Merchant Shipping Act, 1951 (Act No. 57 of 1951)

Schedules

Second Schedule

Protocol of 1978 Relating to the International Convention for the Safety of Life at Sea, 1974

Annex

Chapter VI : Carriage of Grain

Part B — Calculation of Assumed Heeling Moments

Section V — Alternative Loading Arrangements for Existing Ships
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(A)        GENERAL

A ship loaded in accordance with either Subsection (B) or Subsection (C) below shall be considered to have intact stability characteristics at least equivalent to the requirements of paragraph (b) of Regulation 4 of this Chapter. Documents of authorization permitting such loadings shall be accepted under the provisions of paragraph (e) of Regulation 10 of this Chapter.

For the purpose of this Part, the term “Existing Ship” means a ship, the keel of which is laid before the date of coming into force of this Chapter.

 

(B)        STOWAGE OF SPECIALLY SUITABLE SHIPS

 

(a)Notwithstanding anything contained in Part B of this Chapter, bulk grain may be carried without regard to the requirements specified therein in ships which are constructed with two or more vertical of sloping grain-tight longitudinal divisions suitably disposed to limit the effect of any transverse shift of grain under the following conditions:
(i)As many holds and compartments as possible shall be full and trimmed full;
(ii)for any specified arrangement of stowage the ship will not list to an angle greater than 5 degrees at any stage of the voyage where—
(1)in holds or compartments which have been trimmed full the grain surface settled 2 per cent by volume from the original surface and shifts to an angle of 12 degrees with that surface under all boundaries of these holds and compartments which have an inclination of less than 30 degrees to the horizontal;
(2)in “partly filled compartments or holds” free grain surfaces settle and shift as in subparagraph (ii) (1) of this paragraph or to such larger angle as may be deemed necessary by the Administration, or by a Contracting Government on behalf of the Administration, and grain surfaces if overstowed in accordance with Regulation 5 of this Chapter shift to an angle of 8 degrees with the original levelled surfaces. For the purpose of subparagraph (ii) of this paragraph shifting boards, if fitted, will be considered to limit the transverse shift of the surface of the grain;
(iii)the master is provided with a grain loading plan covering the stowage arrangements to be adopted and a stability booklet, both approved by the Administration, or by a Contracting Government on behalf of the Administration, showing the stability conditions upon which the calculations given in subparagraph (ii) of this paragraph are based.

 

(b)The Administration, or a Contracting Government on behalf of the Administration, shall prescribe the precautions to be taken against shifting in all other conditions of loading of ships designed in accordance with paragraph (B) (a) of this Section which meet the requirements of subparagraphs (ii) and (iii) of that paragraph.

 

(C)        SHIPS WITHOUT DOCUMENTS OF AUTHORIZATION

A ship not having on board documents of authorization issued in accordance with Regulations 4 and 10 of this Chapter may be permitted to load bulk grain under the requirements of Subsection (B) of this Section or provided that—

 

(a)all “filled compartments” shall be fitted with centreline divisions extending for the full length of such compartments which extend downwards from the underside of the deck or hatch covers to a distance below the deck line of at least one-eighth of the maximum breadth of the compartment or 2,4 metres, whichever is the greater except that saucers constructed in accordance with Section II of Part C may be accepted in lieu of a centreline division in and beneath a hatchway;

 

(b)        all hatches to “filled compartments” shall be closed and covers secured in place;

 

(c)        all free grain surfaces in “partly filled compartments” shall be trimmed level and secured in accordance with Section II of Part C;

 

(d)throughout the voyage the metacentric height after correction for the free surface effects of liquids in tanks shall be 0,3 metre or that given by the following formula, whichever is the greater:

 

 

Where—

L =        total combined length of all full compartments;

B =        moulded breadth of vessel;

SF =        stowage factor;

Vd =        calculated average void depth as per paragraph (a) (i) of Section I (A) of this Part; and

Δ =        displacement.