The Utva C-3 Trojka (Trey) was a light aircraft built in Yugoslavia shortly after World War II as a result of a government competition to develop a new, domestically built aircraft with which to equip the country's flying clubs. The winning design was submitted by Boris Cijan and Djordje T. Petković and the prototype was built by Ikarus as the Ikarus 251.
The Utva C-3 Trojka (Trey) was a light aircraft built in Yugoslavia shortly after World War II as a result of a government competition to develop a new, domestically built aircraft with which to equip the country's flying clubs. The winning design was submitted by Boris Cijan and Djordje T. Petković and the prototype was built by Ikarus as the Ikarus 251.
Source: Wikipedia "Utva Trojka" · CC BY-SA 4.0
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