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Combat aircraftIn service
Light attack aircraft
Soko J-21 Jastreb is a light attack aircraft. It was built by SOKO. Reported operators include Yugoslav Air Force.
Technical data
True scale
Sourced dimensions beside a 1.75 m human reference.
Visual reference
Light attack aircraft
SOKO
Aeronautical Technical Institute (ATI)
Retired from Republika Srpska Air Force (2006)
Yugoslav Air Force
224
1968–1977
19 July 1965
Soko G-2 Galeb
1
10.88 m (35 ft 8 in)
10.56 m (34 ft 8 in)
3.64 m (11 ft 11 in)
19.43 m 2 (209.1 sq ft)
5,100 kg (11,244 lb)
440 kg (970 lb) internal fuel + 435 kg (959 lb) in 2x 275 L (60 imp gal; 73 US gal) jettisonable wing-tip fuel tanks.
1 × BMB (Rolls-Royce/Bristol Siddeley) Viper Mk 531 turbojet engine, 13.32 kN (2,990 lbf) thrust
820 km/h (510 mph, 440 kn)
740 km/h (460 mph, 400 kn) at 5,000 m (16,000 ft)
1.520 km (0.944 mi, 0.821 nmi) with tip tanks
12,000 m (39,000 ft)
+8 -4
21 m/s (4,100 ft/min)
3 × 12.7 mm (0.5 in) Browning AN/M3 machine guns
8 with a capacity of inboard pylons (2 of) 250 kg (550 lb), outboard pylons (6 of) 50 kg (110 lb), with provisions to carry combinations of:
6 × VRZ-157 127 mm (5.00 in) rockets
Compared to the Galeb, the Jastreb has a strengthened structure, allowing more weapons to be carried, including three 12.7 mm (0.5 in) Browning AN/M3 machine guns, mounted in the nose of the aircraft. Also, the Jastreb is able to carry up to 800 kg (1,800 lb) on under-wing pylons, two inner pylons having a capacity of 250 kg (550 lb) for bombs, rocket launchers, and additional tanks, while the six outer pylons can carry VRZ-157 127 mm (5.00 in) rockets.
The first Yugoslav Air Force attack on Croatian troops took place on July 9, 1991 near Ilok, when two J-21 Jastreb attacked the base of the 1st Brigade of the Croatian National Guard . On August 24, 1991, during the Battle of Vukovar a member of the Croatian National Guard shot down one Yugoslav Air Force J-21 and damaged another aircraft with M55 anti-aircraft gun. On 15 November 1991, during the Battle of the Dalmatian Channels , three Yugoslav Air Force J-21 Jastrebs flew low over Brač and Šolta; minutes later, two were reportedly shot down by Croatian M55 anti-aircraft gun and Strela 2M. On 7 August 1995, during Operation Storm near Dvor na Una, members of the Air Defence Battalion of the 2nd Guards Brigade shot down a J-21 Jastreb over Bosanski Novi.
Length: 10.88 m (35 ft 8 in)
Wingspan: 10.56 m (34 ft 8 in)
Height: 3.64 m (11 ft 11 in)
Wing area: 19.43 m 2 (209.1 sq ft)
Max takeoff weight: 5,100 kg (11,244 lb)
Fuel capacity: 440 kg (970 lb) internal fuel + 435 kg (959 lb) in 2x 275 L (60 imp gal; 73 US gal) jettisonable wing-tip fuel tanks.
Powerplant: 1 × BMB (Rolls-Royce/Bristol Siddeley) Viper Mk 531 turbojet engine, 13.32 kN (2,990 lbf) thrust
Powerplant: 2 × JATO units solid-fuelled rockets, 4.45 kN (1,000 lbf) thrust each
Maximum speed: 820 km/h (510 mph, 440 kn)
Cruise speed: 740 km/h (460 mph, 400 kn) at 5,000 m (16,000 ft)
Range: 1.520 km (0.944 mi, 0.821 nmi) with tip tanks
Service ceiling: 12,000 m (39,000 ft)
Rate of climb: 21 m/s (4,100 ft/min)
Guns: 3 × 12.7 mm (0.5 in) Browning AN/M3 machine guns
Hardpoints: 8 with a capacity of inboard pylons (2 of) 250 kg (550 lb), outboard pylons (6 of) 50 kg (110 lb), with provisions to carry combinations of: Other:
2 × rocket pods each with 12x 55 mm (2.17 in) rockets
Rockets: 6 × VRZ-157 127 mm (5.00 in) rockets
2 × 250 kg (550 lb) general-purpose bombs or
2 × 150 kg (330 lb) cluster bombs or
2 × 120 kg (260 lb) cluster fragmentation bombs
The Soko J-21 Jastreb (from Serbian Cyrillic : јастреб , lit. ' hawk ' ), referred to as the J-1 Jastreb in some sources, is a Yugoslav single-seat, single-engined, light attack aircraft , designed by the Aeronautical Technical Institute (ATI) and Military Technical Institute (VTI), in Belgrade , and manufactured by SOKO in Mostar .
Масса пустого: 2820 кг
Soko J-21 Jastreb Yugoslavia Attack 1 Serviceability doubtful.
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Soko J-21 Jastreb
Srđan Popović · CC BY-SA 4.0 · Resized / WebP conversion · CC BY-SA 4.0 · Source ↗ · ModifiedSoko J-21 Jastreb equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Bosnia and HerzegovinaStored Air Force and Air Defence Brigade exact named equipment holdings: J-1 (J-21) Jastreb. Explicit source inventory scope: stored; independently counted whole stock in store. November 2025 IISS assessment. Named service only; no operational holding, readiness or parent-force total inferred. Source role: AIRCRAFT / ATK. Original estimates, ranges, reporting names and exact storage declarations retained. Stored quantities earn no operational index points.
LibyaAir Force exact named equipment holdings: J-21 Jastreb†. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: AIRCRAFT / ATK. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
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