111th Helicopter Regiment The 111th Helicopter Regiment ( " Serbo - Croatian : 111 . helikopterski puk / 82 . хеликоптерски пук " ) was a unit established in 1944 as the 422nd Assault Aviation Regiment ( " Serbo - Croatian : 422 . vazduhoplovni jurišni puk / 422 . ваздухопловни јуришни пук " ) . History . 422nd Assault Aviation Regiment . The regiment was established on December 4 , 1944 , in Novi Sad , from Yugoslav partisan aviators with the Soviet Air Force 17th Air Army ' s 166th Guards Assault Aviation Regiment ( 166 . GShAP ) . It became independent from Soviet command and personnel in May 1945 . The regiment was part of the 42nd Aviation Assault Division ; it was equipped with Soviet Il - 2 Shturmovik ground - attack aircraft . The regiment took part in final operations for the liberation of Yugoslavia . During combat operations , it was based at Novi Sad , Klenak , Mađarmečke and Pleso airfields . After the war , the regiment remained at Pleso . By 1948 , the regiment was renamed , like all other units of the Yugoslav Army , becoming the 111th Assault Aviation Regiment . The commanders of the regiment in this period were Krsta Lakićević , Hinko Šoić , Predavec and Milan Aćimović . 111th Assault and Fighter - Bomber Aviation Regiment . The 111th Assault Aviation Regiment remained at Pleso for a short time . By 1949 it had moved to Cerklje where it was to remain until it was disbanded . In 1954 the Il - 2s were replaced with US - built F - 47D Thunderbolt fighters . In that period , the unit was renamed the 111th Fighter - Bomber Aviation Regiment ( " Serbo - Croatian : 111 . lovačko - bombarderski avijacijski puk / 111 . ловачко - бомбардерски авијацијски пук " ) . The 111th Fighter - Bomber Aviation Regiment was disbanded in March 1961 . The commanders of the regiment in this period were Milan Aćimović , Miloš Milikić , Radoje Ljubičić , Matija Macut and Petar Orešćanin . Re - establishment of the 111th Regiment . The 111th Support Aviation Regiment was formed at Cerklje airport in April 1961 from the 679th Transport Aviation Squadron , which was equipped with Soviet - made Lisunov Li - 3 transport aircraft and the 894th Liaison Aviation Squadron which operated Yugoslav - made Ikarus Kurir liaison machines . The new 111th Regiment took the number and banner and continued the traditions of the former 111th Fighter - Bomber Aviation Regiment . The 780th Transport Helicopter Squadron , equipped with new Soviet Mil Mi - 4 helicopters , was transferred from the 107th to the 111th Regiment in 1964 . The out - moded Li - 3s were replaced with similar US C - 47 Skytrains in 1966 . By 1973 , the 780th Squadron had replaced their Mi - 4s with newer Mil Mi - 8T helicopters . In the same year one other squadron , the 781st , also with Mi - 8s , was moved from the 107th to the 111th Regiment . Meanwhile , in 1968 , the regiment moved from Cerklje to Pleso airport and the 894th Liaison Aviation Squadron was disbanded . New Antonov An - 26 cargo aircraft replaced the Skytrains in 1976 . The regiment was renamed the 111th Transport Aviation Regiment ( " Serbo - Croatian : 111 . vazduhoplovni transportni puk / 111 . ваздухопловни транспортни пук " ) in 1978 . In 1982 it had grown to an Aviation Brigade , with two more new helicopter squadrons , the 711th and 713th squadrons coming under command . They were equipped with domestic - made Soko Gazelle s . War period . The 111th Aviation Brigade was active from the first days of the war in Slovenia . One Mi - 8 was shot down by Slovenian Territorial Defence forces on the afternoon of 27 June 1991 , killing all three pilots . As the war in Croatia intensified , the brigade found itself located in hostile territory surrounded by Croatian forces , the High Command of the Yugoslav Air Force ordered the evacuation of its units to safer territory , so the 679th Transport Aviation Squadron moved to Batajnica Air Base and was reattached to the 138th Transport Aviation Brigade ; while three helicopter squadrons were re - located to Zalužani near Banja Luka . The 713th Anti - Armored Helicopter Squadron was absorbed by the 711th Anti - Armored Helicopter Squadron ; so the Air Brigade , consisting of just two squadrons , the 711st and the 780th , became the 111th Helicopter Regiment on 12 October 1991 . The regiment operated in an important role during the early war in Croatia and Bosnia and Herzegovina , being used for the transport of troops , ammunition , the evacuation of civilians , CSAR and MEDEVAC missions . The regiment was withdrawn from the Order of Battle of the Yugoslav People ' s Army to become part of the newly formed Republika Srpska Air Force on 12 May 1992 ; it was to be based at Kraljevo - Lađevci Airport . On 26 July 1992 , just two months after the initial structure of the Bosnian Serb Air Force was established , the flying units were once again reorganized . The 111th Helicopter Regiment was disbanded , and a new unit designated the 92nd Mixed Aviation Brigade was formed to control both fixed - wing and helicopter squadrons . Later in the same year , the 711th Anti - Armored Helicopter Squadron and the 780th Transport Helicopter Squadrons were merged to create the new unit designated the 89th Mixed Helicopter Squadron . The commanders of the regiment following its re - establishment were : Stanislav Verbić , Drago Mikulandra , Marko Mrvac , Vukadin Živanović , Milorad Božić , Vilko Voljevac , Joviša Andrić , Alojz Hršak , Stefanović , Andrija Veselinović and Srećko Prentović .