A1

Character letter and character figure of automated ship (automation extent of the machinery installation, except for passenger ships and special purpose ships, carrying more than 200 special personnel on board, is sufficient for operation of the machinery installation with unattended machinery spaces and main control station as well)

A2

Character letter and character figure of automated ship (automation extent of the machinery installation is sufficient for operation of the machinery installation by one operator from the main control station with unattended machinery spaces)

A3

Character letter and character figure of automated ship (automation extent of the machinery installation with main machinery power output up to 2250 kW is sufficient for operation of the machinery installation with unattended machinery spaces)

Aс

Character letters of automatic stabilization of the high speed craft (the craft is equipped with the system providing the automatic or semi-automatic stabilization in space and the craft is unable to move under service conditions without this system)

Н

Character letter denoting that the refrigerating plant is intended to maintain the required conditions for the carriage of the liquefied gas in bulk

К

Character letter denoting that the refrigerating plant is intended for the cooling of cargo carried in the insulated containers

KM(*)

Character letters and distinguishing mark assigned to the ship or the floating facility which was constructed in accordance with the Rules and under the supervision of Russian Maritime Register of Shipping

KM*

Character letters and distinguishing mark assigned to the ship or the floating facility which was as a whole (or its hull or machinery installation, machinery, equipment) built or manufactured in accordance with the Rules and under the supervision of a classification body recognized by Russian Maritime Register of Shipping and afterwards the ship or floating facility was classed by Russian Maritime Register of Shipping

KM*_

Character letters and distinguishing mark assigned to the ship or the floating facility which was as a whole (or its hull or machinery installation, machinery, equipment) built or manufactured in accordance with the Rules and under the supervision of an IACS Member classification society but to which, due to specific structural features, КМ* symbol cannot be assigned during the process of transfer of class to Russian Maritime Register of Shipping

(KM)*

Character letters in parentheses and distinguishing mark assigned to the ship or the floating facility which was as a whole (or its hull or machinery installation, machinery, equipment) built or manufactured which was constructed without the supervision of a classification body recognized by Russian Maritime Register of Shipping or any other classification body and afterwards the ship or the floating facility was classed by Russian Maritime Register of Shipping

MHC

Multi-hull craft

Р

Character letter denoting the capability of refrigerating plant of the factory ship to cool and freeze the sea products

r

Insulated (cargo hatch)

R

Insulated (container)

R12

Freon 12

R22

Freon 22

R22+R115

Azeothropic mixture

R502

Azeothropic mixture

R717

Ammonia

R290

Propane

R1270

Propylene

R134A

CF3-CH2F

TEU

Twenty-foot equivalent unit

1SS

Technical condition of ship’s hull corresponding to the condition of hull structures at the time of the first Special Survey, i.e. after 5-year service from the construction date, as stipulated in the normative documents of the Russian Maritime Register of Shipping.

2SS

Technical condition of ship’s hull corresponding to the condition of hull structures at the time of the second Special Survey, i.e. after 10-year service from the construction date, as stipulated in the normative documents of the Russian Maritime Register of Shipping.

3SS

Technical condition of ship’s hull corresponding to the condition of hull structures at the time of the third Special Survey, i.e. after 15-year service from the construction date, as stipulated in the normative documents of the Russian Maritime Register of Shipping.

G

Character letter denoting that in addition to the refrigerating plant the ship is equipped with the system regulating the composition of the gas environment in the refrigerated cargo spaces and/or insulated containerst.

DINPOZ-1

Distinguishing mark for the ship fitted with Class 1 dynamic positioning system

DINPOZ-2

Distinguishing mark for the ship fitted with Class 2 dynamic positioning system

DINPOZ-3

Distinguishing mark for the ship fitted with Class 3 dynamic positioning system

L1

Ice strengthening notation of the ship (independent navigation in the Arctic in summer in broken open ice and in the non-arctic freezing seas all the year round in light ice conditions

L2

Ice strengthening notation of the ship (independent navigation in the non-arctic seas in small open ice)

L3

Ice strengthening notation of the ship (independent navigation in the non-arctic seas in small open ice)

L4

Ice strengthening notation of the ship (independent navigation in the non-arctic seas in small open ice, short period)

LL1

Icebreaker category notation (intended for all kinds of icebreaking operations in the arctic seas on coastal routes and shore ice belt routes in high latitudes all the year round and capable of forcing the way in compact ice field over 2,0 m thick. The total shaft power is 47807 kW and over)

LL2

Icebreaker category notation (intended for all kinds of icebreaking operations in the arctic seas during the summer period and for operation on coastal routes during the winter period and capable of forcing the way in compact ice field less than 2,0 m thick. The total shaft power is 22065-47807 kW)

LL3

Icebreaker category notation (intended for all kinds of icebreaking operations in the non-arctic freezing seas, in shallow waters and mouths of rivers flowing into the arctic seas during the winter period without assistance as well as for operation on coastal routes in the arctic seas under convoy of icebreakers of higher category all the year round, and capable of forcing the way in compact ice field up to 1,5 m thick. The total shaft power is 11032-22065 kW)

