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Topmast - Backstay Configuration

Rig failures are often secondary to problems associated with 'running backstays'. Structural integrity of the mast (especially above the shroud attachments) may be compromised by incorrect tensioning of backstays and/or inadvertent 'Chinese Gybes' (human error) My invention overcomes shortcomings inherent in running backstays. A continuum - port and starboard (fixed) backstays linked by stern-stay. Port backstay originates (attaches) to masthead, extends aft ('clears' mainsail supported by topmast-sprit) stay continues inferiorly to (port) stern-sprit ('clears' boom/mainsail), back-stay then courses to starboard as the stern-stay, which articulates with stern-sprit (starboard) - backstay continues superiorly articulates with second topmast-sprit, terminating at masthead. This 'closed-loop' arrangement adjusts to a changing backstay length when mast cants.

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Rigging with Sails
Rigging without Sails
Topmast Stays
Retractable Backstays
Mast Rigging in Isolation Mast Forward
Triangular Structure
Mast Lateral
Triangular Structure
   
  Deck Apertures for Mast Shrouds  
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KEEL
Mechanical Canting Keel
DAGGERBOARDS
HULL
Bi-Planar (Monocat) Hull
Forward-Looking 3D Sonar
Propulsion
Deck and Cockpit
Water-Making
RIGGING
Topmast - Backstay Configuration
Mechanical Canting Mast
BALLAST BULB
Foiled
Compartmentalised
Adjustable
Ballast
FLOW SIMULATION VIDEOS
  CONTACT
The developments described are the subject of South African Patent Numbers 2015/03490 & 2015/03491
Adjustable Ballast Bulb for a Sailing Vessel - Patent Reference No. US 10,322,773 B2
Sailing Vessel - PCT (Patent Cooperation Treaty) WO 2016/185356
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