The UTVA 66 is a single-engine four-seat STOL capable utility aircraft produced by the Yugoslav manufacturer UTVA. The Utva 65 was originally an agricultural aircraft, developed as the U66 to serve various utility roles and including the armed U66V version. The UTVA-66 first flew in 1965. The UTVA-66 was a development of the basic four-seat UTVA-60-AT1. It could be used for glider towing. The UTVA-66-AM was an ambulance version. The UTVA-66-H was a twin float version similar to the standard UTVA-66 but with the optional auxiliary fuel tanks fitted as standard.