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ClassNK Releases PrimeShip-HULL 2026.1

ClassNK
Introducing the evaluation function of CSR-B&T; enhancing design and assessment efficiency through a unified interface and automation. Pictured: Screen image of the integrated PrimeShip-HULL.

Published Jun 1, 2026 5:01 PM by The Maritime Executive

[By: ClassNK]

ClassNK has released PrimeShip-HULL 2026.1, the latest version of its hull structure assessment software for shipbuilders and design firms. This release integrates the evaluation functions for IACS Common Structural Rules for Bulk Carriers and Oil Tankers (CSR-B&T) into the new PrimeShip-HULL platform, which is compliant with the Rules for the Survey and Construction of Steel Ships, Part C. Previously, when applying the Rules for the Survey and Construction of Steel Ships, Part C related to hull structure, and when applying the CSR-B&T, it was necessary to use different versions of PrimeShip-HULL for each. With this release, PrimeShip-HULL2026.1 offers a unified interface that can be used consistently across different rule requirements and ship types, improving convenience and operational efficiency.

Background

ClassNK released PrimeShip-HULL (new platform) in 2022, compliant with the comprehensive revision of Part C of its Rules. Since then, ClassNK has continuously enhanced usability by incorporating feedback from designers, introducing automation features, and reducing design man-hours.

Key Features

  • Integrated assessment functions for CSR-B&T, enabling both the Part C of its Rules and CSR-B&T assessments to be carried out with the same user experience and operational workflow

  • Improved usability and design efficiency through an intuitive UI and comfortable UX, automation functions for workload reduction, and improved data interoperability with 3D CAD systems

Availability
PrimeShip-HULL users can download it from the PrimeShip-HULL support site: https://portal.classnk.or.jp/portal/index.jsp

For further details about the software and new user applications, please visit the following page: https://www.classnk.or.jp/hp/en/activities/primeship/primeship_hull.html

ClassNK will continue its efforts to enhance the usability of PrimeShip-HULL and to support the efficiency of ship structural design and assessment processes.

The products and services herein described in this press release are not endorsed by The Maritime Executive.