A group of hang gliding enthusiasts from California got together and organised what became known as the 'Otto Lilienthal Anniversary   Hang Glider Meeting'.(to celebrate Otto's 123rd birthday) The event took place on the 23rd May 1971 and attracted well over fifty pilots from all over America. It was held in the city of Newport Beach 
        on a hill above Crona Del Mar,   California.  Here's a Google map centered on 
        the approximate location (now covered   with urban sprawl).You can orient the meet location on the map from the location of   the
        reservoir to the NW in the video.
      Taras Kiceniuk flying his 'Batso' black plastic covered
        Rogallo wing held the   duration record that day. Although Ton Dickensons name has also been mention by others, as he managed to stay   aloft in free flight for a quarter of a minute, covering  a distance of over   300ft. All flyers received a 'Participants Certificate'. to see Larry Dighera's please click here.
      The event really caught the public‘s   imagination and is sometimes regarded by   many as the starting point of hang gliding as we know it today. (This is   certainly the American view but it is more accurately the end of the old type of   hang gliding.)
      The following original  16mm film was taken  by Larry Dighera's Father George and later Bill Liscomb was commissioned to  digitise it. Larry has given me permission to use the video and has also helped with these details. He is the pilot 
        (in the orange and navy polo shirt) of the red, white, and blue   Hang 
        Loose biplane.
       Bill Liscomb seems to have found some additional motion picture  
        footage of the   event and has included it in his latest documentary 'Big Blue Sky',  and also does an excellent job of documenting 
        the very   early, pre May 23, 1971 pioneers in the USA.
      Big Blue Sky youtube trailer, or visit Bills website specially set up for this video.