GB2232935A - Multihull board sail - Google Patents
Multihull board sail Download PDFInfo
- Publication number
- GB2232935A GB2232935A GB8913608A GB8913608A GB2232935A GB 2232935 A GB2232935 A GB 2232935A GB 8913608 A GB8913608 A GB 8913608A GB 8913608 A GB8913608 A GB 8913608A GB 2232935 A GB2232935 A GB 2232935A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boards
- boardsailing
- multihull
- fittings
- keel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/50—Boards characterised by their constructional features
- B63B32/56—Boards convertible into vessels or other types of water sports boards, e.g. into sailboats, canoes or water-cycles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A multihull boardsail has two or more boardsailing boards releasably joined in parallel at an appropriate distance apart. A raised platform 1 is releasably attached to the supporting boards by means of front adjustable fittings 7 which locate in the supporting boards' mastfoot receptors together with rear adjustable fittings 8 which accept and locate each supporting boards' keel whilst permitting the keels virtual normal operation on the boardsailing board. This stable platform 1 accommodates footing 5 to accept traditional boardsailing mast fittings together with mounting 6 for optional attachment of an outboard motor. Slots 9 may be provided to allow for the introduction of each keel to the rear adjustable fitting 8 and to permit vertical adjustment of each keel in use. <IMAGE>
Description
MULTIHULL BOARDSAIL
This invention relates to a multihull boardsail.
Additional provision is made for optional motor propulsion.
Boardsails are well known recreational and sporting craft.
They are single hulled and require considerable physical skills on the part of the sailor. Developing these skills is complicated by the requirement to balance on the craft whilst attempting sailing operations. As sailing skills are learned and applied the craft effectively becomes more stable.
Enjoyment of boardsailing is relatively limited to people who can withstand the learning process and accept falls as an integral part of the activity.
Alternative use of the boards is limited to paddling them with, or without, the aid of seats/back supports or towing them with other craft.
According to the present invention there is provided a stable platform supported by two (or more) boardsailing boards and accommodating a single footing for accepting traditional boardsailing mast fittings, also a rear mounting for optional attachment of an outboard motor. The invention is so designed as to permit rapid mounting/demounting to boardsailing boards by means of front adjustable fittings which locate in the supporting boards' mastfoot receptors together with adjustable fittings which accept and locate each supporting boards' keel whilst permitting the keels virtual normal operation on the boardsailing boards.
The invention locates the boards parallel and at an appropriate distance apart and provides for the raising of the platform to achieve clearance for the passage of water between the boards.
The invention permits two (or more if appropriately extended) boardsailing boards to be operated in a multihull configuration from a stable platform whilst retaining virtual normal sailing characteristics. It also provides for the optional attachment of outboard motor provision to provide alternative propulsion.
The invention affords the opportunity to operate the multihull craft with more than one person on board, thus facilitating its use for instruction of boardsailing and/or wider recreational use by people who would not normally participate.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which;- Figure 1 shows in perspective, the platform with fittings for providing attachment to boardsailing boards, footing to provide boardsailing mast attachment (and thereby boom and sail provision) and mounting for outboard motor attachment.
Referring to the drawing the platform 1 is supported and raised above the boardsail boards by upstands 2 which are stabilised by cross members 3 which are formed to allow for clearance 4 between the platform and the water.
A footing 5 is provided to permit the location of traditional boardsailing mast fittings.
A mounting 6 may be provided for the optional fitting of outboard motor propulsion.
Front adjustable fittings 7 provides location in the boardsail boards'mastfoot receptors.
Rear adjustable fittings 8 accept and retain each supporting boards' keel. The fittings are positioned so as to allow that portion of the keel not retained by the fittings to pass through the keel slot of each supporting board. The fittings may allow for vertical adjustment of each keel.
Slots 9 may be required to allow introduction of each keel to the rear adjustable fitting 8 and to permit vertical adjustment of each keel in use.
Claims (4)
1 A multihull boardsail comprising a platform supported above two or more boardsail boards, means for releasably securing the platform to the boardsail boards.
2 A multihull boardsail as claimed in Claim 1 wherein fittings are provided for keel location.
3 A multihull boardsail as claimed in Claim 1 or Claim 2 wherein footing is provided for location of met fitting or fittings.
