It was a conventional single-bay biplane with staggered wings of unequal span braced by N-struts.

The SET XV was developed to compete for a Romanian Air Force contract for a new fighter.

However, before evaluation had even seriously begun, the Polish PZL P.11 was already selected as the winner amidst various claims of impropriety.

The sole SET XV prototype was purchased by Ministerul Armatei and assigned to aerobatic training.

[1] Data from Jane's all the World's Aircraft 1937,[2] Romanian Aeronautical Constructions 1905–1974[3]General characteristics Performance Armament Avionics 2-way radio