2 Minimum power lines
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Marine Environment Protection Committee - Resolution MEPC.232(65) – 2013 Interim Guidelines for Determining Minimum Propulsion Power to Maintain the Manoeuvrability of Ships in Adverse Conditions – (Adopted on 17 May 2013)Amended by Resolution MEPC.255(67) - Annex – 2013 Interim Guidelines for Determining Minimum Propulsion Power to Maintain the Manoeuvrability of Ships in Adverse Conditions - Appendix – Assessment Procedures to Maintain the Manoeuvrability Under Adverse Conditions, Applicable During Phase 0 and Phase 1 of the EEDI Implementation - 2 Minimum power lines

2 Minimum power lines

  2.1 The minimum power line values of total installed MCR, in kW, for different types of ships should be calculated as follows:

 Minimum Power Line Value = a x (DWT) + b

Where:

DWT is the deadweight of the ship in metric tons; and
a and b are the parameters given in table 1 for tankers, bulk carriers and combination carriers.

Table 1 Parameters a and b for determination of the minimum power line values for the different ship types

Ship type a b
Bulk carrier which DWT is less than 145,000 0.0763 3374.3
Bulk carrier which DWT is 145,000 and over 0.0490 7329.0
Tanker 0.0652 5960.2
Combination Carrier see tanker above

 The total installed MCR of all main propulsion engines should not be less than the minimum power line value, where MCR is the value specified on the EIAPP Certificate.

Parent topic: Appendix – Assessment Procedures to Maintain the Manoeuvrability Under Adverse Conditions, Applicable During Phase 0 and Phase 1 of the EEDI Implementation
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