FR2338179A1 - Turbulence and drag reducing boat hull - has raked keel and outwardly angled full length fin each side - Google Patents

Turbulence and drag reducing boat hull - has raked keel and outwardly angled full length fin each side

Info

Publication number
FR2338179A1
FR2338179A1 FR7601199A FR7601199A FR2338179A1 FR 2338179 A1 FR2338179 A1 FR 2338179A1 FR 7601199 A FR7601199 A FR 7601199A FR 7601199 A FR7601199 A FR 7601199A FR 2338179 A1 FR2338179 A1 FR 2338179A1
Authority
FR
France
Prior art keywords
raked
turbulence
hull
keel
fin
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
FR7601199A
Other languages
French (fr)
Other versions
FR2338179B1 (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.)
TRIOUX JEAN
Original Assignee
TRIOUX JEAN
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 TRIOUX JEAN filed Critical TRIOUX JEAN
Priority to FR7601199A priority Critical patent/FR2338179A1/en
Publication of FR2338179A1 publication Critical patent/FR2338179A1/en
Application granted granted Critical
Publication of FR2338179B1 publication Critical patent/FR2338179B1/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 
    • 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
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/042—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull the underpart of which being partly provided with channels or the like, e.g. catamaran shaped

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

A hull for a sailing boat is designed to reduce drag, turbulence, and suction. It has a deep keel, strongly raked to the rear, and preceded by a low ridge, and with a fin each side, spaced from it. These fins slope outwards at an oblique angle to the vertical plane. The remainder of the hull has a gently rounded curvature fore and aft. The front part of each fin has a similar gentle curvature, but extends rearwards almost parallel with the water line. An alternative design has a hull which in cross section is wine glass shaped, i.e. the sides are deeply concave. Similar fins are positioned inside the concavities.
FR7601199A 1976-01-19 1976-01-19 Turbulence and drag reducing boat hull - has raked keel and outwardly angled full length fin each side Granted FR2338179A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7601199A FR2338179A1 (en) 1976-01-19 1976-01-19 Turbulence and drag reducing boat hull - has raked keel and outwardly angled full length fin each side

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7601199A FR2338179A1 (en) 1976-01-19 1976-01-19 Turbulence and drag reducing boat hull - has raked keel and outwardly angled full length fin each side

Publications (2)

Publication Number Publication Date
FR2338179A1 true FR2338179A1 (en) 1977-08-12
FR2338179B1 FR2338179B1 (en) 1981-12-18

Family

ID=9168061

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601199A Granted FR2338179A1 (en) 1976-01-19 1976-01-19 Turbulence and drag reducing boat hull - has raked keel and outwardly angled full length fin each side

Country Status (1)

Country Link
FR (1) FR2338179A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421102A1 (en) * 1978-03-31 1979-10-26 Bois Plastiques Indls Sailing vessel hull - has longitudinal groove on either side of keel to improve sailing to windward by allowing vessel to point higher
US4922844A (en) * 1987-07-01 1990-05-08 Akzo S.R.L. Sailing-boat hull

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421102A1 (en) * 1978-03-31 1979-10-26 Bois Plastiques Indls Sailing vessel hull - has longitudinal groove on either side of keel to improve sailing to windward by allowing vessel to point higher
US4922844A (en) * 1987-07-01 1990-05-08 Akzo S.R.L. Sailing-boat hull

Also Published As

Publication number Publication date
FR2338179B1 (en) 1981-12-18

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
ST Notification of lapse