LL4

Icebreaker category notation (intended for all kinds of icebreaking operations in harbour and roadstead water areas without assistance all the year round as well as for operations in the non-arctic freezing seas under convoy of icebreakers of higher category during the winter period, and capable of forcing the way in compact ice field up to 1,0 m thick. The total shaft power is under 11032 kW)

LL6

Icebreaker category notation (intended for icebreaking operations in harbour and roadstead water areas as well as in the non-arctic freezing seas with ice up to 1,5 m thick, and capable of forcing the way continuously running in compact ice field up to 1,0 m thick)

LL7

Icebreaker category notation (intended for icebreaking operations: on coastal routes of the arctic seas in winter and spring with ice up to 2,0 m thick and 2,5 m thick in summer and autumn; in the non-arctic freezing seas and mouths of rivers flowing into the arctic seas with ice up to 2,0 m thick, and capable of forcing the way continuously running in compact ice field up to 1,5 m thick. The total shaft power is not less than 11 mW)

LL8

Icebreaker category notation (intended for icebreaking operations: on coastal routes of the arctic seas in winter and spring with ice up to 3,0 m thick and in summer and autumn with no restrictions, and capable of forcing the way continuously running in compact ice field up to 2,0 m thick. The total shaft power is not less than 22 mW)

LL9

Icebreaker category notation (intended for icebreaking operations: in the arctic seas in winter and spring with ice up to 4,0 m thick and in summer and autumn with no restrictions, and capable of forcing the way continuously running in compact ice field up to 2,5 m thick. The total shaft power is not less than 48 mW)

LU1

Ice strengthening notation of the ship (independent navigation in small open ice in the non-arctic seas, short period, and in compact ice up to 0,4 m thick in a navigable passage astern an icebreaker)

LU2

Ice strengthening notation of the ship (independent navigation in small open ice in the non-arctic seas and in compact ice up to 0,55 m thick in a navigable passage astern an icebreaker)

LU3

Ice strengthening notation of the ship (independent navigation in small open ice in the non-arctic seas and in compact ice up to 0,7 m thick in a navigable passage astern an icebreaker)

LU4

Ice strengthening notation of the ship (independent navigation in young open arctic ice up to 0,6 m thick in winter and spring, and up to 0,8 m thick in summer and autumn. Navigation in a navigable passage astern an icebreaker in young arctic ice up to 0,7 m thick in winter and spring, and up to 1,0 m thick in summer and autumn)

LU5

Ice strengthening notation of the ship (independent navigation in young open arctic ice up to 0,8 m thick in winter and spring, and up to 1,0 m thick in summer and autumn. Navigation in a navigable passage astern an icebreaker in young arctic ice up to 0,9 m thick in winter and spring, and up to 1,2 m thick in summer and autumn)

LU6

Ice strengthening notation of the ship (independent navigation in young open arctic ice up to 1,1 m thick in winter and spring, and up to 1,3 m thick in summer and autumn. Navigation in a navigable passage astern an icebreaker in young arctic ice up to 1,2 m thick in winter and spring, and up to 1,7 m thick in summer and autumn)

LU7

Ice strengthening notation of the ship (independent navigation in young close arctic ice up to 1,4 m thick in winter and spring, and up to 1,7 m thick in summer and autumn with short ramming rammer of ice ridges. Navigation in a navigable passage astern an icebreaker in young arctic ice up to 2,0 m thick in winter and spring, and in biennial arctic ice up to 3,2 m thick in summer and autumn)

LU8

Ice strengthening notation of the ship (independent navigation in close young and biennial arctic ice up to 2,1 m thick in winter and spring, and up to 3,1 m thick in summer and autumn. Ramming rammer of ice ridges. Navigation in a navigable passage astern an icebreaker in biennial arctic ice up to 3,4 m thick in winter and spring, and in perennial ice in summer and autumn with no restrictions)

LU9

Ice strengthening notation of the ship (independent navigation in close perennial arctic ice up to 3,5 m thick in winter and spring, and up to 4,0 m thick in summer and autumn. Ramming rammer of ice ridges. Short ramming rammer of the young and biennial close ice segments)

(OMBO)

One-man-on the bridge-operated ship

(ESP)

Character letters of enhanced survey program

P1

Distinguishing mark of the ship carrying equipment for fire fighting aboard other ships (the ship carries supplementary systems, equipment and outfit for fire fighting aboard other ships, offshore drilling units, floating and shore structures and is in full compliance with the relevant requirements of the Rules in respect to these appliances proceeding from the degree of the ship’s equipment with these appliances which is determined on the basis of the list of fire fighting equipment and systems prescribed by the Rules)

P1V

Distinguishing mark for the ship carrying equipment for fire fighting
aboard other ships, offshore drilling units, floating and shore structures Distinguishing mark of the ship carrying equipment for fire fighting aboard other ships (the ship carries supplementary systems, equipment and outfit for fire fighting aboard other ships, offshore drilling units, floating and shore structures and is in full compliance with the relevant requirements of the Rules in respect to these appliances proceeding from the degree of the ship’s equipment with these appliances which is determined on the basis of the list of fire fighting equipment and systems prescribed by the Rules)

