prototype, were designated G-4 PPP; they possessed fixed tailplanes with inset elevators and no anhedral. Unlike the G-2 Galeb, both the wing and tail surfaces are swept on the Super Galeb, while avionics to enable flight even under adverse weather conditions and at night have been integrated. In contrast to the development aircraft, production Super Galebs, along with the second prototype, were designated G-4; in terms of design, they differed by featured an all-moving anhedral tailplane as well as being equipped with comprehensive avionics improvements. Production aircraft use a gravity-based refuelling system, while the earlier development aircraft had been furnished with a pressurised refuelling system; this was slightly slower to refuel but was both simpler and cheaper. In addition to its training mission, the G-4 was also suited for light attack operations. During 1983, the G-4 made its first flight, by which point it had been ordered in large numbers for the Yugoslav Air Force. 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 G-4 offered less performance than the Franco-German Dassault/Dornier Alpha Jet, it was substantially cheaper to procure. Design The SOKO G-4 Super Galeb is a jet trainer and light attack aircraft. Its size allows the type to be applied to both basic and advanced flight syllabuses. Aesthetically, the Super Galeb resembles the Hawker Siddeley Hawk, a contemporary British jet trainer. In terms of the G-4's basic configuration, it is a low wing monoplane design with slightly tapered wings. The aircraft is long and high, with a wingspan of . It weighs when empty and can carry of fuel. The aircraft is fitted with a short nose cone, rounded fuselage, conventional empennage, semi-circular air intakes, vertical tailfin, rudder, ailerons, horizontal stabilisers and fuel tanks at the square tips. The two crew, typically student and instructor, are seated in a tandem configuration under individual side-opening canopies. Both positions are provided with Martin-Baker-sourced ejection seats; the rear seat is slightly elevated to render better all-round visibility and aid in the supervision of a student pilot sitting in the front. The crew are provided with avionics that enable poor-weather flying; the forward position is provided with a radio altimeter and gyro-gunsight. For combat missions, the Super Galeb can be outfitted with a centreline-mounted gun pod containing a