GB2171363B - Yaw angle and life/drag ratio optimising hydrofoil keel - Google Patents

Yaw angle and life/drag ratio optimising hydrofoil keel

Info

Publication number
GB2171363B
GB2171363B GB08601748A GB8601748A GB2171363B GB 2171363 B GB2171363 B GB 2171363B GB 08601748 A GB08601748 A GB 08601748A GB 8601748 A GB8601748 A GB 8601748A GB 2171363 B GB2171363 B GB 2171363B
Authority
GB
United Kingdom
Prior art keywords
optimising
life
yaw angle
drag ratio
hydrofoil
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.)
Expired
Application number
GB08601748A
Other versions
GB2171363A (en
GB8601748D0 (en
Inventor
Merrick Levison Sims
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
Publication of GB8601748D0 publication Critical patent/GB8601748D0/en
Publication of GB2171363A publication Critical patent/GB2171363A/en
Application granted granted Critical
Publication of GB2171363B publication Critical patent/GB2171363B/en
Expired 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 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/38—Keels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels
    • 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
    • B63B2039/063—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 the foils comprising flexible portions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
GB08601748A 1984-08-30 1986-01-24 Yaw angle and life/drag ratio optimising hydrofoil keel Expired GB2171363B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU32931/84A AU567757B2 (en) 1983-09-05 1984-08-30 Improved hydrofoil keel.

Publications (3)

Publication Number Publication Date
GB8601748D0 GB8601748D0 (en) 1986-02-26
GB2171363A GB2171363A (en) 1986-08-28
GB2171363B true GB2171363B (en) 1988-01-27

Family

ID=3720401

Family Applications (9)

Application Number Title Priority Date Filing Date
GB858503569A Pending GB8503569D0 (en) 1984-08-30 1985-02-12 Pre-treating plant seeds hydrofoil keel
GB08503596A Expired GB2164296B (en) 1984-08-30 1985-02-12 Improved hydrofoil keel
GB858527394A Pending GB8527394D0 (en) 1984-08-30 1985-11-06 Yaw angle & lift
GB858527393A Pending GB8527393D0 (en) 1984-08-30 1985-11-06 Vorticity reducing hydrofoil keel
GB858527391A Pending GB8527391D0 (en) 1984-08-30 1985-11-06 Keel cambering mechanism
GB858527392A Pending GB8527392D0 (en) 1984-08-30 1985-11-06 Separation plate
GB08601748A Expired GB2171363B (en) 1984-08-30 1986-01-24 Yaw angle and life/drag ratio optimising hydrofoil keel
GB08601688A Expired GB2171361B (en) 1984-08-30 1986-01-24 Separation plate for hydrofoil keel for sailing vessels
GB08601689A Expired GB2171362B (en) 1984-08-30 1986-01-24 Improved keel cambering mechanism

Family Applications Before (6)

Application Number Title Priority Date Filing Date
GB858503569A Pending GB8503569D0 (en) 1984-08-30 1985-02-12 Pre-treating plant seeds hydrofoil keel
GB08503596A Expired GB2164296B (en) 1984-08-30 1985-02-12 Improved hydrofoil keel
GB858527394A Pending GB8527394D0 (en) 1984-08-30 1985-11-06 Yaw angle & lift
GB858527393A Pending GB8527393D0 (en) 1984-08-30 1985-11-06 Vorticity reducing hydrofoil keel
GB858527391A Pending GB8527391D0 (en) 1984-08-30 1985-11-06 Keel cambering mechanism
GB858527392A Pending GB8527392D0 (en) 1984-08-30 1985-11-06 Separation plate

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB08601688A Expired GB2171361B (en) 1984-08-30 1986-01-24 Separation plate for hydrofoil keel for sailing vessels
GB08601689A Expired GB2171362B (en) 1984-08-30 1986-01-24 Improved keel cambering mechanism

Country Status (2)

Country Link
AU (1) AU567757B2 (en)
GB (9) GB8503569D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4883011A (en) * 1983-09-05 1989-11-28 Sims Merrick L Hydrofoil keel
DE3619962A1 (en) * 1986-06-13 1987-12-17 Erika Mack Device for reducing the lateral drifting of water craft in particular water craft which travel under sail
GB8905231D0 (en) * 1989-03-08 1989-04-19 Birch Fred P Pivotable sailing boat keel
GB2270040A (en) * 1992-08-28 1994-03-02 Robin Henry Douglas Adams Sailing vessels
DE19626786C2 (en) * 1996-07-03 1999-02-11 Horst Wolf Watercraft with a lifting keel
CN206202682U (en) * 2016-09-27 2017-05-31 深圳市大疆创新科技有限公司 Blade, propeller, power suit and unmanned vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2166005C3 (en) * 1971-03-02 1979-10-11 Klepper-Werke, 8200 Rosenheim Plastic boat hull made from glass fiber reinforced plastic
US4089286A (en) * 1976-03-04 1978-05-16 Jeanne Greaves Hall Sheel Sailboat keel

Also Published As

Publication number Publication date
GB8527393D0 (en) 1985-12-11
GB8601689D0 (en) 1986-02-26
GB2171361A (en) 1986-08-28
GB8503569D0 (en) 1985-03-13
GB8527392D0 (en) 1985-12-11
GB2171361B (en) 1988-02-24
GB2171362B (en) 1988-02-24
GB2171363A (en) 1986-08-28
GB8601688D0 (en) 1986-02-26
GB8601748D0 (en) 1986-02-26
GB2164296A (en) 1986-03-19
AU3293184A (en) 1985-03-14
GB8527394D0 (en) 1985-12-11
AU567757B2 (en) 1987-12-03
GB2164296B (en) 1988-02-24
GB2171362A (en) 1986-08-28
GB8527391D0 (en) 1985-12-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee