SAILING SHIP INTACT STABILITY-CRITERIA

The comeback in recent years to the world's oceans of large displaceme nt sailing vessels has increased the interest in design requirements. At the same time, there have been a number of accidents and capsizings of sailing vessels that investigators have attributed to a lack of ad equate intact stability. In an attempt to identify improved stability criteria for large sailing vessels, using the U.S. Coast Guard trainin g barque Eagle as a model, the authors have conducted a worldwide sear ch of the literature and other sources to gather a body of criteria fo r comparison with each other and then with the existing standards for the Eagle. The results of this research are presented and illustrated, including the domain of interaction between ship motion and sail forc es. The methods presented herein could be a useful contribution to the safe design and operation of large sailing vessels.