EP0118737A2 - Stabilizing foils for a hydrofoil craft - Google Patents
Stabilizing foils for a hydrofoil craft Download PDFInfo
- Publication number
- EP0118737A2 EP0118737A2 EP84101130A EP84101130A EP0118737A2 EP 0118737 A2 EP0118737 A2 EP 0118737A2 EP 84101130 A EP84101130 A EP 84101130A EP 84101130 A EP84101130 A EP 84101130A EP 0118737 A2 EP0118737 A2 EP 0118737A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydrofoil
- craft
- movable flaps
- fixed fins
- foil
- 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.)
- Withdrawn
Links
Images
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
-
- 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
- B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
- B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
- B63B1/28—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
Definitions
- the present invention relates to a hydrofoil craft.
- Fig. 1 shows a hydrofoil craft heretofore known.
- the hydrofoil craft is adapted to travel with its hull 2 lifted clear of the water by the dynamic lift generated by a hydrofoil 1.
- the craft is so constructed as to reduce rolling when subjected to the force of waves or like external force during the foilborne operation. More specifically, when the craft, while travelling stably in an upright position relative to the water surface A shown in Fig. 1, is inclined clockwise in the drawing by rolling as represented by a water surface B, a larger portion of the hydrofoil 1 is sub- . merged on the right-hand side of the drawing than on the left side.
- a foilborne- operation movable flap attached to the rear edge of the front hydrofoil 1 may also be operated to increase the righting moment M1.
- the lift force F1 acts perpendicular to the hydrofoil 1, the distance between the line L1 of action of the force and the center of gravity G, namely, the arm al of the righting moment M1, is small, and the righting moment is therefore small relative to the lift force.
- the horizontal component F3 of the lift force F1 further drifts the craft sidewise.
- An object of the present invention is to provide a hydrofoil craft involving a greatly reduced likelihood of rolling and comfortable to board.
- the hydrofoil craft of the invention has rolling preventing movable flaps projecting from an underwater portion of a hydrofoil thereof approximately at right angles with the foil, each of the movable flaps being turnable about a rod extending in the direction of the projection.
- the movable flap for preventing rolling is controlled to a suitable angle to generate a lift force in this portion to give a righting moment. Since this righting moment is added to the righting moment of a lift force usually generated by the hydrofoil, an increased overall righting moment is available.
- the rolling preventing movable flap is projected from the hydrofoil approximately at right angles thereto, the line of action of the lift force generated in this portion is approximately parallel to the foil, thus lengthening the righting moment arm, with the result that a great righting moment can be obtained from a relatively small lift force.
- This' greatly mitigates the rolling of the craft and gives greatly enhanced comfort to the passenger.
- the sidewise horizontal component of the lift force generated in the conventional hydrofoil is offset by the sidewise horizontal component of the lift force generated in the movable flap, so that the craft can be prevented from drifting sidewise. This also renders the craft more comfortable to board.
- the vertical component of the lift force generated in the flap portion is small, the craft can travel, for example, with the aid of the rudder in the event of a malfunction of the flap or the control means therefor.
- the hydrofoil be provided with fixed fins in addition to the rolling preventing movable flaps.
- the flaps can then be easily attached to the hydrofoil which has a relatively small thickness by utilizing the fixed fins for supporting the flaps.
- Fig. 3 shows a surface-piercing hydrofoil craft, which is provided with a front hydrofoil (front foil) 11 and a rear hydrofoil (rear foil) 12 below its hull 10.
- Movable flaps 13 the same as those already known for foilborne travel are attached to and continuous with the rear edges, of oppposite slanting portions of the front foil 11.
- Propellers 14 and a rudder 15 are mounted on the rear foil 12.
- the craft is equipped with a rolling preventing system.
- This system consists essentially of a pair of opposite fixed fins 16 secured to the lower side of the front foil 11, a pair of opposite rolling preventing movable flaps 17 attached to the rear side of the fixed fins 16 individually, a pair.of opposite hydraulic cylinders 18 disposed in the interior of the front foil 11 for driving the flaps, a pair of opposite valve panels 20 connected to the hydraulic cylinders 18 by hydraulic ducts 19 individually, a control panel 22 connected to the valve panels 20 by signal lines 21, and a rolling sensor 24 connected to the control panel 22 by a signal line 23.
- the fixed fins 16 which are arranged symmetrically with respect to the center line of the craft, are secured to the slanting portions of the front foil 11 which are to be submerged at all times so as to project from the lower side of the front foil 11 at right angles thereto.
