The SET 3 was a military trainer aircraft developed in Romania in the late 1920s. It was a conventional single-bay biplane with unstaggered wings of equal span. It was equipped with fixed tailskid undercarriage and the pilot and instructor sat in tandem open cockpits. The design was submitted to the Romanian Air Force for consideration and elicited sufficient interest to result in an order for two prototypes to be placed.
Made by Societatea Pentru Exploatări Tehnice.