thumb|left|A Soko G-4 Super Galeb of the Serbian Air Force Another programme begun during the 1970s would result in the development of the G-4 Super Galeb; it was designed as a replacement for Yugoslav Air Force's existing inventory of G-2 Galebs. According to aviation periodical Flight International, the Super Galeb showed unmistakable lineage from the earlier G-2, sharing the same British-sourced Rolls-Royce Viper turbojet engine, albeit uprated for greater performance. However, aviation historian Christopher Chant notes that: "the Super Galeb bares no more relation to the G-2 Galeb than an identity of role, being an altogether more advanced aircraft.Chant 2014, p. 467. Beyond the domestic market, it also competed internationally against jet trainers such as the Italian Aermacchi MB-339, the Czechoslovakian Aero L-39 Albatros, and the Spanish CASA C-101; Flight International observes that, while the Super Galeb offered less performance that the Franco-German Dassault/Dornier Alpha Jet, it was substantially cheaper to procure."Jugoslavia develops new jet trainer." Flight International, 4 June 1983. p. 1647.
thumb|left|A Soko G-4 Super Galeb of the Serbian Air Force Another programme begun during the 1970s would result in the development of the G-4 Super Galeb; it was designed as a replacement for Yugoslav Air Force's existing inventory of G-2 Galebs. According to aviation periodical Flight International, the Super Galeb showed unmistakable lineage from the earlier G-2, sharing the same British-sourced Rolls-Royce Viper turbojet engine, albeit uprated for greater performance. However, aviation historian Christopher Chant notes that: "the Super Galeb bares no more relation to the G-2 Galeb than an identity of role, being an altogether more advanced aircraft.Chant 2014, p. 467. Beyond the domestic market, it also competed internationally against jet trainers such as the Italian Aermacchi MB-339, the Czechoslovakian Aero L-39 Albatros, and the Spanish CASA C-101; Flight International observes that, while the Super Galeb offered less performance that the Franco-German Dassault/Dornier Alpha Jet, it was substantially cheaper to procure."Jugoslavia develops new jet trainer." Flight International, 4 June 1983. p. 1647.