A new illustrated history and analysis of Italy's World War II destroyers, a formidable foe for Allied forces attempting to attack the sea lanes between Italy and North Africa. The Italian Royal Navy (Regia Marine or RM) began the Second World War with one of the largest fleets in the world. Included in it was a total of 59 fleet destroyers, with others added during the war. These were a diverse collection of ships dating back to the First World War with large destroyers built to counter ships of similar size introduced in the French Navy (the RM's historical enemy), and medium-sized ships which constituted the bulk of the destroyer force. RM destroyers were built for high speed, not endurance since they were only expected to operate inside the Mediterranean. They were also well-armed, but lacked radar. During the war, RM destroyers fought well. With the exception of a small force based in Abyssinia which fought a series of battles in the Red Sea against the British, RM destroyers were active in the Mediterranean. The primary mission of the RM during the war was to keep the supply lines to North Africa open. The Italians were largely successful in this effort, and destroyers were key. RM destroyers were present at every fleet action with the British Mediterranean Fleet. The intensity of these actions is reflected by the fact that the RM lost 51 destroyers during the war.

High speed catamaran and multihull high speed marine vessel have become very popular in the last two decades. The catamaran has become the vessel of choice for the majority of high speed ferry operators worldwide. There have been significant advances in structural materials, and structural design has been combined with higher power density and fuel efficient engines to deliver ferries of increasing size. The multihull has proven itself to be a suitable configuration for active power projection across oceans as well as for coastal patrol and protection, operating at high speedd for insertion or retrieval with a low energy capability. At present there is no easily accessible material covering the combination of hydrodynamics, aerodynamics, and design issues including structures, powering and propulsion for these vehicles. Coverage in High Speed Catamarans and Multihulls includes an introduction to the history, evolution, and development of catamarans, followed by a theoretical calculation of wave resistance in shallow and deep water, as well as the drag components of the multihull. A discussion of vessel concept design describing design characteristics, empirical regression for determination of principal dimensions in preliminary design, general arrangement, and methods is also included. The book concludes with a discussion of experimental future vehicles currently in development including the small waterplane twin hull vessels, wave piercing catamarans, planing catamarans, tunnel planing catamarans and other multihull vessels.

An Azimuthing Stern Drive (ASD) tug or towboat is a high-performance vessel that is responsive, quick to maneuver and extremely powerful. In the hands of a skilled operator maneuvering these vessels looks effortless and seamless-smoothly spinning around, nimbly shifting position, having pinpoint control, all while the operator's hands move the control handles instinctively and naturally. This book takes the reader through an efficient learning sequence leading to that level of proficiency. Text, illustrations and practice drills create a clear understanding of ASD maneuvering principles and assist the reader in acquiring the intuitive hands-on feel required to operate these vessels. Each chapter covers a basic maneuvering element-steering, managing speed, stopping, hovering, lateral movement-and their application to light boat, barge and ship handling. This book is the first step for a professional mariner adding a new competency to his or her art of towing-driving a Z-drive.

Probability and Mechanics of Ship Collision and Grounding provides simplified analytical procedures for ship collision and grounding assessments, including probabilistic methods, an estimation of the energy released during collisions, and a prediction of the extent of damage on involved structures. An additional chapter is dedicated to current finite element analysis techniques that are used for estimating structural damage during ship collisions. The book encapsulates reliable and fast analysis methods for collision and grounding assessment, presenting tactics that have been extensively validated with experimental and numerical results. In addition, all described analysis methods include realistic calculation examples to provide confidence in their use.