JPS5755284A - Hydrofoil of variable sectional area with flexible membrane - Google Patents

Hydrofoil of variable sectional area with flexible membrane

Info

Publication number
JPS5755284A
JPS5755284A JP12855480A JP12855480A JPS5755284A JP S5755284 A JPS5755284 A JP S5755284A JP 12855480 A JP12855480 A JP 12855480A JP 12855480 A JP12855480 A JP 12855480A JP S5755284 A JPS5755284 A JP S5755284A
Authority
JP
Japan
Prior art keywords
flexible membrane
hydrofoil
sectional area
deflating
surface plate
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.)
Pending
Application number
JP12855480A
Other languages
Japanese (ja)
Inventor
Muneaki Yabuki
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 JP12855480A priority Critical patent/JPS5755284A/en
Publication of JPS5755284A publication Critical patent/JPS5755284A/en
Pending 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

Landscapes

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

Abstract

PURPOSE: To facilitate adequate control of lift coefficient by providing a flexible membrane at a part of the surface plate on each side of the streamlined hydrofoil, and expanding or contracting the flexible membrane by means of eccentric cams, etc.
CONSTITUTION: A part of surface plate on each side of a hydrofoil 1 having a stream lined cross section such as a rudder, skeg or fin keel rigged to a navigating ship is coated with a flexible membrane 2. A blade contour of most adequate lift coefficient is easily attained by swelling out or deflating this flexible membrane is easily attained by swelling out or deflating this flexible membrane by means of eccentric cams 4 turning on its rotary axes 3.
COPYRIGHT: (C)1982,JPO&Japio
JP12855480A 1980-09-18 1980-09-18 Hydrofoil of variable sectional area with flexible membrane Pending JPS5755284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12855480A JPS5755284A (en) 1980-09-18 1980-09-18 Hydrofoil of variable sectional area with flexible membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12855480A JPS5755284A (en) 1980-09-18 1980-09-18 Hydrofoil of variable sectional area with flexible membrane

Publications (1)

Publication Number Publication Date
JPS5755284A true JPS5755284A (en) 1982-04-02

Family

ID=14987625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12855480A Pending JPS5755284A (en) 1980-09-18 1980-09-18 Hydrofoil of variable sectional area with flexible membrane

Country Status (1)

Country Link
JP (1) JPS5755284A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6474195A (en) * 1987-09-14 1989-03-20 Seishiro Yoshihara Bottom device for yacht
WO2007042977A2 (en) 2005-10-10 2007-04-19 David Laszlo Guiding appendage for sailboats and similar floating vessels
WO2011159156A3 (en) * 2010-06-15 2012-04-26 Binkhorstdesign Beheer Bv Watercraft having a fin with controllable lift
GB2491647A (en) * 2011-06-10 2012-12-12 Paget Mccormick A deformable daggerboard
KR101245764B1 (en) * 2010-10-25 2013-03-25 삼성중공업 주식회사 Ship rudder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6474195A (en) * 1987-09-14 1989-03-20 Seishiro Yoshihara Bottom device for yacht
WO2007042977A2 (en) 2005-10-10 2007-04-19 David Laszlo Guiding appendage for sailboats and similar floating vessels
WO2011159156A3 (en) * 2010-06-15 2012-04-26 Binkhorstdesign Beheer Bv Watercraft having a fin with controllable lift
KR101245764B1 (en) * 2010-10-25 2013-03-25 삼성중공업 주식회사 Ship rudder
GB2491647A (en) * 2011-06-10 2012-12-12 Paget Mccormick A deformable daggerboard

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