IAF's Air Defence Systems

[125mm_Smoothbore]

SYSTEMS

• S-125 GOA
• 9k33 OSA
• AKASH
• SAMAR
• SPYDER
• MRSAM
• S-400
• MANPADS (IGLA+IGLA-S)

S-125 'GOA'

S-125 systems were bought by IAF for close range air defence of military air bases

Specifications :

Missile -


RANGE/SERVICE CEILING = 35km/18km
MASS= 950kg
Warhead= 60kg high-explosive Fragmentation warhead

Radar -

1. P-15 radar

​

The P-15 was designed to detect aircraft flying at low altitude

Frequency	UHF
Range	150 km
Altitude	3 km
Diameter	11 meters
Azimuth	360 degrees
Elevation	2-14 degrees
Precision	0.3 km range
Power	270 kW

2. SNR-125 radar [Fire control radar]

The SNR-125 has one small UV-10 transmitter-receiver antenna, flanked by two larger UV-11 receiver antennas mounted orthogonally. The UV-12 antenna mounted on top is for transmitting commands to the missile.
250 kW I/D-band tracking, fire control and guidance radar (range 40 km/25 miles, second mode 80 km/50 miles) Its parts: An UV-10, 3 cm wavelength, narrow beam transmitter/receiver antenna; 2 pcs of UV-11, 3 cm wavelength, wide beam receiver antenna for target tracking,an UV-12, decimeter wavelength, missile command transmitter antenna and a 9Sh33A camera (optical channel).

 

[125mm_Smoothbore]

9K33 OSA
The Osa was the first mobile air defense missile system incorporating its own engagement radars on a single vehicle.
The six-wheeled transport vehicles BAZ-5937 are fully amphibious and air transportable. The road range is about 500 km.

Specifications :

Missiles -


Mass/warhead= 170kg/16kg
Range = 15km
Service ceiling = 12km
Kill probability = 0.55-0.85 (55%-85%)

Radar -

• 1S51M3 ("Land Roll") – C band target acquisition radar, H band conical scan target tracking radar and two J band pulse mode fire control radars (range 35 km/22 mi for acquisition, 30 km/19 mi for tracking and 25 km/16 mi for guidance). Mounted on the TELAR.

• P-40 ("Long Track") – E band early warning radar (also used by 2K11 Krug and 2K12 Kub, range 175 km/108 mi), mounted on a tracked vehicle (a modified AT-T).

• P-15 ("Flat Face A") or P-19 ("Flat Face B") or P-15M(2) ("Squat Eye") – 380 kW C band target acquisition radar (also used by the S-125 Neva/Pechora and 2K12 Kub, range 250 km/155 mi), mounted on a ZiL-131 truck.

• PRV-9 or PRV-16 ("Thin Skin") – E band height finding radar (also used by 2K11 Krug and 2K12 Kub, range 240 km/148 mi), mounted on a KrAZ-255B truck.

Vehicle specifications

Mass	17.5 tonnes
Length	9.14 m (30 ft 0 in)
Width	2.75 m (9 ft 0 in)
Height	4.20 m (13 ft 9 in) (radar mast stowed)
Crew	5 soldiers

Ground clearance	400 mm (16 in)
Operational range	500 km (311 mi)
Maximum speed	80 km/h (50 mph) 8 km/h (5.0 mph) (swimming)

 

[125mm_Smoothbore]

AKASH AIR DEFENCE
Development ( listed points is from book 'WINGS OF FIRE' )

• Under the leadership of Prof. IG Sharma we developed air defence software for multi-target acquisition.
• Prof. Bharati Bhatt of IIT Delhi, working with the Solid Physics Laboratory (SPL) and Central Electronics Limited(CEL), broke the monopoly of the western countries by developing ferrite phase shifters for use in the multifunction, multi-tasking 3-D Phased Army Radar for surveillence, tracking and guidance of Akash

AKASH, developed as a part of Integrated Guided Missile Development Programme (IGMDP) initiated by India in 1983, is an all weather medium range surface to air missile system having a multi- directional, multi target area defence capability. The weapon can simultaneously engage several air targets in a fully autonomous mode of operations.

Defence Research and Development Organisation (DRDO) has fully realized and integrated Mark-I Version of Akash Weapon system. DRDL, Hyderabad has been responsible for system integration and missile development, LRDE Banglaore for radar development , R&DE Pune for launcher,CVRDE for Tracked Vehicles, ARDE for Warhead, and HEMRL for Propellants. Extensive tests of the Weapon system have proved the consistency of various sub systems of the flight and ground elements thereby confirming accuracy, robustness and reliability.

