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Clasification Society Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, January 2016 - Part 5 MAIN AND AUXILIARY MACHINERY - Chapter 1 General Requirements for Offshore Units - Section 2 Operating conditions

Section 2 Operating conditions

Parent topic: Chapter 1 General Requirements for Offshore Units

2.1 Inclination of unit

2.1.1 Main and essential auxiliary machinery is to operate satisfactorily under the conditions as shown in Pt 5, Ch 1, 2.1 Inclination of unit 2.1.1, Pt 5, Ch 1, 2.1 Inclination of unit 2.1.3 or Pt 5, Ch 1, 2.1 Inclination of unit 2.1.3.

Table 1.2.1 Inclination of ship untis and other surface type units

Installations,
components 		Angle of inclination, degrees,
see Note 1
Athwartships Fore-and-aft
Static Dynamic Static Dynamic
Main and auxiliary machinery
essential to the propulsion
and safety of the unit 		15 22,5 5
see Note 2 		7,5
Emergency machinery and
equipment fitted in accordance
with Statutory Requirements 		22,5 22,5 10 10
NOTES
1. Athwartships and fore-and-aft inclinations may occur simultaneously.
2. Where the length of the unit exceeds 100 m, the fore-and-aft static angle of inclination may be taken as:
degrees
where
L = length of unit, in metres, see Pt 4, Ch 1, 5 Definitions.

2.1.2 Any proposal to deviate from the angles given in Pt 5, Ch 1, 2.1 Inclination of unit 2.1.1, Pt 5, Ch 1, 2.1 Inclination of unit 2.1.3 or Pt 5, Ch 1, 2.1 Inclination of unit 2.1.3 will be specially considered taking into account the type, size and service conditions of the unit.

2.1.3 The dynamic angles of inclination in Pt 5, Ch 1, 2.1 Inclination of unit 2.1.1, Pt 5, Ch 1, 2.1 Inclination of unit 2.1.3 or Pt 5, Ch 1, 2.1 Inclination of unit 2.1.3 may be exceeded in certain circumstances, dependent upon type of unit and operation. The Builder is, therefore, to ensure that the machinery is capable of operating under these angles of inclination.

Table 1.2.2 Inclination of column-stabilised units

Installations,
components 		Angle of inclination in
any direction, degrees
Static Dynamic
Main and auxiliary machinery essential
to the propulsion and safety of the unit 		15 22,5
Ballast system, emergency machinery and
equipment fitted in accordance with statutory requirements 		22,5 22,5

Table 1.2.3 Inclination of self-elevating units

Installations,
components 		Angle of inclination in
any direction, degrees
Static Dynamic
Main and auxiliary machinery and equipment
essential to the propulsion and safety of the unit 		10 15
Emergency machinery and equipment fitted
in accordance with statutory requirements 		15 15
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