The submarine was the invisible but formidable weapon of the Royal Navy during World War II. This book examines the three major classes – 'S', 'T' and 'U' – detailing their design, development and modification. The major submarine engagements of the war are recounted, including the Norwegian campaign, the battle of Malta in March 1942, Operation Pedestal, and many other engagements in all theatres between the British subs, German U-Boats and Japanese subs. Using many previously unpublished sources and his own extensive underwater explorations, Innes McCartney gives a highly detailed account of the British submarine.

An “indispensable” guide to the Royal Navy’s submarines through 1945, with numerous photos and original plans (The Naval Review). The Royal Navy didn’t invent the submarine—but in 1914, Britain had the largest submarine fleet in the world, and at the end of World War I it had some of the largest and most unusual of all submarines—whose origins and designs are all detailed in this book. During the First World War they virtually closed the Baltic to German iron ore traffic, and blocked supplies to the Turkish army at Gallipoli. They were a major element in the North Sea battles, and fought the U-boat menace. During World War II, US submarines were known for strangling Japan, but lesser known is the parallel battle by British submarines in the Mediterranean to strangle the German army in North Africa. Like their US counterparts, interwar British submarines were designed largely with the demands of a possible Pacific War, though that was not the war they fought. The author also shows how the demands of such a war, fought over vast distances, collided with interwar British Government attempts to limit costs. It says much about the ingenuity of British submarine designers that they met their requirements despite enormous pressure. The author shows how evolving strategic and tactical requirements and evolving technology produced successive types of design. British submariners contributed much to the development of anti-submarine tactics and technology, beginning with largely unknown efforts before World War I. Between the wars, they exploited the new technology of sonar (Asdic), and as a result pioneered submarine silencing, with important advantages to the US Navy as it observed the British. They also pioneered the vital postwar use of submarines as anti-submarine weapons, sinking a U-boat while both were submerged. Heavily illustrated with photos and original plans and incorporating much original analysis, this book is ideal for naval historians and enthusiasts. “Sure to become the standard reference for British submarine development for years to come” —Warship

Naval warfare in the Pacific changed completely with the Japanese attack on Pearl Harbor in 1941. The strategic emphasis shifted from battleships to much more lethal, far-ranging weapons systems; one of these was the submarine. This book details the design and development, classes, weapons and equipment, tactics and operational history of the US submarine in World War II. Detailed tables, photographs, and superb color plates depict the force that had an effect far beyond its size - the submarine accounted for 55% of all Japanese shipping losses, despite suffering the highest percentage loss of any unit of the United State Armed Forces in World War II.

The history of the development of submarines covered in this book spans the most tumultuous years of the 20th century. When the little Holland No. 1 was launched in 1901, few could guess that the submarine would become the most potent weapon of war ever developed.

Packed with photos and stunning new artwork, this is a concise history of the Royal Navy's wartime-built destroyers, the backbone of the fleet.

This, the first of two volumes on Germany's World War II U-boats, traces their development from the early U-boats of the Kaiser's Navy, the prohibition on Germany having U-boats following the Armistice in 1918 and the subsequent Treaty of Versailles, the secret development of U-boats using a 'cover-firm' in Holland, culminating in the formation of the 1st U-boat Flotilla in 1935 with the modern Type II. The operational history section includes examples from the Classes Type VIIA, Type VIIB, VIID, VIIE and VIIF before concentrating on the mainstay of the U-boat arm, the Type VIIC. Comparisons are also made with the standard allied submarines, their strengths, weaknesses and U-boat tactics.

The submarine was as formidable a weapon for the Royal Navy in World War II as for the other main combatant nations. The first half of this book explores the conception, design, development and subesequent evolution of the three major classes: the "S", "T", and "U". The "S" Class submarine was originally conceived in the 1920s, specifically for deployment in narrow seas. As the war progressed the submarine was modified to increase its diving capability and fuel-carrying capacity, and radar and many other features were added. The "S" Class served in all theaters from the North Atlantic to the Pacific with notable success, in many cases surviving very severe damage. The "T" Class submarine was originally conceived for operations in the Far East, thus was one of the largest types to be built and serve in World War II. The development of the "T" Class during the war was sometimes at the expense of its underwater stability and in the Mediterranean theater half of the submarines that were deployed sunk. The "U" Class include Upholder, the most successful British submarine of World War II. The second half of the book surveys the major submarine actions of the war, including the Norwegian Campaign, operatins to save Malta and many other engagements in all theaters involving British submarines, German U-Boats and the Japanese. The author has accessed many previously unpublished sources and draws on his own extensive underwater research to give a highly detailed and informed account of the British submarine.