Germany organized the contest, because the German pilot Fritz Morzik won the previous contest in 1929. The regulation based upon the FAI rules, but details were worked out by the German Aero Club. The international Sports Committee was headed by the German Gerd von Hoeppner. 98 crews applied, but eventually 60 aircraft entered the Challenge in 1930, from six countries: Germany (30 crews), Poland (12 crews), United Kingdom (7 crews), France (6 crews), Spain (3 crews) and the Swiss (2 crews). In the British team there was one Canadian, and in the French team – one Belgian. It was the first major international event in which the Polish aviation took part, with second most numerous team in addition, equipped with own design aircraft. This time, Italy nor Czechoslovakia did not participate.