-4x KPT-150 [34 x RAB-3.5 3.5kg HE Bomblets]
-2x 275 Liter Wingtip Tank
-4x KPT-150 [44 x RAB-2.5 2.5kg HE Bomblets]
-2x 275 Liter Wingtip Tank
-4x KPT-150 [54 x PTAB-1.5 HC AT Bomblets]
-2x 275 Liter Wingtip Tank
-4x FAB-100 M80
-2x 275 Liter Wingtip Tank
-4x RAB-120 Frag
-2x 275 Liter Wingtip Tank
-4x PLAB-150 Incendiary Bomb
-2x 275 Liter Wingtip Tank
Comms/Datalinks
UHF/VHF Radio [Unsecure]
Aircraft Codes
Night Navigation (Ferry, Air-to-Air, Air-to-Surface Missiles), Bombsight - Ballistic Computing
Comments
The recon variant of the J-21 has a recon frame camera that was built into the fuselage and one frame camera inside each wingtip tank. These wouldn't ever be jettisoned because of the expensive equipment. Instead of 2 hardpoints which can carry 250kg each + 6 HVAR hardpoints, the recon variant has 4 hardpoints which can carry 150kg each. Some of the IJ-21 could also launch PRM-200 target missiles with programmable flightpaths.
A total of 103 J-21 aircraft were produced for the JRV and PVO. In addition, the reconnaissance squadrons received 38 aircraft of the reconnaissance version IJ-21, which, unlike the basic version, was equipped with aerial cameras in the fuselage and wing tip-tanks. 14 combat two-seater NJ-21s were also produced for combat training.
The recon Jastreb is most easily recognized by the fact that it does not have small HVAR-5 missile pylons, but that is why there are two full sized pylons on each wing. Another, less conspicuous detail of the recon version is the cameras in the lower part of the fuselage, just behind the cabin between the air intakes.
nuk92
commented
2 years ago 
DB Selector
Both
Baseline
1654
Hypothetical
No
Name
IJ-21 Jastreb
Country
Yugoslavia, Serbia (DB3000)
Service
Air Force
In Commission
1966-1992, 1992-1995
Number in Service
36
Length (m)
10.7
Wingspan (m)
11.7
Height (m)
3.6
Empty Weight (kg)
2815
Maximum Takeoff Weight (MTOW) (kg)
5100
Payload Weight (kg)
800
Crew
1
Propulsion
1x Viper Mk.531
Rate of Climb (ft/min)
4130
Service Ceiling (ft)
39000
Military/Afterburner Speed (kt)
440 (at 6200m)
Cruise Speed (kt)
400 (at 6200m)
Supercruise
No
Ferry Range (nm)
820
Endurance (min)
150
Takeoff / Landing Distance (m)
No response
Fuel Capacity (kg)
780
Sensors
1x MK-1 Eyeball 3x AFA-39 Frame Camera 1x K-14 Gyroscopic Gunsight (only CWDB I think)
Mounts
1x 12.7mm/50 M3 x 3 [405 rnds] POJR-L/D [56 Cartridges]: 4x Generic Chaff Salvo [4x Cartridges], 10x Generic Flare Salvo [4x Cartridges, Single Spectral] (DB3000 only)
Loadout Options
-2x 275 Liter Wingtip Tank (unarmed recon loadout)
-2x PRM-200 (only DB3000) -2x 275 Liter Wingtip Tank
-48x BR-1-57 57mm Rocket -2x 275 Liter Wingtip Tank
-48x BR-2-57 57mm Rocket -2x 275 Liter Wingtip Tank
-32x BR-20-57 57mm Rocket [HEAT+FRAG] (only DB3000) -2x 275 Liter Wingtip Tank
-4x KPT-150 [34 x RAB-3.5 3.5kg HE Bomblets] -2x 275 Liter Wingtip Tank
-4x KPT-150 [44 x RAB-2.5 2.5kg HE Bomblets] -2x 275 Liter Wingtip Tank
-4x KPT-150 [54 x PTAB-1.5 HC AT Bomblets] -2x 275 Liter Wingtip Tank
-4x FAB-100 M80 -2x 275 Liter Wingtip Tank
-4x RAB-120 Frag -2x 275 Liter Wingtip Tank
-4x PLAB-150 Incendiary Bomb -2x 275 Liter Wingtip Tank
Comms/Datalinks
UHF/VHF Radio [Unsecure]
Aircraft Codes
Night Navigation (Ferry, Air-to-Air, Air-to-Surface Missiles), Bombsight - Ballistic Computing
Comments
The recon variant of the J-21 has a recon frame camera that was built into the fuselage and one frame camera inside each wingtip tank. These wouldn't ever be jettisoned because of the expensive equipment. Instead of 2 hardpoints which can carry 250kg each + 6 HVAR hardpoints, the recon variant has 4 hardpoints which can carry 150kg each. Some of the IJ-21 could also launch PRM-200 target missiles with programmable flightpaths.
Sources
first post: http://www.paluba.info/smf/index.php?topic=12037.msg88385;topicseen#msg88385
post by Luka: https://www.mycity-military.com/Avioni/G-2-Galeb-J-21-Jastreb_195.html
https://www.mycity-military.com/imgs4/151117_542321836_24456_jastreb.jpg https://www.mycity-military.com/imgs4/151117_70737631_ij21ba5.jpeg https://www.mycity-military.com/imgs4/151117_67841692_IJ-21%20kamera.jpg
https://www.mycity-military.com/imgs2/128765_55805886_j21-06.jpg https://www.mycity-military.com/imgs4/151117_60668244_24257.jpg