FR2380942A1 - Plastics aerofoil-section spar - has central groove reached via narrow neck to house luff ropes - Google Patents

Plastics aerofoil-section spar - has central groove reached via narrow neck to house luff ropes

Info

Publication number
FR2380942A1
FR2380942A1 FR7804350A FR7804350A FR2380942A1 FR 2380942 A1 FR2380942 A1 FR 2380942A1 FR 7804350 A FR7804350 A FR 7804350A FR 7804350 A FR7804350 A FR 7804350A FR 2380942 A1 FR2380942 A1 FR 2380942A1
Authority
FR
France
Prior art keywords
luff
ropes
aerofoil
house
plastics
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Withdrawn
Application number
FR7804350A
Other languages
French (fr)
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 FR2380942A1 publication Critical patent/FR2380942A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

The track consists of a groove in the centre of the mast or spar (1). The groove is large enough to receive a halyard (6) and two luff ropes (7, 9) which form part of the sails (8, 10). Normally the groove will only hold one sail but the second rope can be rove for sail changing. Access to the groove is obtained by a narrow throat at the trailing edge of the spart. The spar is formed from plastic material and has an aerofoil section.
FR7804350A 1977-02-18 1978-02-16 Plastics aerofoil-section spar - has central groove reached via narrow neck to house luff ropes Withdrawn FR2380942A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB692177 1977-02-18

Publications (1)

Publication Number Publication Date
FR2380942A1 true FR2380942A1 (en) 1978-09-15

Family

ID=9823288

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7804350A Withdrawn FR2380942A1 (en) 1977-02-18 1978-02-16 Plastics aerofoil-section spar - has central groove reached via narrow neck to house luff ropes

Country Status (2)

Country Link
JP (1) JPS53104992A (en)
FR (1) FR2380942A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078350A1 (en) * 1981-10-29 1983-05-11 Dowling Design & Development Limited Means for storing and attaching sails to masts or stays
GB2477167A (en) * 2010-01-25 2011-07-27 Ralph Maurice Roberts A luff spar for a foresail

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078350A1 (en) * 1981-10-29 1983-05-11 Dowling Design & Development Limited Means for storing and attaching sails to masts or stays
GB2477167A (en) * 2010-01-25 2011-07-27 Ralph Maurice Roberts A luff spar for a foresail
GB2477167B (en) * 2010-01-25 2012-02-22 Ralph Maurice Roberts Aero luff spar

Also Published As

Publication number Publication date
JPS53104992A (en) 1978-09-12

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Legal Events

Date Code Title Description
ST Notification of lapse