4 A multihull boardsail substantially as described hel--in with reference to Figure 1 of the accompanying drawing.
4 A multihull boardsail as claimed in Claim 1 or Claim 2 Of Claim 3 wherein mounting is provided for the attachment of outboard motor propulsion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8913608A GB2232935B (en) | 1989-06-14 | 1989-06-14 | Multihull board sail |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8913608A GB2232935B (en) | 1989-06-14 | 1989-06-14 | Multihull board sail |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8913608D0 GB8913608D0 (en) | 1989-08-02 |
GB2232935A true GB2232935A (en) | 1991-01-02 |
GB2232935B GB2232935B (en) | 1993-02-24 |
Family
ID=10658384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8913608A Expired - Fee Related GB2232935B (en) | 1989-06-14 | 1989-06-14 | Multihull board sail |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2232935B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2277301A (en) * | 1993-04-23 | 1994-10-26 | Richard John Winston Harvey | Multi-hull board sail with hydrofoils |
US6302042B1 (en) | 1999-01-22 | 2001-10-16 | Harris Kayot, Inc. | Deck support bracket for pontoon craft |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3883909A (en) * | 1973-10-05 | 1975-05-20 | Vervcraft Inc | Sectional small water craft |
EP0061878A2 (en) * | 1981-03-27 | 1982-10-06 | MECCANOFRUTTA ITALIANA S.n.c. | Transformable pleasure craft |
GB2124157A (en) * | 1982-06-29 | 1984-02-15 | Jens Peter Jensen | A rack structure for connection with at least one elongated float member such as a surfboard |
WO1984004077A1 (en) * | 1983-04-15 | 1984-10-25 | Reel Sa | Boat of the sale board type usable in tandem |
WO1986006338A1 (en) * | 1985-04-25 | 1986-11-06 | Jacques Dominique Stelniceanu | Catamaran with joined floats |
US4662297A (en) * | 1985-02-13 | 1987-05-05 | Crowley Kevin J | Knock-down boat |
EP0277072A1 (en) * | 1987-01-30 | 1988-08-03 | Jacques-Philippe Laboureau | Mechanically propulsed catamaran type-board |
GB2200873A (en) * | 1987-02-17 | 1988-08-17 | William Alan Guest | Floating structure |
-
1989
- 1989-06-14 GB GB8913608A patent/GB2232935B/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3883909A (en) * | 1973-10-05 | 1975-05-20 | Vervcraft Inc | Sectional small water craft |
EP0061878A2 (en) * | 1981-03-27 | 1982-10-06 | MECCANOFRUTTA ITALIANA S.n.c. | Transformable pleasure craft |
GB2124157A (en) * | 1982-06-29 | 1984-02-15 | Jens Peter Jensen | A rack structure for connection with at least one elongated float member such as a surfboard |
WO1984004077A1 (en) * | 1983-04-15 | 1984-10-25 | Reel Sa | Boat of the sale board type usable in tandem |
US4662297A (en) * | 1985-02-13 | 1987-05-05 | Crowley Kevin J | Knock-down boat |
WO1986006338A1 (en) * | 1985-04-25 | 1986-11-06 | Jacques Dominique Stelniceanu | Catamaran with joined floats |
EP0277072A1 (en) * | 1987-01-30 | 1988-08-03 | Jacques-Philippe Laboureau | Mechanically propulsed catamaran type-board |
GB2200873A (en) * | 1987-02-17 | 1988-08-17 | William Alan Guest | Floating structure |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2277301A (en) * | 1993-04-23 | 1994-10-26 | Richard John Winston Harvey | Multi-hull board sail with hydrofoils |
GB2277301B (en) * | 1993-04-23 | 1997-06-18 | Richard John Winston Harvey | Boardsails |
US6302042B1 (en) | 1999-01-22 | 2001-10-16 | Harris Kayot, Inc. | Deck support bracket for pontoon craft |
Also Published As
Publication number | Publication date |
---|---|
GB2232935B (en) | 1993-02-24 |
GB8913608D0 (en) | 1989-08-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5377607A (en) | Conversion arrangement for sail board with seat | |
US4729334A (en) | Commercial sport fishing boat | |
US4548155A (en) | Boat including swim platform | |
JPH08511221A (en) | Multipurpose watercraft | |
US5131348A (en) | Composite hull boat with rigid bottom and inflatable tubular buoyancy element | |
US4102287A (en) | Catamaran with swingable mast and hulls | |
US3922994A (en) | Twin-hulled outrigger sailboat | |
CA2092644A1 (en) | Propeller Driven Surfboard | |
EP0061878A2 (en) | Transformable pleasure craft | |
WO1984000134A1 (en) | A rack structure for connection with at least one float member, in particular a surfboard | |
GB2232935A (en) | Multihull board sail | |
US3696451A (en) | Tube float or boat | |
US6651573B2 (en) | Personal watercraft | |
US6095073A (en) | Multihull boat | |
US5904111A (en) | Trimarans with removable beams configurations and steering wheel assemblies | |
US4064584A (en) | Upper boat deck | |
US4664049A (en) | Lightweight, knockdown, sport trimaran | |
US5542370A (en) | Portable fishing deck and boat with fishing deck | |
US4998494A (en) | Device for enhancing the buoyancy of sailboards and the like | |
KR100946390B1 (en) | Excursion ship with great width | |
US10214270B1 (en) | Personal watercraft | |
US5320060A (en) | Adjustable pedestal and saddle for boats | |
GB2034253A (en) | New and Improved Dinghy | |
JPH0585468A (en) | Propelled boat | |
SE8403389D0 (en) | DEVICE FOR A HALF SUBMITTED PLATFORM WITH TWO MAIN PARALLEL PONTONES |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20080614 |