model. G-4M: Upgraded avionics and hardpoints, missile rail added to wingtips. Avionics include a Zrak ENP-MG4 HUD incorporating a Rudi Cajavec ENS-MG4 electronic sight, a gyro platform, multi function displays, and an optional chaff/flare dispensers. The inner hardpoints are rated at 500 kg, while the outer ones are rated at 350 kg, giving a maximum disposable load of 1,800 kg. Normal takeoff weight is 4,971 kg as a trainer, with a maximum takeoff weight of 6,400 kg in the attacker configuration, the maximum speed in "clean" configuration is 865 km/h at 10,000 m and 900 km/h at 4,000 m, with a ferry range of 2,900 km with drop tanks; range of 1,800 km with standard fuel, reduced to 1,200 km with cannon pack, four BL755 cluster bombs and two AAMs, maximum rate of climb at sea level of 1,800 m per minute, and a service ceiling of 12,500 m. G-4MD: Further development of G-4M upgrade including: LCD flight screens, HOTAS, HUD, integrated mission computers, distance measuring equipment, GPS-based navigation systems, identification friend or foe, navcomm units, mission records, and VHF omni-range and instrument landing systems. Integration of guided weapons, countermeasures and targeting systems is also scheduled as part of the upgrade. Operators : Serbian Air Force operates 20 G-4 aircraft as of 2022 : Air Force operates three G-4 aircraft as of 2022 Former operators : Air Force inherited 1 G-4 aircraft from Republika Srpska. At one point, Bosnia was considering its sale to neighbouring Serbia. : Air Force Inherited 17 aircraft. Four of these were used, but have subsequently been put up for sale. By 2012, six aircraft were transferred to Serbia whilst seven were reportedly sold to a private operator. : Air Force operated 77 G-4 aircraft. Aircraft on display Serbia Museum of Aviation (Belgrade) in Belgrade – four Soko G-4 Super Galeb on display Specifications (G-4M) See also References Citations Bibliography Chant, Christopher. A Compendium of Armaments and Military Hardware. Routledge, 2014. . External links Aerosvet Magazine; (Entry from the International Directory of Design) G-4 Super Galeb No.23405 G-004 Super Galeb 1970s Yugoslav attack aircraft 1970s Yugoslav military trainer aircraft Military Technical Institute Belgrade Single-engined jet aircraft Low-wing aircraft Aircraft first flown in 1978