Machines for making laminate suitable for stress bearing materia

Mainsail construction facilitating airflow thereover

Marine sail system

Marine sail with batten attachment assembly

Marine sail with battens

Mastless sails

Material for the fabrication of sails

Method and apparatus for covering and containing a sail

Method and apparatus for obtaining maximum sail boat velocity

Method and apparatus of automatically controlling sailboat

Method for opening, closing and rotating rigid marine sail

Method for operating a rigid marine sail

Method for silencing halyards

Method of stress distribution in a sail and sail construction

Method of stress distribution in a sail, a sail embodying the sa

Monoplane and low thrust wingsail arrangements

Multisection sail body and method for making