The flight and ground elements of the weapon system are integrated in a plug and fight architecture. The hardware and software integration of various weapon system elements permits autonomous management of air defence functions such as programmable surveillance, target detection, target acquisition, tracking, identification, threat evaluation, prioritization, assignment and engagement. The weapon system can simultaneously engage multiple air targets in a fully autonomous mode of operation.Command and control nodes, communication links, self propelled launchers and sensors are integrated to achieve these functionalities. The system is designed to enable integration with other air defence command and control networks through secure communication links. The system is also provided with advanced ECCM Features at various levels. The weapon system is cost effective relative to equivalent systems in the market. The weapon system has cross – country mobility and has air, road and rail deployability.

The first trial firings occurred in 1990, with the 10th test in September 1998. As of August 2006, the Akash system has been tested 16 times since January 2005, including two crossing targets taken with live warheads. Akash has multiple-targeting handling capacity, with digitally coded command guidance. Demonstration of simultaneous target intercept capability against two live aerial targets was successfully conducted in Nov 2005

SPECIFICATIONS :

Missile -

Range/service ceiling - 25-30km/20km
warhead- 60kg high explosive fragmentation
seeker- radio proximity seeker
guidance- command guidance with data links
Launch platforms - T-72 chassis ,BMP-2 chassis [Prototype] and Tata trucks [Production]



RADARS -

3D Central Acquisition Radar (3D CAR )

The Akash Group comprises a set of surveillance radars, one at the Group HQ and the other as part of the Battery. The tracking –cum-guidance radar is only at the Battery level.

3D Central Acquisition Radar (3D CAR ) is a long-range surveillance sensor interfaced with the GCC. It provides azimuth, range and height of targets. It is capable of detecting ,tracking and processing more than 200 tracks

Battery Surveillance Radar (BSR)

The Battery Surveillance Radar (BSR) is a track vehicle based, long range sensor, interfaced with the BCC. It can detect and track upto 40 targets in range and azimuth.

Battery Level Radar (BLR)

The Battery Level Radar (BLR) is a phased array, multi-function sensor interfaced with the BCC. It acquires and tracks upto 20 targets in range, azimuth and height. Slewable and mobile, the BLR also tracks and guides upto eight missiles simultaneously towards the targets assigned by the BCC

 

[125mm_Smoothbore]

Akash

Akash album hosted in ImgBB

ibb.co

akash air defence album

 

[125mm_Smoothbore]

Akash seeker


akash missile cutaway


Rajendra radar dish

Rocket motor hardware casings of Akash Missile [akash 1S]


rajendra radar carrier

 

[Abhijeet]

Does anyone have latest status on DRDO's Project Kusha?

Project Kusha - Wikipedia

en.wikipedia.org

 

[Fatalis]

Does anyone have latest status on DRDO's Project Kusha?

Project Kusha - Wikipedia

en.wikipedia.org

M1 missile is under fabrication.

 

[SwordOfDarkness]

Akash seeker
View attachment 1053

akash missile cutaway
View attachment 1054

Rajendra radar dish
View attachment 1055
Rocket motor hardware casings of Akash Missile [akash 1S]
View attachment 1056

rajendra radar carrier
View attachment 1060

View attachment 1061

View attachment 1062

Hmmm. Thanks for the pics, had never seen these. To me, Akash looks like a reverse engineered/improved kub. For example, its propulsion and even its seeker looks like reverse engineered Kub seeker. I hope they have improved it by now, from the analogue systems it used to work on.

Kub seeker:


View: https://www.youtube.com/shorts/89-HcFtpycs

 

[Fatalis]

With the development of PGLRSAM, now we are having our own Iron Steel system similar to Turkish one.

1. 150 to 400 km = PGLRSAM + S-400
2. 70 to 80 km = Akash-NG and MRSAM
3. 25 to 30 km = Akash-P + VL-SRSAM*
4. 05 to 08 km = VSHORADS
5. Less than 4 km = Sudarshan CIWS

* = Not sure if it will be inducted by the IAF

 

[Blademaster]

With the development of PGLRSAM, now we are having our own Iron Steel system similar to Turkish one.

1. 150 to 400 km = PGLRSAM + S-400
2. 70 to 80 km = Akash-NG and MRSAM
3. 25 to 30 km = Akash-P + VL-SRSAM*
4. 05 to 08 km = VSHORADS
5. Less than 4 km = Sudarshan CIWS

* = Not sure if it will be inducted by the IAF

There is a gap between 80 km and 150 km and a gap between 30 km to 70 km.

 

[Hawkeye]

Hmmm. Thanks for the pics, had never seen these. To me, Akash looks like a reverse engineered/improved kub. For example, its propulsion and even its seeker looks like reverse engineered Kub seeker. I hope they have improved it by now, from the analogue systems it used to work on.

Kub seeker:


View: https://www.youtube.com/shorts/89-HcFtpycs

Isn't KUB a SARH guided system and Akash a command guided system?

 

[Fatalis]

There is a gap between 80 km and 150 km and a gap between 30 km to 70 km.

Bhai the one which targets 150km can also target 100km.

 

[SwordOfDarkness]

Isn't KUB a SARH guided system and Akash a command guided system?

The seeker pictures seems like a radar, no idea if sarh or arh