Mastering the A sail
Though asymmetric spinnakers date as far back as 1865, credit Australian skiff sailor and designer Julian Bethwaite with the invention of the modern asymmetric, which he tested and developed on his Australian 18 designs during the 1980s. Bethwaite needed a spinnaker with a long luff and flat leech on either gybe. This would enable crews to sail the skiffs tight apparent-wind angles without













