Groningen, Netherlands • Naval Architecture • Class Approval Support

Reliable stability engineering for real ships, real approvals and real operations.

Normship B.V. supports shipowners, managers and design offices with stability booklets, draft increase studies, loading instrument documentation, NAPA-based calculations and practical class approval packages.

20+ years experience
200+ vessels with ShipLCOM use
Class RINA • NK • ABS • DNV workflows
Technical ship stability illustration

What we do

Engineering services for owners, managers and yards

NAPA calculation environment illustration Official NAPA User

NAPA Based Engineering

Normship performs stability and hydrostatic work with NAPA-based workflows, allowing efficient booklet updates, draft increase studies, grain stability, damage stability and loading instrument source data preparation.

Advanced stability solutions illustration Advanced Stability Solutions

Advanced Stability Solutions

From intact and grain stability to damage stability applicability checks, lightweight change evaluation and special operational cases, Normship focuses on solutions that are technically correct and understandable for owners, class and flag.

Concept and basic design illustration Concept / Basic Design

Concept & Basic Design

Normship supports concept and basic design packages including hull form input, general arrangement support, freeboard planning, equipment number, structural scantling support and class-ready technical documentation.

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Is your vessel suitable for draft increase?

Run a free preliminary screening to get an initial engineering direction before full feasibility work.

Open Draft Check

News & Current Work

Recent engineering focus

Draft increase approval packages

Freeboard calculations, stability booklet updates, grain stability, structural checks, equipment number and loading instrument documentation for vessels requiring increased operational draft.

Hatch cover walkway & crew protection

Preparation of class-ready walkway arrangements, safety access concepts and supporting drawings in line with load line and crew protection expectations.

Grain and lightweight change studies

Assessment of grain heeling, tweendeck removal effects, lightweight changes and operational limits for updated loading manuals and stability documentation.

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Naval architect working on stability calculations

About Normship

Founded by Özkan Yıldırım

Normship B.V. is led by Özkan Yıldırım, a naval architect and stability engineer with more than two decades of hands-on experience in ship design, stability, loading instruments and class approval processes.

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