The International Scientific and Technical Gliding Organisation, OSTIV, will hold its biannual Congress from 8-13 January 2017 in Benalla, Australia, at the site of the 34rd FAI World Gliding Championships in the Open-, 18m- and 15m-Class. In order to make the Congress a full success, we seek contributions and participatons from many countries, with broad technical and scientific content, according to the Call for abstracts. Opportunity for presentation and discussion is given in the following categories: Scientific Sessions: Meteorology, climatology and Atmospheric Physics as related to soaring flight. Technical Sessions: Aerodynamics, Structures, Materials, Design, Maintenance and Sailplane development. Training and Safety Sessions: Training and Safety, Coaching, Health and Physiology. Joint sessions: Scientific and technical topics, reviews or news, presented in an informative and entertaining way for the broader interest of the World Gliding Championships and OSTIV.