Section 6 Building tolerances and associated repairs
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Naval Ships, January 2023 - Volume 1 Ship Structures - Part 3 Design Principles and Constructional Arrangements - Chapter 1 General - Section 6 Building tolerances and associated repairs

Section 6 Building tolerances and associated repairs

Parent topic: Chapter 1 General

6.1 Overview

6.1.1 The general tolerances for new building and subsequent repairs are to be in accordance with the requirements of the Naval Survey Guidance for Steel Ships, or an otherwise specified and agreed standard.

6.1.2 Tolerances to be used for constructional misalignment for all materials are to be discussed between Owners/Builders and the Surveyor and the Standards agreed subject to the requirements of Vol 1, Pt 3, Ch 1, 6.1 Overview 6.1.1. The permitted degree of inaccuracy/misalignment will vary according to whether the defect is:

  1. In primary structure.

  2. In secondary structure.

  3. Equipment supporting structure or underwater plate near acoustic equipment.

  4. Aesthetically pleasing

6.1.3 The requirements of these Rules are primarily concerned with ensuring items Vol 1, Pt 3, Ch 1, 6.1 Overview 6.1.2 and Vol 1, Pt 3, Ch 1, 6.1 Overview 6.1.2.(b). The equipment manufacturer will be able to give advice on the maximum noise or misalignment that can be tolerated from item Vol 1, Pt 3, Ch 1, 6.1 Overview 6.1.2.(c). Aesthetics, item Vol 1, Pt 3, Ch 1, 6.1 Overview 6.1.2.(d), are at the discretion of the Owner.

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