Icosathlon Decathlon, held in Delft, Netherlands. The 2015 event was held 19-20 September. The last European Championships were held on 6 and 7 September 2014 in Lodi, Lombardy, Italy (near Milan). The upcoming European Championships was held from 27-28 August 2016 in Cambridge, England. The 2017 event was held in Turnhout, Belgium and 2018 in Delft, Netherlands. The 2019 event will be held in Helsinki, Finland. Icosathlon The icosathlon, also called the double decathlon, is an ultra multi-event of track and field competition consisting of 20 events contested over two days. There is an extra rule, that each day should contain
American Champion Decathlon produced and has made the aluminum-spar wings available for retrofit installation on older aircraft. Compared to the Citabria’s wingspan of , the Decathlon’s wingspan is shorter, at . One of the major developments of the 8KCAB Decathlon over the 7KCAB Citabria is the Decathlon’s wing, which employs a semi-symmetrical airfoil, as opposed to the Citabria’s flat-bottomed airfoil. This change gives the Decathlon better inverted flight and negative-g maneuver capabilities. The landing gear of the Decathlon is in a conventional arrangement. The main gear legs of most Decathlons are made of spring steel, though American Champion began to use aluminum gear