==== Design and Development ====
  * [[designs:1960s]] including drawings.
  * [[history:1950s 1960s photos]]
  * [[boats:1494]]
  * [[history:1970s designs]] including drawings.
  * [[history:1970s photos]]
  * [[history:1980s designs]] including drawings
  * [[history:1980s and 1990s Aus and NZ Designs and Drawings]]
  * [[history:1980s photos]]
  * [[history:Pole Kites]]
  * [[history:1990s designs]] including drawings
  * [[history:bethwaite_wing_mast]]
  * [[history:design sketches]]
  * [[tech:designs|Recent Designs]]