P2

Distinguishing mark of the ship carrying equipment for fire fighting aboard other ships (the ship carries supplementary systems, equipment and outfit for fire fighting aboard other ships, offshore drilling units, floating and shore structures and is in full compliance with the relevant requirements of the Rules in respect to these appliances proceeding from the degree of the ship’s equipment with these appliances which is determined on the basis of the list of fire fighting equipment and systems prescribed by the Rules)

P2V

Distinguishing mark of the ship carrying equipment for fire fighting aboard other ships (the ship carries supplementary systems, equipment and outfit for fire fighting aboard other ships, offshore drilling units, floating and shore structures and is in full compliance with the relevant requirements of the Rules in respect to these appliances proceeding from the degree of the ship’s equipment with these appliances which is determined on the basis of the list of fire fighting equipment and systems prescribed by the Rules)

P3V

Distinguishing mark of the ship carrying equipment for fire fighting aboard other ships (the ship carries supplementary systems, equipment and outfit for fire fighting aboard other ships, offshore drilling units, floating and shore structures and is in full compliance with the relevant requirements of the Rules in respect to these appliances proceeding from the degree of the ship’s equipment with these appliances which is determined on the basis of the list of fire fighting equipment and systems prescribed by the Rules)

REF

Character symbol denoting that the ship is intended for the carriage of cooled cargoes in the specially equipped cargo spaces and/or in the insulated containers and has the refrigerating plant classed by Russian Maritime Register of Shipping

SVP

Air-cushion vehicle

SVPa

Air-cushion vehicle amphibian type

SVPs

Air-cushion vehicle side-wall type

SPK

Hydrofoil craft

SWATH

Small water area twin hull ship

SS

High speed craft

UL

Ice strengthening notation of the ship (independent navigation in the Arctic in summer and autumn in light ice conditions and in the non-arctic freezing seas all the year round)

ULA

IIce strengthening notation of the ship (independent navigation in all areas of the World ocean in summer and autumn)

Х(*)

Character letter and distinguishing mark assigned to the refrigerating plant built in accordance with Rules and under the supervision of Russian Maritime Register of Shipping

Х*

Character letter and distinguishing mark of the refrigerating plant Character letter and distinguishing mark assigned to the refrigerating plant built in accordance with Rules and under the supervision of a classification body recognized by Russian Maritime Register of Shipping and afterwards the plant was classed by Russian Maritime Register of Shipping

(Х)*

Character letter in parentheses and distinguishing mark assigned to the refrigerating plant built without the supervision of a classification body recognized by Russian Maritime Register of Shipping or any other classification body and afterwards the plant was classed by Russian Maritime Register of Shipping

Х*_

Character letter and distinguishing mark assigned to the refrigerating plant built in accordance with the Rules and under the supervision of an IACS Member classification society but to which, due to incomplete compliance with the Rules, the symbol X* cannot be assigned during the process of transfer of class to Russian Maritime Register of Shipping

[1]

Subdivision distinguishing mark (one compartment flooded)

[2]

Subdivision distinguishing mark (two compartments flooded)

[3]

Subdivision distinguishing mark (three compartments flooded)

I

Service restriction notation (navigation in sea areas at seas in a seaway with wave height with 3 per cent probability of exceeding 8,5 m and with proceeding not more than 200 miles away from the place of refuge and with an allowable distance between the places of refuge not more than 400 miles)

II

Service restriction notation (navigation in sea areas at seas in seaway with wave height with 3 per cent probability of exceeding 7,0 m and with proceeding not more than 100 miles away from the place of refuge and with an allowable distance between the places of refuge not more than 200 miles)

IISP

Service restriction notation (river-sea navigation in a seaway with wave height with 3 per cent probability of exceeding 6,0 m and with proceeding from the place of refuge:

-           in open seas up to 50 miles and with an allowable distance between the places of refuge not more than 100 miles;

-            in closed seas up to 100 miles and with an allowable distance between the places of refuge not more than 200 miles)

III

Service restriction notation (port, roadstead and coastal navigation within limits established by Russian Maritime Register of Shipping in each case)

IIISP

Service restriction notation (river-sea navigation at seas in a seaway with wave height with 3 per cent probability of exceeding 3,5 m with due regard for particular restrictions on the area and conditions of navigation resulting from the wind and wave conditions of the basins with determination of a maximum allowable distance from the place of refuge which in no case should be not more than 50 miles)

+

Distinguishing mark of refrigerating plant capability to refrigerate of freeze of a non-precooled sea products (the cooling capacity of the refrigerating plant is sufficient for refrigeration or freezing of a non-precooled cargo on board ship during a period of time that provides preservation of that cargo)

A

Character symbol of the nuclear ship

ATO

Character symbol of the nuclear support vesse