generator power (kW)
n/a
    - Generator model
n/a
    - Rated voltage (V)
n/a
    - Current type n/a
Emergency lighting:
    - Storage batteies capacity (Ah)
162
    - Voltage (V) 24
Fish processing plant capacity:
    - Salted fish (cans/24 hrs)
-
Refrigerated cargo spaces number, total cubic capacity (cub. m) 2*352
Ref. temperatures (C) -4
Refrigerants Ammonia
Derricks number, lifting capacity (tonnes) 1*2.0
Trawl winch:

    - Type -
    - Drag force (ton-force)
4.0
    - Pulling speed (m/min)
60
    - Rope capacity (m)
1200
    - Rope diameter (mm) 21
Diesel oil tanks (tonnes) 101
Heavy fuel oil tanks (tonnes) 22
Fresh water tanks (tonnes)
50
Speed (kn) 11.0
Number of beds for crew 28
Number of units 171
Year of beginning of construction of vessels of this type 1957
Year of the end of construction of vessels of this type 1961
Built by "Volkswerft VEB", Stralsund, GDR
Notices:
        - During construction of a series of vessels of one type, in their design some changes can be made and the above-stated characteristics can be changed insignificantly.
        - The above-stated characteristics belong to the lead vessel (source - Fishing industry fleet. Reference book. 1972). Other possible versions of the corresponding characteristic can be specified in brackets.
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