[go: up one dir, main page]

FR2344441A1 - Steerable sailing boat keel fin - has curvature of flexible arched flanks variable to make fin unsymmetrical - Google Patents

Steerable sailing boat keel fin - has curvature of flexible arched flanks variable to make fin unsymmetrical

Info

Publication number
FR2344441A1
FR2344441A1 FR7708116A FR7708116A FR2344441A1 FR 2344441 A1 FR2344441 A1 FR 2344441A1 FR 7708116 A FR7708116 A FR 7708116A FR 7708116 A FR7708116 A FR 7708116A FR 2344441 A1 FR2344441 A1 FR 2344441A1
Authority
FR
France
Prior art keywords
fin
flanks
curvature
unsymmetrical
steerable
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
Application number
FR7708116A
Other languages
French (fr)
Other versions
FR2344441B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HADDOCK CECIL
Original Assignee
HADDOCK CECIL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HADDOCK CECIL filed Critical HADDOCK CECIL
Publication of FR2344441A1 publication Critical patent/FR2344441A1/en
Application granted granted Critical
Publication of FR2344441B1 publication Critical patent/FR2344441B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/38—Keels
    • 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
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/38—Rudders
    • B63H25/382—Rudders movable otherwise than for steering purposes; Changing geometry
    • 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
    • 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
    • B63B2039/063—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 comprising flexible portions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Prostheses (AREA)

Abstract

The boat fin is particularly for sailing boats, having a support attached to a main structure, securing the flexible arched flanks. The flanks are spaced apart at the centre and joined along the edges to form a symmetrical profiled fin. The curvature of one or both flanks can be varied to render the fin unsymmetrical. The flanks can be mounted on opposite sides of components working with the support and running in its lengthwise direction. Each flank has a joint extensible in the lengthwise direction to absorb the discrepancies appearing when curvature is altered, this alteration being controlled by a mechanism acting on the components joining the flanks together.
FR7708116A 1976-03-19 1977-03-18 Steerable sailing boat keel fin - has curvature of flexible arched flanks variable to make fin unsymmetrical Granted FR2344441A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU527076 1976-03-19
AU619376 1976-06-07

Publications (2)

Publication Number Publication Date
FR2344441A1 true FR2344441A1 (en) 1977-10-14
FR2344441B1 FR2344441B1 (en) 1984-12-07

Family

ID=25611188

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7708116A Granted FR2344441A1 (en) 1976-03-19 1977-03-18 Steerable sailing boat keel fin - has curvature of flexible arched flanks variable to make fin unsymmetrical

Country Status (2)

Country Link
CA (1) CA1062091A (en)
FR (1) FR2344441A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126371A1 (en) * 1981-07-03 1983-02-17 Mistral Windsurfing AG, 8303 Nürensdorf, Zürich DEVICE FOR STABILIZING THE DRIVING DIRECTION OF WATER VEHICLES, IN PARTICULAR SWORD OR FIN FOR WINDSURFBOARDS
US4377124A (en) * 1978-04-25 1983-03-22 Franck Guigan Sailboat with an inclinable keel board
EP0242408A1 (en) * 1986-04-16 1987-10-28 Wilhelm Laib Sail boat
NL2004891C2 (en) * 2010-06-15 2011-12-19 Binkhorstdesign Beheer B V SAILBOAT.
NL2005562C2 (en) * 2010-10-22 2012-04-24 Binkhorstdesign Beheer B V BOAT.
WO2011159156A3 (en) * 2010-06-15 2012-04-26 Binkhorstdesign Beheer Bv Watercraft having a fin with controllable lift

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE376152C (en) * 1920-06-22 1923-05-24 Emil Palmblad Sword for sailing ships
US1924871A (en) * 1931-06-26 1933-08-29 Ludington Charles Townsend Boat keel
FR1409241A (en) * 1964-02-14 1965-08-27 Improvements to sailboat daggerboards
US3753415A (en) * 1971-11-30 1973-08-21 S Burtis Hydrofoil-shaped stabilizing or attitude-affecting means for boats

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE376152C (en) * 1920-06-22 1923-05-24 Emil Palmblad Sword for sailing ships
US1924871A (en) * 1931-06-26 1933-08-29 Ludington Charles Townsend Boat keel
FR1409241A (en) * 1964-02-14 1965-08-27 Improvements to sailboat daggerboards
US3753415A (en) * 1971-11-30 1973-08-21 S Burtis Hydrofoil-shaped stabilizing or attitude-affecting means for boats

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377124A (en) * 1978-04-25 1983-03-22 Franck Guigan Sailboat with an inclinable keel board
DE3126371A1 (en) * 1981-07-03 1983-02-17 Mistral Windsurfing AG, 8303 Nürensdorf, Zürich DEVICE FOR STABILIZING THE DRIVING DIRECTION OF WATER VEHICLES, IN PARTICULAR SWORD OR FIN FOR WINDSURFBOARDS
EP0242408A1 (en) * 1986-04-16 1987-10-28 Wilhelm Laib Sail boat
NL2004891C2 (en) * 2010-06-15 2011-12-19 Binkhorstdesign Beheer B V SAILBOAT.
WO2011159156A3 (en) * 2010-06-15 2012-04-26 Binkhorstdesign Beheer Bv Watercraft having a fin with controllable lift
NL2005562C2 (en) * 2010-10-22 2012-04-24 Binkhorstdesign Beheer B V BOAT.

Also Published As

Publication number Publication date
CA1062091A (en) 1979-09-11
FR2344441B1 (en) 1984-12-07

Similar Documents

Publication Publication Date Title
FR2375500A1 (en) SHOCK ABSORPTION DEVICE
GB1383237A (en) Deck joint for boat hulls
SE8505312L (en) Semi-submersible platform
FR2346210A1 (en) SAILING BOAT DEVELOPMENTS
FR2344441A1 (en) Steerable sailing boat keel fin - has curvature of flexible arched flanks variable to make fin unsymmetrical
GB1498034A (en) Dinghies
BR7608835A (en) INSTALLATION TO PERFORM WORK ON A SHIP HULL
ES8400065A1 (en) Propulsion system for sailing craft.
BR7701937A (en) PROCESS OF ATTACHING A PILON AND A CONVENT TO THE HULL OF A SAILING BOAT;
ES278772Y (en) SAIL TO PROPELL SAILED VEHICLES ON SURFACES.
ES465123A1 (en) Fin rudder for ships
GB1289361A (en)
GB1144753A (en) Collapsible catamaran
ES436548A1 (en) Craft with at least two hulls
ES228958U (en) Anchor
NL7510626A (en) Folding boat has curved-outer edge bottom panels hinged to sides - and oppositely curved inner edges hinged at centre
JPS5755284A (en) Hydrofoil of variable sectional area with flexible membrane
US2243247A (en) Folding and nonfolding marine craft
GB1069151A (en) Improvements in or relating to collapsible boats
GB1034624A (en) Boat with inflatable hull-supporting tubes
GB2174661A (en) Sail assembly
RU2061618C1 (en) Collapsible boat
NL7713062A (en) Wave shaped plate in girder structure - has its side edges fitted into support fillet apertures fixed by wave crests and bases
KR960010452A (en) Rudder
KR840007762A (en) Maritime structures

Legal Events

Date Code Title Description
ST Notification of lapse