At the time, seaplanes of domestic constructors for the purposes of Yugoslav navy air force were manufactured at the Novi Sad-based Ikarus factory.
The Ikarus factory engaged engineers Rudolf Fizir and Josef Mickl who had long and vast experience in building aircraft.
The Yugoslav aviation industry between two world wars was a sort of a seminary of superb experts in all profiles and specializations.
In the post war period, professor Dušan Stankov continued working on construction of aircraft, so as early as 1946 he participated in a competition opened by the Air Force Command.
As early as 1934, engineer Dušan Stankov began teaching at the Faculty of Technology, Belgrade University, as associate reader.