FR2445794A2 - Inclinable keel board for sailing boat - inclines sideways to provide hydrodynamic lift due to longitudinal component of boat movement - Google Patents

Inclinable keel board for sailing boat - inclines sideways to provide hydrodynamic lift due to longitudinal component of boat movement

Info

Publication number
FR2445794A2
FR2445794A2 FR7900270A FR7900270A FR2445794A2 FR 2445794 A2 FR2445794 A2 FR 2445794A2 FR 7900270 A FR7900270 A FR 7900270A FR 7900270 A FR7900270 A FR 7900270A FR 2445794 A2 FR2445794 A2 FR 2445794A2
Authority
FR
France
Prior art keywords
boat
inclinable
longitudinal component
movement
hydrodynamic lift
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
FR7900270A
Other languages
French (fr)
Other versions
FR2445794B2 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7900270A priority Critical patent/FR2445794A2/en
Priority to DE19792916069 priority patent/DE2916069A1/en
Priority to GB7913912A priority patent/GB2019785B/en
Priority to ES479914A priority patent/ES479914A1/en
Priority to IT7953215U priority patent/IT7953215V0/en
Priority to IT7967879A priority patent/IT7967879A0/en
Publication of FR2445794A2 publication Critical patent/FR2445794A2/en
Priority to US06/220,231 priority patent/US4377124A/en
Application granted granted Critical
Publication of FR2445794B2 publication Critical patent/FR2445794B2/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 
    • B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
    • 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
    • B63B2039/065—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

Landscapes

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

Abstract

The keep board is arranged to incline sideways, under the effect of water flow about an axis lying in the central longitudinal plane of symmetry of the boat. The axis is inclined upwardly towards the bows of the boat. An upward lift component is generated by the board during its inclination, due to the longitudinal component of movement of the boat. Two inclinable keel boards, whose axes of inclination converge towards the bows may be used.
FR7900270A 1978-04-25 1979-01-05 Inclinable keel board for sailing boat - inclines sideways to provide hydrodynamic lift due to longitudinal component of boat movement Granted FR2445794A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7900270A FR2445794A2 (en) 1979-01-05 1979-01-05 Inclinable keel board for sailing boat - inclines sideways to provide hydrodynamic lift due to longitudinal component of boat movement
DE19792916069 DE2916069A1 (en) 1978-04-25 1979-04-20 SAILBOAT WITH SWIVEL
GB7913912A GB2019785B (en) 1978-04-25 1979-04-20 Sailboat with an inclinable keel board
ES479914A ES479914A1 (en) 1978-04-25 1979-04-25 Sailboat with an inclinable keel board
IT7953215U IT7953215V0 (en) 1978-04-25 1979-04-26 BOAT IONE SAILING WITH TILTING FINISH
IT7967879A IT7967879A0 (en) 1978-04-25 1979-04-26 SAILING VESSEL WITH TILTING DINGHY
US06/220,231 US4377124A (en) 1978-04-25 1980-12-16 Sailboat with an inclinable keel board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7900270A FR2445794A2 (en) 1979-01-05 1979-01-05 Inclinable keel board for sailing boat - inclines sideways to provide hydrodynamic lift due to longitudinal component of boat movement

Publications (2)

Publication Number Publication Date
FR2445794A2 true FR2445794A2 (en) 1980-08-01
FR2445794B2 FR2445794B2 (en) 1982-08-13

Family

ID=9220504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900270A Granted FR2445794A2 (en) 1978-04-25 1979-01-05 Inclinable keel board for sailing boat - inclines sideways to provide hydrodynamic lift due to longitudinal component of boat movement

Country Status (1)

Country Link
FR (1) FR2445794A2 (en)

Also Published As

Publication number Publication date
FR2445794B2 (en) 1982-08-13

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