ClassNK amended the Rules/Guidance for High Speed Craft

The Nippon Kaiji Kyokai (ClassNK) amended its Rules/Guidance for High Speed Craft.

The Rules for High-Speed Craft in December 2022 have undergone partial amendments in various sections.

Here is a summary of the amendments:

Part 2: Class Surveys Amendment 2-1

1.1.3 Occasional Surveys

1.3.1 Class Survey conducted through Remote Survey

Part 2: Class Surveys Amendment 2-2

1.2 Preparation for Surveys and Others

1.2.5 Procedure for Tests, Wear and Tear, etc.

2 Inclining Test

Part 8: Buoyancy, Stability, and Subdivision

1.7 Inclining and Stability Information

1.7.3 Amendments to Stability Information Booklet

Part 9: Machinery Installations

Chapter 2: Reciprocating Internal Combustion Engines

2.3 Associated Installations

2.3.2 Starting Arrangements

3: Gas Turbines

3.3 Safety Devices

3.3.2 Shut-down Devices

3.3.3 Alarms

3.3.5 Additional Safety Devices

3.4 Associated Installations

3.4.2 Starting Arrangements

Part 10: Electrical Installations

Chapter 2: Electrical Installations and System Design

2.8 Accumulator Batteries

Part 11: Electrical Installations - Fire Protection, Detection, Extinguishment, and Means of Escape

Chapter 1: General Amendment to the Guidance for High-Speed Craft

The Guidance for High-Speed Craft has also been partially amended. Here are the details:

Part 14: Special Requirements for Craft Engaged in International Voyage

1.1.1 Application

Part 2: Class Surveys Amendment 2-2

1.1 Surveys

Part 2: Class Surveys Amendment 2-3

Chapter 2: Classification Surveys

2.5 Alterations

2.5.1 Survey Requirements

Part 2: Class Surveys Amendment 2-4

Chapter 3: Periodical Surveys and Planned Machinery Surveys

3.6 Annual Surveys for Machinery

3.6.2 Performance Tests

3.7 Intermediate Surveys for Machinery

3.8 Special Surveys for Machinery

Part 10: Electrical Installations

1.1.5 Drawing and Data

1.2.1 Shop Tests

These amendments bring significant changes to the rules and guidelines for high-speed craft, covering various aspects such as surveys, stability information, machinery installations, electrical installations, and fire protection.

For more information, please see the document below (available only to subscribers):

Rules/Guidance for High Speed Craft