FR2436073A1 - Rudder for racing boats - has flexible rear section to allow rapid turning with low drag - Google Patents

Rudder for racing boats - has flexible rear section to allow rapid turning with low drag

Info

Publication number
FR2436073A1
FR2436073A1 FR7827016A FR7827016A FR2436073A1 FR 2436073 A1 FR2436073 A1 FR 2436073A1 FR 7827016 A FR7827016 A FR 7827016A FR 7827016 A FR7827016 A FR 7827016A FR 2436073 A1 FR2436073 A1 FR 2436073A1
Authority
FR
France
Prior art keywords
rudder
rear section
allow rapid
low drag
flexible rear
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
FR7827016A
Other languages
French (fr)
Other versions
FR2436073B1 (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 FR7827016A priority Critical patent/FR2436073A1/en
Publication of FR2436073A1 publication Critical patent/FR2436073A1/en
Application granted granted Critical
Publication of FR2436073B1 publication Critical patent/FR2436073B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

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

Abstract

The rudder consists of a fixed section to which a flexible aerodynamically shaped rear section is joined. A steering arm links a reinforcing plate to the tiller. The forward movement of a boat relative to the water exerts a dynamic pressure on to the sides of the rudder when turning, and also forms turbulence around the stern. The shape and the flexing of the rudder reduce the effects of pressure, and therefore reduce loss of forward motion when going about, an important factor in competition racing.
FR7827016A 1978-09-15 1978-09-15 Rudder for racing boats - has flexible rear section to allow rapid turning with low drag Granted FR2436073A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7827016A FR2436073A1 (en) 1978-09-15 1978-09-15 Rudder for racing boats - has flexible rear section to allow rapid turning with low drag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7827016A FR2436073A1 (en) 1978-09-15 1978-09-15 Rudder for racing boats - has flexible rear section to allow rapid turning with low drag

Publications (2)

Publication Number Publication Date
FR2436073A1 true FR2436073A1 (en) 1980-04-11
FR2436073B1 FR2436073B1 (en) 1981-04-30

Family

ID=9212852

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7827016A Granted FR2436073A1 (en) 1978-09-15 1978-09-15 Rudder for racing boats - has flexible rear section to allow rapid turning with low drag

Country Status (1)

Country Link
FR (1) FR2436073A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548149A (en) * 1983-11-04 1985-10-22 Del Raso Americo Rudder for aquatic craft
US6415729B1 (en) * 2000-12-14 2002-07-09 The United States Of America As Represented By The Secretary Of The Navy Side plate rudder system
FR2829742A1 (en) * 2001-09-17 2003-03-21 Pierre Henri Lefebvre Aquatic pedal boat machine having frame with seat/handlebar and connected pedaller/governor/helix and attached two floater floating mechanism parallel machine central axis.

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE293226C (en) *
BE563361A (en) *
NL51251C (en) *
DE458506C (en) * 1925-12-09 1928-04-12 Luft Fahrzeug Ges M B H Lateral support element (fin, rudder, sword, etc.) for watercraft
GB457755A (en) * 1935-06-05 1936-12-07 David Ramsay Smith Improvements in and relating to rudders
US2608173A (en) * 1948-09-27 1952-08-26 Kersten Herbert Hinzie Windward lifting centerboard
FR1015374A (en) * 1950-03-30 1952-09-16 Rudder, especially for light and fast boats
FR1295928A (en) * 1961-01-13 1962-06-15 Continuous thrust undulating propellant rudder
DE1952809A1 (en) * 1969-10-21 1971-04-29 Otto Kopp Fin rudder
US3585957A (en) * 1969-03-17 1971-06-22 Stanley R Rich Self-flexing finlike structure
US3670685A (en) * 1970-08-03 1972-06-20 Aldo Milessa Flexible rudder
FR2202496A5 (en) * 1972-10-05 1974-05-03 Hennebutte Georges
FR2333701A1 (en) * 1975-12-02 1977-07-01 Faure B Small boat propulsion element fitted to rudder - is in form of flexible fin mounted on rudder blade

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE293226C (en) *
BE563361A (en) *
NL51251C (en) *
DE458506C (en) * 1925-12-09 1928-04-12 Luft Fahrzeug Ges M B H Lateral support element (fin, rudder, sword, etc.) for watercraft
GB457755A (en) * 1935-06-05 1936-12-07 David Ramsay Smith Improvements in and relating to rudders
US2608173A (en) * 1948-09-27 1952-08-26 Kersten Herbert Hinzie Windward lifting centerboard
FR1015374A (en) * 1950-03-30 1952-09-16 Rudder, especially for light and fast boats
FR1295928A (en) * 1961-01-13 1962-06-15 Continuous thrust undulating propellant rudder
US3585957A (en) * 1969-03-17 1971-06-22 Stanley R Rich Self-flexing finlike structure
DE1952809A1 (en) * 1969-10-21 1971-04-29 Otto Kopp Fin rudder
US3670685A (en) * 1970-08-03 1972-06-20 Aldo Milessa Flexible rudder
FR2202496A5 (en) * 1972-10-05 1974-05-03 Hennebutte Georges
FR2333701A1 (en) * 1975-12-02 1977-07-01 Faure B Small boat propulsion element fitted to rudder - is in form of flexible fin mounted on rudder blade

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548149A (en) * 1983-11-04 1985-10-22 Del Raso Americo Rudder for aquatic craft
US6415729B1 (en) * 2000-12-14 2002-07-09 The United States Of America As Represented By The Secretary Of The Navy Side plate rudder system
FR2829742A1 (en) * 2001-09-17 2003-03-21 Pierre Henri Lefebvre Aquatic pedal boat machine having frame with seat/handlebar and connected pedaller/governor/helix and attached two floater floating mechanism parallel machine central axis.

Also Published As

Publication number Publication date
FR2436073B1 (en) 1981-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse