ISO 17682 pdf download

ISO 17682 pdf download

ISO 17682 pdf download Ships and marine technology — Methodology for ship launching utilizing air bags
This International Standard specifies general guidelines for ship launching utilizing air bags, includingthe specification of the ship and facilities such as air bags, slipway, towing arrangements, the launchingprocedure,and safeguards during the ship launching.
This International Standard is applicable to ships meeting the requirements of 4.1 and utilizing air bagsfor launching.
2 Normative references
The following documents, in whole or in part are normatively referenced in this document and arindispensable for its application. For dated references, only the edition cited applies. For undatedreferences, the latest edition of the referenced document (including any amendments) applies.
ISO 2408,Steel wire ropes for general purposes – Minimum requirementsISO 14409:2011, Ships and marine technology — Ship launching air bags
3Terms and definitions
For the purposes ofthis document, the following terms and definitions apply.
3.1ship launchingconveying a ship from a site to water so that the ship becomes buoyant
ship shiftingmoving a ship from one place to another, such as from the building berth to near the water
ramp which is used for launching ships,including the part that extends into the water
Note 1 to entry: The shore-side portion, including the berth,is called the main slipway, while the part that extendsinto the water is called the auxiliary slipway.
transferring from docking blocks
process that encompasses placing the air bags under the ship, filling the air bags to raise the ship off thebuilding blocks, removing the blocks and letting the ship rest on the air bags
ground anchor
structure that is in front of the berth and is constructed in the berth, used for mooring the ship, thehemicycle part above the ground is used to fasten the steel wire ropes and tow the ship
ship length
longitudinal distance,in metres, measured from the forward extreme to the aft-most part of the ship
Specification for launching ships
4.1A ship shall have a flat bottom and be suitable for putting down, filling and rolling air bags. Thebottom acreage of the ship shall be large enough to provide proper contact with the air bags in order toensure adequate bearing capacity.
4.2According to the weight and the length of the ship, the ship to be launched is to be classed as follows.
a) class I: ships of not more than 1 000 tons in weight or not more than 90 m in length (LOA);
bclass Il: ships of more than 1 000 tons but less than or equal to 3 000 tons in weight, or more than90 m but less than or equal to 120 m in length (LOA);
class Ill: ships of more than 3 000 tons but less than or equal to 5 000 tons in weight, or more thanc120 m but less than or equal to 150 m in length (LOA);
class IV: ships of more than 5 000 tons in weight, or more than 150 m in length (LOA)d)
4.3The underwater valves and major equipments are to be installed in position, tested, inspected andapproved by shipyard or shipowner.
4.4 All burrs and weld beads on the ship’s bottom plates and all appendages shall be ground smoothand inspected.
4.5 In all underwater compartments, all the hot work on the shell plating, blasting and painting andcompartment tightness tests shall have been completed and approved by shipowner or classificationsociety. All loose items shall be secured. All mooring equipment and fittings are to be installed.

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