Section 1 General

1.1.1 This Chapter applies to self-propelled ships with machinery aft and non-propelled ships (barges) towed and/or pushed or carried alongside another ship, designed primarily for the carriage of:

1. general dry cargo; or

2. containers; or

3. bulk heavy dry cargoes (including ore) in holds;

4. either type Pt 4, Ch 1, 1.1 Application 1.1.1 or Pt 4, Ch 1, 1.1 Application 1.1.1.(b) and Pt 4, Ch 1, 1.1 Application 1.1.1.(c) type cargoes.

1.1.2 The structural requirements of this Chapter are intended to cover the midship region as defined inPt 3, Ch 3, 2.2 Definition of midship region for ships having a length not exceeding 135 m, a ratio of length to depth generally not exceeding 35 and a ratio of breadth to depth not exceeding 5.

1.1.3 Arrangements and scantlings forward and aft of the midship region are to comply with Pt 3, Ch 5 Fore End and Aft End Structureand Pt 3, Ch 6 Machinery Spaces so far as applicable; the remaining requirements of Part 3 are also to be complied with as appropriate to the intended arrangements.

1.1.4 For ships intended to carry dangerous goods in higher quantities as listed in Part 7 of the ADNR/ADN, see Pt 4, Ch 1, 12 Additional requirements for ships carrying dangerous goods. This Section also provides general guidance on the applicability and contents of the ADNR/ADN.

1.2.1 This Chapter provides for a basic structural configuration of a single deck hull with wide hatch openings and continuous hatch side coamings, a single or double skin arrangement in way of the cargo space and a single or double bottom arrangement. Consideration will be given to other arrangements.

1.2.2 Longitudinal or transverse framing may be adopted. Ships with a ratio of length to depth exceeding 25 or a length, L, over 70 m and having a double bottom, are generally to be constructed with longitudinal framing in the bottom. Alternatively, transverse framing may be adopted, provided suitable longitudinal stiffening is fitted to the bottom plating. If no double bottom is fitted, transverse framing with suitable longitudinal stiffening is, in general, to be applied.

1.2.3 The number and disposition of transverse bulkheads are to be as required byPt 3, Ch 7 Bulkheads. Additional bulkheads may have to be fitted to provide for sufficient transverse strength of the vessel.

1.3.1 The Regulations for classification and the assignment of class notations are given in Pt 1, Ch 2, 2 Character of classification and class notations.

1.3.2 Ships intended for the carriage of general cargoes in holds and on deck, with a loading equivalent to a stowage rate greater than 1,39 m³/tonne, corresponding to a specific weight of cargo less than 0,72 tonne/m³ and complying with the requirements of this Chapter will be eligible to be classed:

A1 I.W.W. Cargo Ship

A1 I.W.W. Cargo Barge

1.3.3 Ships intended for the carriage of general cargoes in holds and on deck, with a loading equivalent to a stowage rate greater than 1,39 m³/tonne, corresponding to a specific weight of cargo less than 0,72 tonne/m³and intended to carry containers and complying with the requirements of this Chapter will be eligible to be classed:

A1 I.W.W. Container Ship

A1 I.W.W. Container Barge.

1.3.4 Ships designed primarily for the carriage of bulk heavy dry cargoes (including ore) in holds, with a maximum specified stowage rate of 1,39 m³/tonne, corresponding to a minimum specific weight of cargo 0,72 tonne/m³ and complying with the requirements of this Chapter will be eligible to be classed:

A1 I.W.W. Bulk Carrier

A1 I.W.W. Bulk Carrier Barge.

1.3.5 Double hull ships built in compliance with Chapter 9, Section 9.1.0.80 of the ADN and complying with the additional requirements of Pt 4, Ch 1, 12 Additional requirements for ships carrying dangerous goods of this Chapter will be eligible to be classed:

where DG stands for Dangerous Goods.

1.3.6 Where applicable, combinations of the above class notations may be assigned, i.e.:

A1 I.W.W. DG Container Ship/Bulk Carrier.

1.3.7 The Regulations for classification and assignment of class notations are given in Pt 1, Ch 2 Classification Regulations to which reference should be made on the survey request form.

1.3.8 Where a ship has been specially designed, modified and/or arranged in accordance with the additional requirements for Zones 1 or 2, for service extension, for any special loading or discharging sequence or for navigation in ice, the appropriate class notation will be assigned.

1.4.1 For the information required, see Pt 3, Ch 1, 5 Information required. In addition, the following are to be supplied:

1. The draught desired in conjunction with the contemplated loading sequence, see also Pt 4, Ch 1, 2.1 Materials and grades of steel 2.1.1.

2. Cargo loading on inner bottom and if applicable, also on hatchways and deck, see Pt 4, Ch 1, 1.3 Class notation and Pt 3, Ch 3, 4 Design loading.

3. Container stack weights, see Pt 4, Ch 1, 9.1 Double bottom structure, general 9.1.2.

4. The maximum pressure head in service on tanks. Where tanks are interconnected with side tanks, this is to be clearly specified.

5. Details of tanks which will be solely used for water ballast in the light condition and which will be empty in the loaded condition.

1.5.1 The following symbols and definitions are applicable to this Chapter unless otherwise stated:

L, B, D, T and C _b are as defined in Pt 3, Ch 1, 6.1 Principal particulars

k_L is given in Pt 3, Ch 2, 1.3 Steel 1.3.2