- brackets are attached to the rear end of each fin 16.
- a movable flap support rod 25 at right angles to the front foil 11 is rotatably supported by the brackets.
- the movable flap 17 is attached at its front end to the rod 25 and positioned at right angles to the front foil 11.
- the upper end of the flap support rod 25 extends into the front foil 11 and has a tiller 26 fixed thereto.
- a connecting rod 28 for interconnecting the tiller 26 and the rod 27 of the hydraulic cylinder 18 is pivoted at its opposite ends to the forward ends of the tiller 26 and the rod 27.
- the front foil 11 is internally provided with an angle sensor for detecting the angle of the movable flap 17 by detecting the position (displacement) of the rod 27 or the angle (amount of rotation) of the tiller 26.
- the angle sensor is connected to the corresponding valve panel 20 by a signal line.
- Each valve panel 20 is provided, for example, with a servo valve (not shown) and disposed within the hull 10 at a suitable location, for example, under the floor.
- a movable flap driving hydraulic pump to be driven by the main machine of the craft is connected to the valve panel 20.by . a hydraulic duct.
- the control panel 22 is provided with a computer, etc. and disposed in the pilothouse of the hull 10.
- the rolling sensor 24 is disposed at a suitable location, for example, under the floor of the pilothouse.
- the hydraulic ducts 19, the signal lines 21,23, are arranged within the front foil 11 and the hull 10 at suitable locations.
- the rolling preventing system functions automatically, automatically controlling the angle of the movable flaps 17 to reduce the rolling of the craft as will be described below.
- the rolling sensor 24 detects the rolling of the craft to deliver a signal to the computer housed in the control panel 22.
- the computer calculates the angle of -each movable flap 17 to reduce the rolling and feeds an-angle command signal to the valve panel 20.
- the servo valve of the valve panel 20 controls the amount of oil to be fed to the hydraulic cylinder 18 from the hydraulic pump so that the flap 17 is turned to the angle calculated by the computer.
- the flap 17 is controlled to the proper angle to mitigate the rolling.
- the righting moment of the lift force F1 generated in the foils 11,12 and the righting moment of the lift force F2 generated in the movable flaps F7 combine to give a great righting moment M2, which restores the hull 10 to the initial position. Furthermore, the line L2 of action of the lift force F2 generated in the flap 17 is parallel to the front foil 11 to lengthen the arm a2 of the righting moment, so that a great righting moment can be obtained from a relatively small lift force. Meanwhile, experiments have shown that the rolling preventing system is most effective for reducing marked rolling at the resonance (tuning) point of rolling and waves, greatly decreasing the rolling angle at the resonance point to render the craft very comfortable to board. Moreover, the sidewise horizontal component of the lift force F1 generated in the foils 11 and 12 is offset by the sidewise horizontal component of the lift force F2 in the movable flap 17 to prevent the craft from rolling. This also gives enhanced comfort to the passenger.
- Any method suited to the craft is usable for controlling the angle of the movable flap 17 by the control panel 22.
- the rolling preventing movable flap 17 is usable also as a rudder.
- the flap is coupled to the usual rudder 15 attached to the rear foil 12, the craft can be steered with improved efficiency.
- the arrangement of the fixed fins 16 and the rolling preventing movable flaps 17 can be modified suitably, for example, as shown in Figs. 5 and 6.
- a pair of opposite fixed fins 16 is secured to the lower side of a front foil 11, and a movable flap 17 is turnably attached to the lower end of each fin 16.
- a pair of opposite fixed fins is secured to the upper side of a front foil 11, while movable flaps 17 are turnably attached to the lower side of the front foil 11 in corresponding relation to the fins 16.
- the fixed fins 16 can be disposed below the movable flaps 17 in reverse relation to the arrangement shown in Fig. 6.
- the front foil 11 is provided with the fixed fins 16 and the rolling preventing movable flaps 17 in the foregoing embodiments, an equivalent effect will be also achieved if the turnable movable flaps 17 only are provided on the upper or lower side of the front foil 11 at suitable locations, for example, as shown in Figs. 7 to 10.
- the fixed fin 16, the movable flap 17 and the turning rod (support rod 25) for the flap extend from the front foil 11 at right angles thereto according to the foregoing embodiments, these members may be slightly inclined sidewise relative to the front foil 11.
