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The Annapolis book of seamanship
\"The art of sailing, maneuvering, and preserving a ship or a boat in all positions and under all reasonable circumstances.\" With the addition of the words, \"and some unreasonable circumstances, too,\" this definition of \"seamanship\" is as valid today as when the first edition of this book was published in 1983. This edition has been extensively updated with new or updated text, and many new photographs.
BOOK
A Study of the Application Barriers to the Use of Autonomous Ships Posed by the Good Seamanship Requirement of COLREGs
Autonomous ships are gaining in importance and are expected to shape the future of the global shipping industry. This evolutionary shift raises serious issues about compliance with the International Regulations for Preventing Collisions at Sea 1972 (COLREGs). This paper reviews the literature on autonomous ships from the perspective of the obligations of good seamanship imposed by COLREGs. The authors conclude that to facilitate the introduction of autonomous ships, the application barriers presented by COLREGs need to be analysed. With this goal, this paper presents a perspective from navigational practice. Four nautical scientists and two deck officers were invited to give their opinions. The analysis indicates that COLREGs require further elaboration and amendments to eliminate uncertainty of interpretation. In particular, the paper highlights the need to amend the ‘look-out’ rule (COLREGs Rule 5) to permit look-out by ‘computer vision’ alone while, at the same time, preserving the distinction between vessels navigating in restricted visibility and in sight of one another.
Journal Article
The complete yachtmaster : sailing, seamanship and navigation for the modern yacht skipper
The Complete Yachtmaster has been a bestseller since first publication and has established itself as the standard reference for Yachtmaster students as well as skippers of all levels of experience. In this fully revised eighth edition, Tom Cunliffe brings together all the essentials of modern cruising in one volume. Subjects include an analysis of what makes a good skipper, the theory and practice of sailing, seamanship, navigation including chart plotters and PCs, meteorology, heavy weather, yacht stability and coping with emergencies. Substantial updates for this edition include new material on navigation using tablets. Also includes new photography throughout. The Complete Yachtmaster promotes each subject as an integral part of the whole. It guides examination candidates as authoritatively and reassuringly through the RYA syllabus as a sea pilot bringing a ship to harbour. Required reading for all skippers whether on board or in the classroom.
Book
Boating skills and seamanship
Provides a guide to boating, including such topics as knot tying, using charts, radio communications, equipping a powerboat, and engine maintenance.
Book
Safety Assessment and Experience-Building Scheme Using Simulators for Automatic Collision Avoidance Algorithm
Collision avoidance algorithms are a critical function of Maritime Autonomous Surface Ships (MASS). The navigation rules governing collision avoidance are stipulated by the International Regulations for Preventing Collisions at Sea (COLREGs). To evaluate an automatic collision avoidance algorithm through numerical simulations, a comprehensive set of scenarios and evaluation metrics is required. For fair certification, objective evaluation criteria are essential; however, a well-known challenge is the difficulty in quantitatively assessing collision avoidance navigation. This difficulty arises from the concept of “good seamanship,” as outlined in COLREGs, which relies on the expertise, responsibility, and established practices of ship officers. In this study, we propose an evaluation framework that integrates subjective expert judgment from ship officers alongside quantitative evaluation indicators. A fast-time ship simulator and a ship-handling simulator are employed to assess the algorithms under comprehensive scenarios and from multiple evaluation perspectives. Simulation results from 84 scenarios, including those based on Section II of COLREGs along with additional scenarios, will be analyzed to identify a collision avoidance algorithm for MASS capable of ensuring safe navigation while eliminating behaviors hazardous to surrounding vessels. Ship officers assess situations not based on trajectories or time-series indicators such as the closest point of approach (CPA), but rather on radar observations and optical information from the bridge. Hence, a ship-handling simulator with a 360-degree field of view and navigation equipment can be employed to evaluate safety in a way that closely resembles real MASS operations. The performance of collision avoidance algorithms in various situations within the fast-time ship simulator and the ship-handling simulator is evaluated based on consensus among ship officers. This approach enables safety evaluation of collision avoidance in challenging situations where automated scoring by objective metrics alone may be inadequate. The insights gained through this approach are used to refine scenarios, enhance evaluation indicators, and develop assessment criteria. By establishing this iterative feedback loop, we propose an evaluation scheme for automatic collision avoidance algorithms. The proposed approach, which combines both objective metrics and subjective expert judgment, fosters an experience-based assessment structure.
Journal Article
