Section 17 Classification of ships not built under survey

17.1.1 When classification is desired for a ship not built under the supervision of LR’s Surveyors, application should be made to the Committee in writing.

17.1.2 Periodical Surveys of such ships, when classed, are subsequently to be held as in the case of ships built under survey.

17.2.1 Plans showing the main scantlings and arrangements of the actual ship, together with any proposed alterations, are to be submitted for approval. These should comprise plans of the midship section, longitudinal section and decks, and such other plans as may be requested. If plans cannot be obtained or prepared by the Owner, facilities are to be given for LR’s Surveyor to obtain the necessary information from the ship.

17.2.2 In all cases, the full requirements of Pt 1, Ch 3, 4 Special Survey – Hull requirements are to be carried out. Ships over 15 years old are, in addition, to comply with the requirements of Pt 1, Ch 3, 5 Special Survey of ships over 15 years old – Hull requirements. In the case of tankers the requirements of Pt 1, Ch 3, 6 Special Survey of tankers – Hull requirements, Pt 1, Ch 3, 7 Special Survey of tankers with cargo tanks independent from the ship’s structure – Hull requirements or Pt 1, Ch 3, 8 Ships for liquefied gases under pressure and/or partially refrigerated are also to be carried out.

17.2.3 During the survey, the Surveyors are to satisfy themselves regarding the materials, the workmanship and verify the approved scantlings and arrangements. For this purpose, and in order to ascertain the amount of any deterioration, parts of the structure will require to be gauged as necessary. Particulars of the anchors, chain cables and equipment are to be submitted. Fire protection, detection and extinction are to be in accordance with the Rules, see Pt 6, Ch 3 Fire Protection, Detection and Extinction. Ships of recent construction will receive special consideration.

17.3.1 To facilitate the survey, plans of the following items (plans of piping are to be diagrammatic), together with the particulars of the materials used in the construction of the boilers, air receivers and important forgings, are to be furnished with:

• General pumping arrangements, including air and sounding pipes.
• Pumping arrangements at the forward and after ends of ships carrying liquefied gases or liquids in bulk and drainage of cofferdams and pump-rooms.
• General arrangement of cargo piping in tanks and on deck of ships carrying liquefied gases or liquids in bulk.
• Vapourlines of cargo tanks, with information of type, capacity and set pressures of the pressure/vacuum valves, should be submitted for consideration for tankers of Type I, II, IIA, III and IIIA.
• Ventilation arrangement of cargo and/or ballast pump-rooms and other enclosed spaces which contain cargo handling equipment.
• Bilge, ballast and fuel oil pumping arrangements in the machinery space, including the capacities of the pumps on bilge service.
• Arrangement of fuel oil pipes.
• Arrangement of fuel oil piping in connection with oil burning installations.
• Arrangement drawings of fuel oil service and other tanks not forming part of the ship’s structure, fittings on settling and service tanks and their heating coils need not be submitted, provided the construction is to the Surveyor’s satisfaction.
• Arrangement of compressed air systems and cooling water systems for main and auxiliary essential services.
• Fuel oil and cargo oil overflow systems, where these are fitted.
• Boiler feed systems and streamlines.
• Boilers which operate at a pressure greater than 3,4 bar (3,5 kgf/mm²).
• Air receivers.
• Line of shafting.
• Steering gear.
• Where the ship has been in service for a length of time greater than five years, plans of clutch and reversing gear and reduction gearing need not be submitted provided they are of a type of design accepted by LR or manufactured to a recognized National or International Standard.
• Plans of the propeller (including spare propeller, if supplied) need not be submitted provided the propeller has been manufactured in a manner acceptable to LR.
• Electrical circuits.

17.3.2 Plans additional to those detailed in Pt 1, Ch 3, 17.3 Machinery 17.3.1 are not to be submitted unless the machinery is of a novel or special character affecting classification.

17.3.3 Where remote and/or automatic controls are fitted to propulsion machinery and essential auxiliaries, a description of the scheme is to be submitted.

17.3.4 For new ships and ships which have been in service less than five years, calculations of the torsional vibration characteristics of the propelling machinery are to be submitted for consideration, as required for ships constructed under Special Survey. For older ships, the circumstances will be specially considered in relation to their service record and type of machinery installed. Where calculations are not submitted, the Committee may require that the machinery certificate be endorsed to this effect. When desired by the Owner, the calculations and investigation of the torsional vibration characteristics of the machinery may be carried out by LR upon special request.

17.3.5 The main and auxiliary machinery, feed pipes, compressed air pipes and boilers are to be examined as required at Complete Surveys. Working pressures are to be determined from the actual scantlings in accordance with the Rules.

17.3.6 The screwshaft is to be drawn and examined.

17.3.7 The steam pipes are to be examined and tested as required by Pt 1, Ch 3, 14 Steam pipes.

17.3.8 The bilge, ballast and fuel oil pumping arrangements are to be examined and amended, as necessary, to comply with the Rules.

17.3.9 Oil burning installations are to be examined as required at Complete Surveys and found, or modified, to comply with the requirements of the Rules; they are also to be tested under working conditions.

17.3.10 The electrical equipment is to be examined as required at Complete Surveys.

17.3.11 The whole of the machinery, including essential controls, is to be tried under working conditions to the Surveyor’s satisfaction.

17.3.12 Where classification is desired for a ship which is classed by another recognized Society, special consideration will be given to the scope of the survey.