Model Experiments of Ship Capsize in Astern Seas

Capsizing experiments were carried out in both long-crested irregular and short-crested irregular waves. Here a self-propelled model of purse seiner and one of container ship ran with auto pilots in following and quartering waves. To examine drafts of operational guidance that were recently proposed to the IMO, dangerous conditions in ship speed and heading angle were identified. The experimental results demonstrate effects of short-crested wave nature on capsize in following and quartering waves. In addition, effects of group wave were also discussed.