- the axis of rotation of the movable flap 17 extent through, or in the vicinity of, the center of gravity G of the craft.
- the number of the fixed fin 16, as well as that of the movable flaps 17, is suitably variable.
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Metal Rolling (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
Description
- The present invention relates to a hydrofoil craft. Fig. 1 shows a hydrofoil craft heretofore known. The hydrofoil craft is adapted to travel with its
hull 2 lifted clear of the water by the dynamic lift generated by a hydrofoil 1. The craft is so constructed as to reduce rolling when subjected to the force of waves or like external force during the foilborne operation. More specifically, when the craft, while travelling stably in an upright position relative to the water surface A shown in Fig. 1, is inclined clockwise in the drawing by rolling as represented by a water surface B, a larger portion of the hydrofoil 1 is sub- . merged on the right-hand side of the drawing than on the left side. This causes the hydrofoil 1 to generate a lift force F1, which exerts a counterclockwise restoring or righting moment M1 on thehull 2 to restore thehull 2 to the original upright position. A foilborne- operation movable flap attached to the rear edge of the front hydrofoil 1 may also be operated to increase the righting moment M1. However, since the lift force F1 acts perpendicular to the hydrofoil 1, the distance between the line L1 of action of the force and the center of gravity G, namely, the arm al of the righting moment M1, is small, and the righting moment is therefore small relative to the lift force. The horizontal component F3 of the lift force F1 further drifts the craft sidewise. When the movable flap on the hydrofoil 1 is operated to increase the righting moment M1, a malfunction of the flap or the control means therefor, if occuring, renders the craft unoperable in foilborne condition. - An object of the present invention is to provide a hydrofoil craft involving a greatly reduced likelihood of rolling and comfortable to board.
- The hydrofoil craft of the invention has rolling preventing movable flaps projecting from an underwater portion of a hydrofoil thereof approximately at right angles with the foil, each of the movable flaps being turnable about a rod extending in the direction of the projection. With the hydrofoil craft of the present invention, the movable flap for preventing rolling is controlled to a suitable angle to generate a lift force in this portion to give a righting moment. Since this righting moment is added to the righting moment of a lift force usually generated by the hydrofoil, an increased overall righting moment is available. Further because the rolling preventing movable flap is projected from the hydrofoil approximately at right angles thereto, the line of action of the lift force generated in this portion is approximately parallel to the foil, thus lengthening the righting moment arm, with the result that a great righting moment can be obtained from a relatively small lift force. This' greatly mitigates the rolling of the craft and gives greatly enhanced comfort to the passenger. The sidewise horizontal component of the lift force generated in the conventional hydrofoil is offset by the sidewise horizontal component of the lift force generated in the movable flap, so that the craft can be prevented from drifting sidewise. This also renders the craft more comfortable to board. Further because the vertical component of the lift force generated in the flap portion is small, the craft can travel, for example, with the aid of the rudder in the event of a malfunction of the flap or the control means therefor.
- It is desirable that the hydrofoil be provided with fixed fins in addition to the rolling preventing movable flaps. The flaps can then be easily attached to the hydrofoil which has a relatively small thickness by utilizing the fixed fins for supporting the flaps. Other features of the present invention will become apparent from the following description.
- Fig. 1 is a front view showing a conventional craft;
- Fig. 2 is a front view showing a first embodiment of the invention;
- Fig. 3 is a perspective view of the same;
- Fig. 4 is an enlarged view partly broken away and showing the main portion of Fig. 3;
- Fig. 5 is a front view of a front hydrofoil showing another embodiment of the invention;
- Fig. 6 is a front view of a front hydrofoil showing another embodiment of the invention;
- Fig. 7 is a front view of a front hydrofoil showing another embodiment of the invention;
- Fig. 8 is a front view of a front hydrofoil showing another embodiment of the invention;
- Fig. 9 is a front view of a front hydrofoil showing another embodiment of the invention; and
- Fig. 10 is a front view of a front hydrofoil showing still another embodiment of the invention.
