WO2015158400A1 - Canting water ballast for monohull sailing vessels - Google Patents
Canting water ballast for monohull sailing vessels Download PDFInfo
- Publication number
- WO2015158400A1 WO2015158400A1 PCT/EP2014/058004 EP2014058004W WO2015158400A1 WO 2015158400 A1 WO2015158400 A1 WO 2015158400A1 EP 2014058004 W EP2014058004 W EP 2014058004W WO 2015158400 A1 WO2015158400 A1 WO 2015158400A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vessel
- monohull
- sailing
- arms
- side floats
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
- B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
- B63B39/062—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water the foils being mounted on outriggers or the like, e.g. antidrift hydrofoils for sail boats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
- B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B2035/009—Wind propelled vessels comprising arrangements, installations or devices specially adapted therefor, other than wind propulsion arrangements, installations, or devices, such as sails, running rigging, or the like, and other than sailboards or the like or related equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
- B63B2039/065—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water the foils being pivotal about an axis substantially parallel to the longitudinal axis of the vessel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
- B63B2043/042—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using outboard booms supporting ballast, other than solid ballast or persons, e.g. carrying water-filled bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
- B63B43/14—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy using outboard floating members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
- B63C7/003—Righting capsized vessels, e.g. sailing vessels
Definitions
- the present invention is related to mobile ballast for mono-hull sailing vessels, to optimize performance during sailing, and to reduce wetted surface and draft
- the of this invention is to improve the stability and performance of mono-hull sailing vessels. Furthermore, it can be equipped by an additional system to obtain an unsinkable vessel, and less draft. DESCRIPTION OF INVENTION
- the hull has two side floats, port and starboard, and those have two arms, hinged in proximity of the sheer line of the hull (Z), permitting a free rotation(see fig.3) .
- the upwind side float works as water ballast (Y), while the leeward side float (X), that is empty and rotated in way to be out of water, works as extra floating volume only in case of gust (W), and stormy weather (see fig.4). So the leeward side float will touch the water and sink to give the extra righting moment if necessary.
- the arms need to have a shape similar to the common trimaran and catamaran, this particular shape has the scope of avoid additional resistance duet to extra wetted surface (see fig%)
- the centre of volume of the two side floats needs to be positioned close to the longitudinal position of the hull of the vessel, to avoid modifying the longitudinal trim of the vessel, in static and dynamic condition.
- the length of the arms must be between the 50% and 60% of the beam of the vessel.
- the volumes of the side floats must be, each one, between 5% and 20% of the volume of the hull shape. This means that the volumes of the side float leeward, that is empty, gives at least the same maximum righting moment as for traditional vessels, having the same sail area, between 40 and 50 degree.
- the hull and deck need to have, in proximity of the arms hinges, an end of stroke to block the rotation of the arms in case of high heeling angle.
- the rotation could be commanded by a hydraulic system (cylinders), electric motors, or by halyards dedicated.
- This invention matches perfectly with the ultimate mono-hull racing vessels, more specifically those racing for long regatta; for example, the Class 40 and Volvo Ocean Race.
- the vessel formed in accordance with the present invention has a superior righting moment an less heel angle, which optimizes the performance and comfort.
- the first principle concept is the way of how to hinge the arms, and how to apply the rotation to the side floats.
- the preferred system is to hinge the arms of the side floats in an external position of the sheer line (beam max) to obtain about 100/120 degree of rotation.
- the hinge (Z) is preferably stainless steel, and bolted to the hull, and must be accessible for check/maintenance and in case substitute (see fig.5)
- the rotation can be actuated in many ways:
- halyards dedicated that exit in proximity of the first couple of spreaders that are not swept back.
- the halyards can be two for each side floats, obtaining the rotation with the use of only one winch for each side floats. In this case the mast will have an extra load, and this load must be calculated to obtain the right scantling of the size of mast, (see fig.10)
- the system to embark water in the upwind side float is the following:
- the side floats are equipped with a pump, which embarks the water directly in the upwind side float.
- This system has the great advantage of avoiding pumps on board, and the excluding of pipes connected to the arms of the side floats.
- the side floats need a valve to discharge quickly the embarked water (see fig.13) VARIATIONS
- a variation of this invention is to rotate the side floating in counter clock wise, when the vessel is in mooring condition. In this case the draft of the vessel is totally duet to the length of the rudder/rudders.
- LESS WETTED SURFACE the present invention is based on the concept that the side floats are completely independent in rotation and positioned one to each other, therefore the side float leeward, that is empty, is rotated in order to be out of the sea water. This aspect is fundamental to ensure lowest wetted surface, permitting top performance.
- LESS DRAFT the use of retractable arms, and canards, greatly reduce the draft; this creates great advantages in mooring conditions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2014/058004 WO2015158400A1 (en) | 2014-04-18 | 2014-04-18 | Canting water ballast for monohull sailing vessels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2014/058004 WO2015158400A1 (en) | 2014-04-18 | 2014-04-18 | Canting water ballast for monohull sailing vessels |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015158400A1 true WO2015158400A1 (en) | 2015-10-22 |
Family
ID=50639458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/058004 WO2015158400A1 (en) | 2014-04-18 | 2014-04-18 | Canting water ballast for monohull sailing vessels |
Country Status (1)
Country | Link |
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WO (1) | WO2015158400A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016012672A1 (en) * | 2016-10-24 | 2018-04-26 | Herbert Trenner | Reduction of fuel consumption / energy consumption of watercraft by attaching / attaching / mounting / additional construction elements |
CN109606584A (en) * | 2018-12-13 | 2019-04-12 | 岳广琴 | A kind of anti-rollover ship |
IT201800006540A1 (en) * | 2018-06-21 | 2019-12-21 | Stabilization device for a boat | |
CN111942528A (en) * | 2020-08-13 | 2020-11-17 | 蒋知秋 | Marine wind power of haulage rope fixed is with preventing unrestrained base |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4441445A (en) * | 1980-11-24 | 1984-04-10 | Roger De Weck | Self-righting multihull boat |
US5636585A (en) * | 1995-10-20 | 1997-06-10 | Schulz; Walter A. | Sailboat with hydrofoil members |
-
2014
- 2014-04-18 WO PCT/EP2014/058004 patent/WO2015158400A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4441445A (en) * | 1980-11-24 | 1984-04-10 | Roger De Weck | Self-righting multihull boat |
US5636585A (en) * | 1995-10-20 | 1997-06-10 | Schulz; Walter A. | Sailboat with hydrofoil members |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016012672A1 (en) * | 2016-10-24 | 2018-04-26 | Herbert Trenner | Reduction of fuel consumption / energy consumption of watercraft by attaching / attaching / mounting / additional construction elements |
IT201800006540A1 (en) * | 2018-06-21 | 2019-12-21 | Stabilization device for a boat | |
CN109606584A (en) * | 2018-12-13 | 2019-04-12 | 岳广琴 | A kind of anti-rollover ship |
CN111942528A (en) * | 2020-08-13 | 2020-11-17 | 蒋知秋 | Marine wind power of haulage rope fixed is with preventing unrestrained base |
CN111942528B (en) * | 2020-08-13 | 2021-07-13 | 苏州普轮电子科技有限公司 | Marine wind power of haulage rope fixed is with preventing unrestrained base |
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