GB2220901A - Sailing vessel having fixed wing extending keels - Google Patents

Sailing vessel having fixed wing extending keels Download PDF

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Publication number
GB2220901A
GB2220901A GB8815289A GB8815289A GB2220901A GB 2220901 A GB2220901 A GB 2220901A GB 8815289 A GB8815289 A GB 8815289A GB 8815289 A GB8815289 A GB 8815289A GB 2220901 A GB2220901 A GB 2220901A
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GB
United Kingdom
Prior art keywords
vessel
angled
fixed wing
keels
sailing vessel
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
GB8815289A
Other versions
GB8815289D0 (en
GB2220901B (en
Inventor
David Percival
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 GB8815289A priority Critical patent/GB2220901B/en
Publication of GB8815289D0 publication Critical patent/GB8815289D0/en
Publication of GB2220901A publication Critical patent/GB2220901A/en
Application granted granted Critical
Publication of GB2220901B publication Critical patent/GB2220901B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B2035/009—Wind propelled vessels comprising arrangements, installations or devices specially adapted therefor, other than wind propulsion arrangements, installations, or devices, such as sails, running rigging, or the like, and other than sailboards or the like or related equipment

Landscapes

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

Abstract

A sailing vessel has a main central keel 3 and two parallel bilge keels 4 disposed on opposite sides of the main keel. A fixed wing 5 extends between the bilge keels and has individually controlled trim tabs 7 along the trailing edge. In use the port and starboard trim tabs 7 may be angled in opposite senses to counteract heeling of the vessel or they may be angled upwardly in unison, in heavy weather or if the vessel is running before the wind, to raise the bows in the water. <IMAGE>

Description

Control of sailiny vessel by individual tabs.
This invention relates to underwater control of sailing vessels.
Sailing vessels (yachts) are usually fitted with a single keel, either fixed or drop, to balance tlie thrust of the sails and to assist in it sailing off the wind. Sone other yachts are fitted with bilge keels to save height for towing and also to let it sit upright in dried out rivers at low tide. Ihese keel sit at a slight angle to tile hull.
I propose that by combining tile two existing types, i.e. sillyle and bilge keels a new system of underwater control could be formed w-ith the following additiotis.
Make single and bilge keels parallel. Fit fixed wiiigs between each bilge keel and main keel.
At rear of fixed wings fit individually controlled trim tabs. To be controlled either through hollow bilge keels or maiii keel.

Claims (1)

  1. My tlleory is - if vessel is heeling to starboard, The starboard trim tab is angled up ilie port trim tab is angled dowel This will help vessel to straighten up. @n heavy weather, when bows are s@amming into waves both tab angled up to raise bows. If vessel is running before wind, both tabs anyled up will ayain lift bow.
    Finally, if wing and tabs are used with planing hull, they should interact and put boat on the "plane."
GB8815289A 1988-06-27 1988-06-27 Control of sailing vessel by individual tabs Expired - Lifetime GB2220901B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8815289A GB2220901B (en) 1988-06-27 1988-06-27 Control of sailing vessel by individual tabs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8815289A GB2220901B (en) 1988-06-27 1988-06-27 Control of sailing vessel by individual tabs

Publications (3)

Publication Number Publication Date
GB8815289D0 GB8815289D0 (en) 1988-08-03
GB2220901A true GB2220901A (en) 1990-01-24
GB2220901B GB2220901B (en) 1992-07-22

Family

ID=10639448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8815289A Expired - Lifetime GB2220901B (en) 1988-06-27 1988-06-27 Control of sailing vessel by individual tabs

Country Status (1)

Country Link
GB (1) GB2220901B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169266A (en) * 1966-06-01 1969-11-05 Amiram Steinberg Hydrofoil Sailing Boat
GB1346642A (en) * 1970-05-26 1974-02-13
GB1400537A (en) * 1972-10-16 1975-07-16 Boeing Co Free trailing forward hydrofoils strut
GB1497516A (en) * 1976-08-20 1978-01-12 Boeing Co Flap actuator control unit for a hydrofoil
US4335671A (en) * 1980-07-17 1982-06-22 The Boeing Company Flap leading edge for hydrofoil vessels and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169266A (en) * 1966-06-01 1969-11-05 Amiram Steinberg Hydrofoil Sailing Boat
GB1346642A (en) * 1970-05-26 1974-02-13
GB1400537A (en) * 1972-10-16 1975-07-16 Boeing Co Free trailing forward hydrofoils strut
GB1497516A (en) * 1976-08-20 1978-01-12 Boeing Co Flap actuator control unit for a hydrofoil
US4335671A (en) * 1980-07-17 1982-06-22 The Boeing Company Flap leading edge for hydrofoil vessels and the like

Also Published As

Publication number Publication date
GB8815289D0 (en) 1988-08-03
GB2220901B (en) 1992-07-22

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Legal Events

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

Effective date: 20060627