- Fig. 3 shows a surface-piercing hydrofoil craft, which is provided with a front hydrofoil (front foil) 11 and a rear hydrofoil (rear foil) 12 below its
hull 10.Movable flaps 13 the same as those already known for foilborne travel are attached to and continuous with the rear edges, of oppposite slanting portions of thefront foil 11.Propellers 14 and arudder 15 are mounted on therear foil 12. The craft is equipped with a rolling preventing system. This system consists essentially of a pair of opposite fixedfins 16 secured to the lower side of thefront foil 11, a pair of opposite rolling preventingmovable flaps 17 attached to the rear side of the fixedfins 16 individually, a pair.of oppositehydraulic cylinders 18 disposed in the interior of thefront foil 11 for driving the flaps, a pair ofopposite valve panels 20 connected to thehydraulic cylinders 18 byhydraulic ducts 19 individually, acontrol panel 22 connected to thevalve panels 20 bysignal lines 21, and arolling sensor 24 connected to thecontrol panel 22 by asignal line 23. The fixedfins 16 which are arranged symmetrically with respect to the center line of the craft, are secured to the slanting portions of thefront foil 11 which are to be submerged at all times so as to project from the lower side of thefront foil 11 at right angles thereto. Although unillustrated, brackets are attached to the rear end of eachfin 16. A movableflap support rod 25 at right angles to thefront foil 11 is rotatably supported by the brackets. Themovable flap 17 is attached at its front end to therod 25 and positioned at right angles to thefront foil 11. The upper end of theflap support rod 25 extends into thefront foil 11 and has atiller 26 fixed thereto. A connectingrod 28 for interconnecting thetiller 26 and therod 27 of thehydraulic cylinder 18 is pivoted at its opposite ends to the forward ends of thetiller 26 and therod 27. Therod 27 of thehydraulic cylinder 18, when reciprocatingly moving forward and backward over a predetermined distance, reciprocatingly turns themovable flap 17 through a predetermined angular range. When stopped at a desired position, therod 27 holds theflap 17 at an angle corresponding to that position. Although not shown, thefront foil 11 is internally provided with an angle sensor for detecting the angle of themovable flap 17 by detecting the position (displacement) of therod 27 or the angle (amount of rotation) of thetiller 26. The angle sensor is connected to thecorresponding valve panel 20 by a signal line. - Each
valve panel 20 is provided, for example, with a servo valve (not shown) and disposed within thehull 10 at a suitable location, for example, under the floor. Although unillustrated, a movable flap driving hydraulic pump to be driven by the main machine of the craft is connected to the valve panel 20.by.a hydraulic duct. Thecontrol panel 22 is provided with a computer, etc. and disposed in the pilothouse of thehull 10. Therolling sensor 24 is disposed at a suitable location, for example, under the floor of the pilothouse. Thehydraulic ducts 19, thesignal lines front foil 11 and thehull 10 at suitable locations. - When the start button (not shown) on the
control panel 22 is manipulated, the rolling preventing system functions automatically, automatically controlling the angle of themovable flaps 17 to reduce the rolling of the craft as will be described below. Therolling sensor 24 detects the rolling of the craft to deliver a signal to the computer housed in thecontrol panel 22. The computer calculates the angle of -eachmovable flap 17 to reduce the rolling and feeds an-angle command signal to thevalve panel 20. In accordance with the command from the computer and the output from the angle sensor for themovable flap 17, the servo valve of thevalve panel 20 controls the amount of oil to be fed to thehydraulic cylinder 18 from the hydraulic pump so that theflap 17 is turned to the angle calculated by the computer. Thus theflap 17 is controlled to the proper angle to mitigate the rolling. - The function of the rolling preventing
movable flap 17 will be described in detail with reference to Fig. 2. - When the craft, while cruising stably in an upright position as represented by the water surface A in Fig. 2, is inclined clockwise in the drawing owing to rolling as represented by the water surface C, the angle of each
flap 17 is so controlled that a lift force F2 acting obliquely rightward in the drawing will be generated -in the flap portion, whereby thehull 10 is subjected to a counterclockwise righting moment. At the same time, the inclination of thehull 10 produces a difference in the submerged area between the opposite sides of thehydrofoils foils hull 10 in the drawing. The righting moment of the lift force F1 generated in thefoils hull 10 to the initial position. Furthermore, the line L2 of action of the lift force F2 generated in theflap 17 is parallel to thefront foil 11 to lengthen the arm a2 of the righting moment, so that a great righting moment can be obtained from a relatively small lift force. Meanwhile, experiments have shown that the rolling preventing system is most effective for reducing marked rolling at the resonance (tuning) point of rolling and waves, greatly decreasing the rolling angle at the resonance point to render the craft very comfortable to board. Moreover, the sidewise horizontal component of the lift force F1 generated in thefoils movable flap 17 to prevent the craft from rolling. This also gives enhanced comfort to the passenger. - Any method suited to the craft is usable for controlling the angle of the
movable flap 17 by thecontrol panel 22. - The rolling preventing
movable flap 17 is usable also as a rudder. When the flap is coupled to theusual rudder 15 attached to therear foil 12, the craft can be steered with improved efficiency. - The arrangement of the fixed
fins 16 and the rolling preventingmovable flaps 17 can be modified suitably, for example, as shown in Figs. 5 and 6. - With reference to Fig. 5, a pair of opposite fixed
fins 16 is secured to the lower side of afront foil 11, and amovable flap 17 is turnably attached to the lower end of eachfin 16. - With reference to Fig. 6, a pair of opposite fixed fins is secured to the upper side of a
front foil 11, whilemovable flaps 17 are turnably attached to the lower side of thefront foil 11 in corresponding relation to thefins 16. The fixedfins 16 can be disposed below themovable flaps 17 in reverse relation to the arrangement shown in Fig. 6. - Although the
front foil 11 is provided with the fixedfins 16 and the rolling preventingmovable flaps 17 in the foregoing embodiments, an equivalent effect will be also achieved if the turnablemovable flaps 17 only are provided on the upper or lower side of thefront foil 11 at suitable locations, for example, as shown in Figs. 7 to 10. - While the fixed
fin 16, themovable flap 17 and the turning rod (support rod 25) for the flap extend from thefront foil 11 at right angles thereto according to the foregoing embodiments, these members may be slightly inclined sidewise relative to thefront foil 11. To increase the righting moment of the lift force F2 to be generated in themovable flap 17 to the greatest possible extent, it is desirable that the axis of rotation of themovable flap 17 extent through, or in the vicinity of, the center of gravity G of the craft. The number of the fixedfin 16, as well as that of themovable flaps 17, is suitably variable.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58017853A JPS59143791A (en) | 1983-02-04 | 1983-02-04 | Hydrofoil boat |
JP17853/83 | 1983-02-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0118737A2 true EP0118737A2 (en) | 1984-09-19 |
EP0118737A3 EP0118737A3 (en) | 1985-01-16 |
Family
ID=11955216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84101130A Withdrawn EP0118737A3 (en) | 1983-02-04 | 1984-02-03 | Stabilizing foils for a hydrofoil craft |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0118737A3 (en) |
JP (1) | JPS59143791A (en) |
KR (1) | KR840007688A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992016406A1 (en) * | 1991-03-14 | 1992-10-01 | Anthony Francis Pusterla | High speed water craft |
GB2341143A (en) * | 1997-05-06 | 2000-03-08 | Univ Stellenbosch | Hydrofoil supported water craft |
WO2011075053A1 (en) * | 2009-12-17 | 2011-06-23 | Alexander Sahlin | Hydrofoil arrangement |
CN102963491A (en) * | 2012-09-20 | 2013-03-13 | 江苏科技大学 | Back-hydrofoil high-speed wing rowboat |
DE102013002720A1 (en) | 2013-02-12 | 2014-08-14 | solartourist UG (haftungsbeschränkt) | Solar hydrofoil structure for solar-powered water craft, has unlimited expandable accumulators that accumulates excess electric solar energy not immediately consumed by operation of vehicle for given solar speed |
