This publication edited by Mae L. Selo from Mechanical Engineering Dept of the Dalhousie University, is intended to provide a good update to selected underwater autonomy areas and is mainly aimed to the engineers and researchers both new to the field of marine robot autonomy as well as to experienced specialists.

The content also includes some historical overview of the development of the marine robots and general introduction to this rapidly expanding field, together with the professional discussion of the modern challenges and the impact they have on the required level of the intelligent autonomy.

The topics covered within this publication examine such the important aspects of the marine robotics as the path planning and advanced frameworks, as well as the machine learning and tolerance of the automatics faults. An excellent and quite rare volume for those seriously interested in this technically advanced field of marine, or better to say, underwater engineering.

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There are many U-boat bunkers still dominating their surroundings, so anyone wishing to explore these fascinating relics from Europe's turbulent past will have no great difficulties in finding them. Entering such stalwart fortresses while standing on the decks of the small U-boats that must have been a truly awe-inspiring experience, yet very limited number of images and publications have ever appeared on these massive monstrosities.

The U-Boot-Archiv holds well over 100000 photographs, but there are very few unpublished wartime pictures of the bunkers. Somehow, the fascination which did grow up around the U-boats did not actually stretch as far as embracing these impressive fortresses. The book will be greatly appreciated by the followers of the naval history of Second World War since they will find the answers to the so many questions about the bases where the submarines used to be repaired and replenished.

The book has been found very informative and recommended to the people interested with the history of the World War Two and German submarines participating. According to the numerous customer reviews, this one of the best publications on this matter available today.

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This is the revised release of "Grey Wolves of the Sea" devoted by the author, professional naval historian Heinz J. Nowarra, to the history of the most frequently built German types of submarine. The book is somewhat similar to the Squadron Signal giving the reader a brief history of the Type VII underwater boats and all subtypes.

Though all illustrations contained in the volume are black-and-white, which is quite obvious, they are still able to give a clear idea of how deadly and efficient those machines were - these photographs have been taken from the German Museum of U-Boats.

The format of presenting of the material is more or less similar to the one used in the "In Action" series by Squadron also available here; however, in this case the coverage is a bit more specific and the author is going in depth providing readers with the detailed information about the underwater fleet. Recommended reading for all people with the interest in submarines and naval weapon in general.

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A nice historical work prepared by the naval history expert Thomas Walkowiak. The book contains real pictures of the submarines serving in the United States Navy Fleer at the time of the Second World War. This one is expected to be of great interest to the professional naval historians and people who just like history and want to know a bit more about the USN role played in the World War Two.

The photographs presented within the volume have been supplemented by the professional and very interesting narrative from the author, providing required technical details of the submarines, some information on their armament, historical background, battles they participated in etc. Have a look and you will definitely find so much of the information related to the American underwater fleet of the WWII times you never had before.

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The USVs, i.e. unmanned surface vehicles are self-contained vessels capable of transiting on the water surface either fully autonomously or being remotely controlled. In the contrary to the traditional manned vessels that are commonly very large and so costly to construct, the unmanned surface vehicles are smaller and cost less.

The work presented in the pages of this book forms a part of a large project. The author of the volume starts with some introduction followed by the description of the instrumentation and data acquisition system, including sensors, data acquisition and processing, data fusion, motion observation, relevant experiments, and all other information that is expected to be highly appreciated by the specialists working in this field. The most of the information contained in this book is quite hard to be found in any other publication.

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I am an armchair submariner, but well aware that my admiration for these men runs the risk of lapsing into romantic mythologising. Despite attempting to maintain objective neutrality, I am continually struck by the widely held perception that submariners are a race apart from other naval seafarers. Viewed as heroes or villains subject to which side they are on (sometimes indeed regarded as villains by the senior officers of their own side), it is perhaps understandable that submariners have a reputation for independence of thought and action, and sheer downright bloody-mindedness.

The nature of their job encourages these traits. They are faced by threats from hostile forces: both man-made and elemental. Safe operation relies on every crew member doing their job, and for a crew to work effectively as a team requires a considerable degree of trust, tolerance and mutual respect. Survival depends on it. Max Horton, arguably the greatest British submariner, once said with characteristic bluntness, 'There is no margin for mistakes in submarines, you are either alive or dead. It is a remarkable feature of human existence that former enemies, veterans of past wars, meet later in a spirit of reconciliation and friendship. This should give hope for the future, but these men grow older and time is on no-one's side.

Those of us of a younger generation are then left with a void of lost knowledge and, by extension, lost understanding. The sudden death of my friend Karl Wahnig, a former U-boat crewman, brought home this painful reality. Yet the ancients believed a person never died if they were never forgotten. With that in mind, this book aims to be both testimony and tribute to the submariners of all nations, but is dedicated especially to the memory of those still missing; to those who are still on patrol.

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In 1944 Portsmouth Navy Yard launched three submarines and a fourth shortly thereafter. Prior to this, no shipyard had ever accomplished either feat. Those three first submarines, called Ronquil, Redfish, and Razorback were delivered at 1:00 PM and the Scabbard fish slid down building way into the Piscataqua River at 2:30 PM.

These four submarines would be included in the record-setting thirty-two submarines that the yard completed in 1944. No american shipyard has ever built so many submarines during one year, this is where the name of this study is coming from.

Prior to that triple launching. Fred White, the shipyard's master rigger, had concerns about floating three 1.800-ton submarines off their blocks at the same time. Three above mentioned submarines were jammed into the dry dock with little separation, and White and his line handlers were the ones responsible for ensuring that the submarines did not damage each other as they floated free of the blocks...

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Silent Killers - Submarines and Underwater Warfare

   The premise and promise of the submarine as a means to reach Earth's last frontier, the depths of the ocean, has grasped public attention for hundreds of years, and in the last century the potential of the submarine as an instrument of war has increasingly commanded the attention of military minds. From hand-cranks, steam, electrical batteries and diesel to nuclear power, and from hand-set explosive charges to nuclear missiles, the submarine and the armaments it can deploy have made it the world's ultimate naval weapon. The earliest wooden submarines have given rise to modern, titanium-hulled, fast, deep-diving, and stealthy "silent killers" that can strike from anywhere in the world where there is deep water — even through thick Arctic ice. As an archaeologist with an interest in the role of technology in shaping society, I have long been fascinated by the development of the submarine.That interest has been honed by incredible experiences and opportunities to work with submarines. This has included archaeological and historical research into the Type A Japanese Midget submarines of the 1930s and 1940s and the detailed analysis of a misidentified Japanese submarine in the Mariners' Museum in Newport News, Virginia (US), said to be a sponge-diving craft but actually one of Japan's top secret prewar prototypes for its Midget submarine force.

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