A GUERRILLA BIRD
All metal, single-seat, lightweight aircraft equipped for full instrument flying, was developed for many military roles and were capable to carry the required ordnance to a target with minimum cost. Its simple design enabled armed take-offs and landings on short runways and low-altitude operations in the immediate vicinity of battlefields.
PARTISAN PLANE
Transferring from a sports plane to this light single-seater was easy. This agile, attack aircraft was intended for reserve pilots. It could also take off in deep snow, equipped with skis. It flew night and day and was also used to bomb targets.
PRACTICAL OLDTIMER
It can also be used for light transport roles both in the army and civil services. A useful load of about 500kg is available for such purposes. The aircraft can also be used for towing gliders, first aid needs, and as an aid to agriculture.
LIGHT. FAST. DARING.
The Kraguj has been under development for several years of extensive design, testing, and production. The development of this aircraft was carried out in collaboration between the Yugoslav Aeronautical Research Establishments and Yugoslav Aircraft Industry.
The Kraguj prototype was first tested on November 21, 1962, by Captain Rudolf Humar.
It was a reconnaissance aircraft used for direct support of land units. The plane proved itself, so they soon produced two smaller series of these planes.
KRAGUJ IN SLOVENIA
In 1973, a Territorial Defence (TO) training squadron was established at the airport in Cerklje, later transferred to Brnik, operationally subordinated to the Yugoslav People’s Army (JLA). The pilots (reservists) of the squadron were trained for both, day and night operations. After a four-year interruption of the program, the squadron was re-equipped in 1988 with Kraguj aircraft, which then JLA materially and logistically handed over to the Territorial Defence(TO), and this time it was subordinated to the Republic Headquarters of the TO.
Although they are no longer “in the center of action”, today some still fly both in Serbia and abroad as “old-timers”. If the route takes you past the Aviation Museum in Belgrade, you can also see them there.
Want to hear how Kraguj sounds? Check it out 
Sources:
-Soko Kraguj brochure; Soko Mostar; štampa IP Veselin Maslesa, Sarejevo
-Opis i održavanje aviona J-20; 1968
-Upravljanje avionon J-20; 1984
–http://www.zvvs.si
