The 2015 show's main theme – 'Heroes Of The Sky' – paid tribute to ANZAC and the pioneers of military aviation, who began fighting in the air for the first time a century ago in World War 1. The show also provided the first significant observance of the Gallipoli campaign in its centenary year. Visitors were treated to the sights and sounds of a number of replica and reproduction World War I aircraft in the air and on static display.