"Síbl", or trophy aircraft of German origin Siebel Si 204 and its Czechoslovak the unlicensed copy of the Aero C-3 undoubtedly belongs to the legendary aircraft of the post-war era of the Czech Republic. air force. In terms of numbers, it was among the few most numerous and most widespread types, and thus its role was no less significant compared to the other originally German types, "mules", "arads" and "bikras". In addition, its use included a relatively wide range of different tasks both in air transport and in training, aerial photography and photogrammetry and finally from the end of 1951 in the process of building the entire bombing division. In this case, his role was rather symbolic in terms of combat value, but even so, thanks to him, the personnel of the division could be prepared to the extent that in a few years he was able to 1955 begin transition to Ilyushin Il-28 jet bombers.