Soko J-1 Jastreb
The Galeb was complemented by a generally similar but higher performance single-seat light attack/tactical reconnaissance version designated J-1 Jastreb (Hawk), which had a strengthened airframe and was powered by the improved Rolls-Royce Viper 531 turbojet. This was built as the J-1 attack and RJ-1 tactical reconnaissance aircraft for the Yugoslav air force, with corresponding J-1E and RJ-1 E versions for export. For operational conversion a two-seat TJ-1 was developed.
Production of all versions of the Jastreb ended during 1978.
Engine: 1 x Rolls-Royce "Viper" 531, 1361kg
Max take-off weight: 5100 kg / 11244 lb
Loaded weight: 2820 kg / 6217 lb
Wingspan: 11.68 m / 38 ft 4 in
Length: 10.88 m / 36 ft 8 in
Height: 3.64 m / 12 ft 11 in
Wing area: 19.43 sq.m / 209.14 sq ft
Max. speed: 820 km/h / 510 mph
Ceiling: 12000 m / 39350 ft
Range w/max.fuel: 1520 km / 945 miles
Armament: 3 x 12.7mm machine-guns
Hard points: 8
SOKO J-1 Jastreb