Page 48 - Ship Construction.DJ Eyres 6Ed

Ch04-H8070.fm Page 37 Wednesday, October 18, 2006 6:52 AM
Classification Societies 37
Rules and Regulations. Ships which the Society agree need not be fitted
with anchor and mooring equipment may be assigned the character letter N
in lieu of the character figure 1. The Maltese cross mark is assigned to new
ships constructed under the Society’s Special Survey, i.e. a surveyor has
been in attendance during the construction period to inspect the materials
and workmanship.
There may be appended to the character symbols, when considered neces-
--- ใช้เพื่อการศึกษาเท่านั้น---
sary by the Society or requested by the owner, a number of class notations.
These class notations may consist of one or a combination of the following.
Type notation, cargo notation, special duties notation, special features
งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี
notation, service restriction notation. Type notation indicates that the ship
has been constructed in compliance with particular rules applying to that
type of ship, e.g. 100A1 ‘Bulk Carrier’. Cargo notation indicates the ship has
been designed to carry one or more specific cargoes, e.g. ‘Sulphuric acid’.
This does not preclude it from carrying other cargoes for which it might
be suitable. Special duties notation indicate the ship has been designed for
special duties other than those implied by type or cargo notation, e.g.
‘research’. Special features notation indicates the ship incorporates special
features which significantly affect the design, e.g. ‘movable decks’. Service
restriction notation indicates the ship has been classed on the understand-
ึ
ing it is operated only in a specified area and/or under specified conditions,
e.g. ‘Great Lakes and St. Lawrence’.
The class notation LMC indicates that the machinery has been con-
structed, installed and tested under the Society’s Special Survey and in accor-
dance with the Society’s Rules and Regulations. Various other notations
relating to the main and auxiliary machinery may also be assigned.
Vessels with a refrigerated cargo installation constructed, installed and
tested under the Society’s Special Survey and in accordance with its Rules
and Regulations may be assigned the notation Lloyds RMC. A classed
liquefied gas carrier or tanker in which the cargo reliquefaction or cargo
refrigeration equipment is approved, installed and tested in accordance
with the Society’s Rules and regulations may be assigned the notation
Lloyds RMC (LG).
Where additional strengthening is fitted for navigation in ice conditions
an appropriate notation may be assigned.

Classification of Ships Operating in Ice

Classification societies such as Lloyds Register and a number of Adminis-
trations whose waters experience icing have for many years had regulations
defining and categorizing ice conditions and specifying design and standard
requirements for ships operating in ice. Lloyds Register have assigned spe-
cial features notations to many existing ships for operation in first-year ice