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 dragInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE563361A (en) * | ||||
NL51251C (en) * | ||||
DE293226C (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 |
-
1978
- 1978-09-15 FR FR7827016A patent/FR2436073A1/en active Granted
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE563361A (en) * | ||||
NL51251C (en) * | ||||
DE293226C (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)
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 |