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244:, 17th century cargo sailing vessels. Fluyt ships were designed to facilitate transoceanic delivery of cargo with maximum of cargospace and crew efficiency. Unlike rivals, they were not built for conversion in wartime to a warship, and so were cheaper to build and carried more than twice the cargo of a conventional vessel and could be handled by a much smaller crew. These factors resulted in a lower cost of transportation by Dutch merchants, giving them a major competitive advantage.
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390:. The house and stable also incorporate an extremely rare tumblehome design throughout. The exterior walls slant inward from the base to the top. Since the interior walls are straight, the transition takes place in the exterior windows and doors which are wider at the bottom than they are at the top. The house and stable are unique examples and similar to wooden
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The inward slope of a narrowboat's superstructure (from gunwales to roof) is referred to as tumblehome. The amount of tumblehome is one of the key design choices when specifying a narrowboat, because the widest part of a narrowboat is rarely more than 7 feet across, so even a modest change to the
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Tumblehome was common on wooden warships for centuries. It allowed for maximizing a vessel's beam and creating a low center of gravity (by decreasing mass above the waterline), both tending to maximize stability. In the era of oared combat ships it was quite common, placing the oar ports as far
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a vessel by force, as the ships would come to contact at their widest points, with the decks some distance apart. With the advent of gunpowder, extreme tumblehome also increased the effective thickness of the hull versus flat horizontal trajectory gunfire (as any given width material grows
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Steel warships especially of the early 1880s frequently demonstrate tumblehome, though it has been an influential factor in their design ever since their beginnings. One of the first
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proved that the tumblehome battleship design was excellent for long-distance navigation, but could be dangerously unstable when watertight integrity was breached. Four tumblehome
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effectively "thicker" as it is tilted towards the horizontal) and increased the likelihood of a shell striking the hull being deflected—much the same reasons that later
237:. The fact that three of the four were lost in this battle resulted in the discontinuing of the tumblehome design in future warships for most of the 20th century.
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form in combination with choice of materials results in decreased radar reflection, which together with other signature (sound, heat etc.) damping measures makes
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The term is also applied to automotive design, where a vehicle's sides taper inward as they go up. This includes a roof tapering in, and curved window glass.
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is less pronounced or eliminated to reduce aerodynamic drag and to help keep the lower portions of the vehicle cleaner under wet conditions.
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363:. Less commonly, the inward curve of the body near the bottom may also be called a tumblehome. In 21st century automobile designs this
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in 1900 and have some rare design features including
Japanese-influenced upward roof flares at all of the roof peaks and on each
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of a motor vehicle is also called the tumblehome. An example of a car with a pronounced tumblehome is the
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slope of the cabin sides makes a significant difference to the "full-height" width of the cabin interior.
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Traditional
Birchbark Canoes Built in the Malecite, Penobscot and Passamaquoddy style
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of 1862, could be considered an early example of this integral trend. However, the
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DDG-1000 Zumwalt / DD(X) Multi-Mission
Surface Combatant Future Surface Combatant
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is a term describing a hull which grows narrower above the waterline than its
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in particular promoted the design, advocating it to reduce the weight of the
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abeam as possible, allowing maximum possible manpower to be brought to bear.
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Tumblehome has been used in proposals for several modern ship projects. The
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designs in order to allow any small projections at deck level to clear
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Merchant Ship
Construction Especially Written for the Merchant Navy
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Pronounced tumblehome only on the superstructure of this narrowboat
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Tumblehome differs between passenger and commercial motor vehicles
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Russian
Battleship vs Japanese Battleship, Yellow Sea 1904–05.
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Another example of tumblehome hull design were the Dutch
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combine tumblehome with multi-hull designs, such as the
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construction with flared supports for added strength.
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battleships, which had been built in
Russian yards to
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Due to stability concerns, most warships with narrow
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187:. A French yard was contracted to construct the
85:Model of a French 74-gun ship from 1755 showing
498:. GlobalSecurity.org. Modern use of tumblehome.
382:were designed during an experimental period by
130:Inward-sloping sides made it more difficult to
107:A small amount of tumblehome is normal in many
301:demonstrate it above and below the waterline.
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89:as its hull narrows rising to the upper deck
444:"Frank Lloyd Wright Building Conservancy"
233:s basic design, fought on 27 May 1905 at
69:Learn how and when to remove this message
370:It is known in bus body design as well.
256:Comparison of conventional hull and the
32:This article includes a list of general
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16:Design element of ships and automobiles
274:undergoing sea trials in December 2015
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207:in time for it to fight as Admiral
38:it lacks sufficient corresponding
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100:. The opposite of tumblehome is
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380:S. A. Foster House and Stable
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475:Mather, Frederic G. (1885).
197:along the lines of France's
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478:The Evolution of Canoeing
351:The inward slope of the "
460:Forczyk, Robert (2009).
213:Battle of the Yellow Sea
215:on 10 August 1904. The
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248:Modern warship design
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361:Lamborghini Countach
339:In automobile design
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183:by creating greater
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306:wave-piercing hulls
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217:Russo-Japanese War
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109:naval architecture
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455:Works cited
392:water tower
228:Tsesarevich
194:Tsesarevich
191:battleship
173:French Navy
51:introducing
506:Categories
398:References
353:greenhouse
322:Narrowboat
94:Tumblehome
87:tumblehome
34:references
464:Osprey.
403:Footnotes
365:turnunder
185:freeboard
166:CSS
357:beltline
235:Tsushima
222:Borodino
168:Virginia
297:Zumwalt
292:US Navy
272:Zumwalt
122:Origins
113:wharves
47:improve
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388:dormer
224:-class
164:, the
141:sloped
36:, but
259:Visby
242:fluyt
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102:flare
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378:The
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98:beam
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