EP2894090A1 (en) * | 2014-01-14 | 2015-07-15 | Michael Barron | Boat hydrofoil |
WO2018229353A1 (en) * | 2017-06-12 | 2018-12-20 | Seabubbles | Vessel with high-stability hydrofoils |
WO2018229357A1 (en) * | 2017-06-12 | 2018-12-20 | Seabubbles | Vessel with high-stability hydrofoils |
CN109178233A (en) * | 2018-07-13 | 2019-01-11 | 哈尔滨工程大学 | A kind of multiple degrees of freedom adjustment tailgate with wing shaped aileron |
WO2021191729A1 (en) | 2020-03-27 | 2021-09-30 | Fly 4 All Sa | Hydrofoil with autopilot configuration |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06263082A (en) * | 1993-03-12 | 1994-09-20 | Hitachi Zosen Corp | Catamaran type hydrofoil craft |
CN108995761B (en) * | 2018-07-17 | 2020-02-07 | 浙江海洋大学 | Ship body capable of reducing river resistance |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1118635B (en) * | 1956-06-01 | 1961-11-30 | Alexandre Korganoff | Submarine with wings |
GB1173335A (en) * | 1966-02-07 | 1969-12-10 | Supramar Ag | Automatically stabilised hydrofoil boat |
GB1346642A (en) * | 1970-05-26 | 1974-02-13 | ||
US4100876A (en) * | 1977-05-18 | 1978-07-18 | The Boeing Company | Hydrofoil fixed strut steering control |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1157956B (en) * | 1961-08-28 | 1963-11-21 | Iaweseria Flugzeugbau Ges Mit | Fast ship with underwater hydrofoils |
US3180300A (en) * | 1963-10-01 | 1965-04-27 | Bell Aerospace Corp | Speed reducing unit for positioning a hydrofoil assembly |
JPS5031037Y2 (en) * | 1971-09-28 | 1975-09-10 | ||
JPS5411498Y2 (en) * | 1972-04-21 | 1979-05-23 | ||
US3899987A (en) * | 1974-04-10 | 1975-08-19 | Boeing Co | Fail-safe control system for hydrofoil craft |
-
1983
- 1983-02-04 JP JP58017853A patent/JPS59143791A/en active Pending
-
1984
- 1984-02-03 EP EP84101130A patent/EP0118737A3/en not_active Withdrawn
- 1984-02-04 KR KR1019840000527A patent/KR840007688A/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1118635B (en) * | 1956-06-01 | 1961-11-30 | Alexandre Korganoff | Submarine with wings |
GB1173335A (en) * | 1966-02-07 | 1969-12-10 | Supramar Ag | Automatically stabilised hydrofoil boat |
GB1346642A (en) * | 1970-05-26 | 1974-02-13 | ||
US4100876A (en) * | 1977-05-18 | 1978-07-18 | The Boeing Company | Hydrofoil fixed strut steering control |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992016406A1 (en) * | 1991-03-14 | 1992-10-01 | Anthony Francis Pusterla | High speed water craft |
GB2341143A (en) * | 1997-05-06 | 2000-03-08 | Univ Stellenbosch | Hydrofoil supported water craft |
US6164235A (en) * | 1997-05-06 | 2000-12-26 | Universiteit Van Stellenbosch | Hydrofoil supported water craft |
GB2341143B (en) * | 1997-05-06 | 2002-04-17 | Univ Stellenbosch | Hydrofoil supported water craft |
WO2011075053A1 (en) * | 2009-12-17 | 2011-06-23 | Alexander Sahlin | Hydrofoil arrangement |
US8857363B2 (en) | 2009-12-17 | 2014-10-14 | Elektrofoil Ab | Hydrofoil arrangement |
CN102963491B (en) * | 2012-09-20 | 2015-10-21 | 江苏科技大学 | Rear hydrofoil high speed gliding-hydrofoil craft |
CN102963491A (en) * | 2012-09-20 | 2013-03-13 | 江苏科技大学 | Back-hydrofoil high-speed wing rowboat |
DE102013002720A1 (en) | 2013-02-12 | 2014-08-14 | solartourist UG (haftungsbeschränkt) | Solar hydrofoil structure for solar-powered water craft, has unlimited expandable accumulators that accumulates excess electric solar energy not immediately consumed by operation of vehicle for given solar speed |
EP2894090A1 (en) * | 2014-01-14 | 2015-07-15 | Michael Barron | Boat hydrofoil |
GB2522066B (en) * | 2014-01-14 | 2016-07-06 | Barron Michael | A sailboat with a hydrofoil having first and second hydrodynamic sections |
WO2018229353A1 (en) * | 2017-06-12 | 2018-12-20 | Seabubbles | Vessel with high-stability hydrofoils |
WO2018229357A1 (en) * | 2017-06-12 | 2018-12-20 | Seabubbles | Vessel with high-stability hydrofoils |
WO2018229420A1 (en) * | 2017-06-12 | 2018-12-20 | Seabubbles | Vessel with high-stability hydrofoils |
CN109178233A (en) * | 2018-07-13 | 2019-01-11 | 哈尔滨工程大学 | A kind of multiple degrees of freedom adjustment tailgate with wing shaped aileron |
WO2021191729A1 (en) | 2020-03-27 | 2021-09-30 | Fly 4 All Sa | Hydrofoil with autopilot configuration |
Also Published As
Publication number | Publication date |
---|---|
JPS59143791A (en) | 1984-08-17 |
KR840007688A (en) | 1984-12-10 |
EP0118737A3 (en) | 1985-01-16 |
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