Boats in 3D

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Author : IglooBooks
Genre : Juvenile Nonfiction

Summary : Explore the layers of Pirate Ship, from keel to crow's nest. Inside this book lurks a terror of the seven seas! Press out the cleverly shaped chunky pages to reveal the decks of a pirate ship! Explore your very own vessel, from keel to crow's nest, and discover astonishing facts about the pirating life. Complete with press-out cannons, mast, and scoundrel crew, this is a book, 3D model and play scene all rolled into one.

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Author : Waldemar Góralski
Genre : History

Summary : The Type II U-boat - The latest book in Super Drawings in 3D series presents a brief description of the German Type II coastal submarines along with their general characteristics. Since "an image can speak a thousand words", the text is accompanied by 160 renderings which show the external appearance of all four sub-types including details such as various conning towers and armament variants as well as other fittings. Blueprints of the four sub-types in 1:144 scale (general and isometric views) are included on a separate sheet. This publication is an invaluable help to any modeler interested in building a replica of any of the Type II submarines.

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Author : Hugo du Plessis
Genre : Sports & Recreation

Summary : First published forty years ago, this valuable reference work is written in a non-technical style with practical advice on working with fiberglass to make repairs and improvements correctly to extend the life of your boat. It explains the peculiar nature of fiberglass, its durability, its weaknesses, where its likely to fail, the effects of use and the weather, plus the latest research into causes of the biggest worry for owners - blistering and osmosis.

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Author : Waldemar Góralski
Genre : Submarines (Ships)

Summary : The type VIIC was a slightly modified version of the successful VIIB. They had basically the same engine layout and power, but were slightly larger and heavier which made them not quite as fast as the VIIB. 5 torpedo tubes (4 at the bow and one at the stern) were installed in all but the following boats; only two bow tubes (U-72, U-78, U-80, U-554 and U-555) and no stern tube (U-203, U-331, U-351, U-401, U-431 and U-651). The VIIC was the workhorse of the German U-boat force in World War Two from 1941 onwards and boats of this type were being built throughout the war. The first VIIC boat being commissioned was the U-69 in 1940. The VIIC was an effective fighting machine and was seen in almost all areas where the U-boat force operated although their range was not as great as the one of the larger IX types. The VIIC came into service as the "Happy Days" were almost over and it was this boat that faced the final defeat to the Allied anti-submarine campaign in late 1943 and 1944. Perhaps the most famous VIIC boat was the U-96 which is featured in the movie Das Boot, other noticeable boats were the U-flak boats. Many of these boats were fitted with the Schnorkel in 1944-1945. This design saw one more improvement in the type VIIC/41 boat. The larger mine-laying type VIID was a direct variant of the VIIC.

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Author : Henry Taunt
Genre : England

Summary :

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Author : Dmitry Mironov
Genre : Crafts & Hobbies

Summary : The Type XXI U-boot was one of the few types of weapon that, despite being unable to take part in combat, completely changed the character of naval actions at sea. It was the first true submarine in history. The other types of vessels designed so far were basically "diving ships" that might have been underwater for some time, but most of the time they had to be on the surface because their underwater range was severely limited. Under water they were slow and not maneuverable, and often had to emerge onto the surface to charge their electric batteries. The Type XXI was designed from the outset as a true submarine whose natural environment was to be the deep seas.

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Author : Hans O S Küffner-McCauley
Genre :

Summary : High speed boats necessarily use surface-piercing propellers, but there is very little literature available on surface piercing. My aim is to quantify what I have understood about speed on the water from theory and practice combined. I'm uniquely qualified to write about the combination of fast planing hulls, propellers, and hydrodynamics. I know how a race boat feels under all conditions from 60-85 mph from driving successfully in competition. I have reworked and improved many existing propellers for racing and also for better performance on sport boats. I do my own work on boat bottoms, propellers, and motors. I've set nine outboard speed records, have won four national championships, and I was twice US-1 in my class. On the other side of the coin I'm physics professor with adequate theoretical background in vortex theory and hydrodynamics more generally. The completely new results, not found elsewhere in the literature, are: power-diameter-RPM scaling for propellers and comparison with speed record data, inadequacy of all available measurements of torque coefficients in surface piercing, the difference between efficient surface piercing and supercavitation, complete set of equations (using the mean camber surface to define pitch and camber) for the design of a cleaver from hub to tip, definition of path pitch, use of path pitch to determine the parabolic camber, photos of 3D CAD drawings and 3D printed out models, idealized calculations of torque coefficients and efficiencies, speed-power- weigh scaling law and comparison with existing speed records, clear definition of lift onset, clear definition of planning, lift on monohulls and tunnels, center of pressure and stability of tunnels, estimation of lift coefficient for a v-bottom/tunnel sponson and comparison with data