Stability Under Pressure: Decision-Making and Control at Sea

Stability Under Pressure explores one of the most critical realities at sea - what happens when stability is no longer a calculation, but a developing condition.

In real operations, stability is not lost in theory.
It is lost in time.

This book moves beyond technical definitions and examines how stability is experienced, interpreted and managed under real conditions. It focuses on the gap between what is calculated and what actually happens onboard, where decisions must be made with incomplete information and limited margins.

Through operational perspectives, modern scenarios and detailed case studies - including Herald of Free Enterprise, Estonia, Costa Concordia and Scandinavian Star - the book reveals how small deviations develop into critical situations, and how decision-making under pressure determines the outcome.

Rather than presenting stability as a static condition, the book shows how it evolves:

• through loading and operational changes
• through environmental interaction
• through damage, firefighting and system response
• through human perception and leadership under pressure

The focus is not only on what happens when stability is lost, but on how it begins to change long before it becomes obvious.

Written from an operational standpoint, this is not a book about calculations alone.
It is about awareness, timing and control.

• Ship officers and crew
• Maritime instructors and training centers
• Safety and operations managers
• Anyone working in high-risk maritime environments

• Moves beyond theory into real operational conditions
• Combines technical understanding with decision-making under pressure
• Focuses on early recognition - before loss of control
• Built on real incidents, real operations and real consequences

Because at sea, stability is not something that simply exists.
It is something that must be maintained.

Rolf Karlsson is a Captain and Maritime Safety Instructor with extensive experience in maritime operations, search and rescue, and crisis management. His work is grounded in real-world incidents, operational leadership and training under demanding conditions.