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FR2421102A1 - Sailing vessel hull - has longitudinal groove on either side of keel to improve sailing to windward by allowing vessel to point higher - Google Patents

Sailing vessel hull - has longitudinal groove on either side of keel to improve sailing to windward by allowing vessel to point higher

Info

Publication number
FR2421102A1
FR2421102A1 FR7810332A FR7810332A FR2421102A1 FR 2421102 A1 FR2421102 A1 FR 2421102A1 FR 7810332 A FR7810332 A FR 7810332A FR 7810332 A FR7810332 A FR 7810332A FR 2421102 A1 FR2421102 A1 FR 2421102A1
Authority
FR
France
Prior art keywords
sailing
keel
vessel
windward
point higher
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
FR7810332A
Other languages
French (fr)
Other versions
FR2421102B1 (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.)
BOIS PLASTIQUES INDLS
Original Assignee
BOIS PLASTIQUES INDLS
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 BOIS PLASTIQUES INDLS filed Critical BOIS PLASTIQUES INDLS
Priority to FR7810332A priority Critical patent/FR2421102A1/en
Publication of FR2421102A1 publication Critical patent/FR2421102A1/en
Application granted granted Critical
Publication of FR2421102B1 publication Critical patent/FR2421102B1/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 
    • 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 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • 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
    • B63B2039/067—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 effecting motion dampening by means of fixed or movable resistance bodies, e.g. by bilge keels

Landscapes

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

Abstract

The sailing boat hull has a centre plate (8) and a flat bottom (3) on either side of the keel. The hull is formed with two longitudinal grooves (4, 7) which run from a point behind the stem to the trnsom. The grooves are nearly parallel to the keel being wider apart at the stern. The leeward groove when beating to windward will act as a centreline keel and allow the vessel to point higher.
FR7810332A 1978-03-31 1978-03-31 Sailing vessel hull - has longitudinal groove on either side of keel to improve sailing to windward by allowing vessel to point higher Granted FR2421102A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7810332A FR2421102A1 (en) 1978-03-31 1978-03-31 Sailing vessel hull - has longitudinal groove on either side of keel to improve sailing to windward by allowing vessel to point higher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810332A FR2421102A1 (en) 1978-03-31 1978-03-31 Sailing vessel hull - has longitudinal groove on either side of keel to improve sailing to windward by allowing vessel to point higher

Publications (2)

Publication Number Publication Date
FR2421102A1 true FR2421102A1 (en) 1979-10-26
FR2421102B1 FR2421102B1 (en) 1980-09-19

Family

ID=9206824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810332A Granted FR2421102A1 (en) 1978-03-31 1978-03-31 Sailing vessel hull - has longitudinal groove on either side of keel to improve sailing to windward by allowing vessel to point higher

Country Status (1)

Country Link
FR (1) FR2421102A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2574042A1 (en) * 1984-11-30 1986-06-06 Provin Dominique Variable underwater hulls for racing boats and cruisers.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105857540B (en) * 2016-04-27 2018-06-26 河南丹江大观苑旅游有限公司 A kind of ship anti-bump device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1705413A (en) * 1927-10-08 1929-03-12 Edward G Mallison Boat
US3239856A (en) * 1964-10-27 1966-03-15 Stocking Stannard Boat construction
FR1481169A (en) * 1966-04-04 1967-05-19 Tunnel hull dinghy boat
FR2338179A1 (en) * 1976-01-19 1977-08-12 Trioux Jean Turbulence and drag reducing boat hull - has raked keel and outwardly angled full length fin each side

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1705413A (en) * 1927-10-08 1929-03-12 Edward G Mallison Boat
US3239856A (en) * 1964-10-27 1966-03-15 Stocking Stannard Boat construction
FR1481169A (en) * 1966-04-04 1967-05-19 Tunnel hull dinghy boat
FR2338179A1 (en) * 1976-01-19 1977-08-12 Trioux Jean Turbulence and drag reducing boat hull - has raked keel and outwardly angled full length fin each side

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2574042A1 (en) * 1984-11-30 1986-06-06 Provin Dominique Variable underwater hulls for racing boats and cruisers.

Also Published As

Publication number Publication date
FR2421102B1 (en) 1980-09-19

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Legal Events

Date Code Title Description
ST Notification of lapse