Nirbhay (lit. 'Fearless') is a long range, all-weather, subsonic Cruise Missile designed and developed in India by the Aeronautical Development Establishment (ADE) which is under Defence Research and Development Organisation (DRDO).[13][14] The missile can be Launched from Multiple Platforms and is capable of carrying conventional and nuclear warheads. It is currently deployed in limited numbers in Line of Actual Control (LAC) during standoff with China.[15]
Nirbhay | |
---|---|
![]() Nirbhay cruise missile launched on 15 April 2019 | |
Type | Long-range, all-weather, subsonic cruise missile[1][2] Surface-to-surface missile |
Place of origin | India |
Service history | |
In service | Limited deployment |
Used by | Strategic Forces Command Indian Army Indian Air Force Indian Navy |
Production history | |
Designer | Aeronautical Development Establishment (DRDO) |
Manufacturer | Bharat Dynamics Limited |
Variants | ITCM SLCM LR-LACM |
Specifications | |
Mass | 1,500 kilograms (3,300 lb)[3] |
Length | 6 m (20 ft) |
Diameter | 0.52 m (1.7 ft) |
Wingspan | 2.7 m (8.9 ft) |
Warhead | Conventional (PCB, blast fragmentation)[4][5] or Nuclear |
Warhead weight | 200-300 kg |
Engine | First stage: Solid rocket booster Second stage: |
Propellant | First stage: Solid fuel Second stage: Liquid fuel |
Operational range | up to 1,500 km (930 mi)[8] |
Flight altitude | 50 m (160 ft) to 4 km (13,000 ft)[9] |
Maximum speed | 0.9 Mach[10][11] |
Guidance system | Mid-course: Ring laser gyro inertial navigation system and MEMS gyroscope. Augmented by GPS/NavIC satellite guidance Terminal: Active radar homing, electro-optical, imaging infrared[12][4] |
Launch platform | Land-based mobile launcher |
Transport | Tata LPTA 5252-12 X12 High Mobility Vehicle |
Design
editNirbhay is powered by a solid rocket booster for take off which is developed by Advanced Systems Laboratory (ASL). Upon reaching the required velocity and height, a turbofan engine in the missile takes over for further propulsion. The missile is guided by an inertial navigation system developed by Research Centre Imarat (RCI) and a radio altimeter for the height determination.[16][17] The missile has a ring laser gyroscope (RLG) based guidance, control and navigation system. It also has a microelectromechanical system (MEMS) based inertial navigation system (INS) along with the GPS/NavIC system.[18] The missile has a length of 6 metres, width of 0.52 metres, a wing span of 2.7 metres and weighs about 1500 kg. It has a range of about 1500 km and is capable of delivering 24 different types of warheads depending on mission requirements between 200 and 300 kg.[10][19][20]
The missile is claimed to have sea-skimming and loitering capability, i.e., it can go round a target and perform several maneuvers and then re-engage it. It is also able to pick out a target and attack it among multiple targets.[21] With two side wings, the missile is capable of flying at different altitudes ranging from 50 m to 4 km above the ground and can also fly at low altitudes (like low tree level) to avoid detection by enemy radar.[22][23] It will eventually supplement the role played by BrahMos missile for the Indian Armed Forces by delivering warheads farther than the 450 km range.[24]
After the design was finalized, the technology required for the missile was developed. It was integrated by Research and Development Establishment (Engineers), a specialized arm of DRDO.[23] Tata Motors has built the vehicle that is the carrier/launcher for the Nirbhay system and is based on a "high mobility, all-terrain and all-wheel drive Tata LPTA 5252-12×12 vehicle", developed in partnership with DRDO.[25]
Further Development
editDRDO announced the completion of Nirbhay cruise missile development project on 6 February 2023 after completing six developmental trials. The next phase of tests will happen from April 2020 under the Indigenous Technology Cruise Missile (ITCM) programme. It will include Small Turbo Fan Engine (STFE) developed by Gas Turbine Research Establishment (GTRE) and a radio-frequency (RF) seeker from Research Centre Imarat (RCI). A separate air-launched variant and submarine-launched variant is under active development.[26][27][28]
Variants
editBase variant
editThe standard Nirbhay subsonic cruise missile is powered by a Russian NPO Saturn 36MT engine.
Indigenous Technology Cruise Missile (ITCM)
editThe Indigenous Technology Cruise Missile (ITCM) is based on Nirbhay missile but uses locally developed Small Turbo Fan Engine[broken anchor] (STFE), also known as Manik Engine from Gas Turbine Research Establishment. The ITCM is a technology demonstrator programme to validate the capability of STFE, upgraded radio frequency (RF) seekers, and other subsystems. The main objective of this programme to achieve 100% indigenous contents in the cruise missile[29]
Long Range-Land Attack Cruise Missile (LR-LACM)
editThe LR-LACM, a longer range variant, will have a range up to 1,500 km. This missile would be operated by both the Indian Navy and Indian Air Force when development is complete. This missile would be compatible with the Universal Vertical Launch Module (UVLM) cells used for BrahMos.[30][31] It will weigh a tonne, have a length of 6 m and diameter of 0.52 m. The missile is designed to have two tapering-chord fold-out wings with a span of 2.7 m. The missile would be equipped with Small Turbofan Engines (STFEs), upgraded radio frequency (RF) seekers, and other subsystems.[32]
Submarine Launched Cruise Missile (SLCM)
editThe Submarine Launched Cruise Missile (SLCM) is a missile designed to launch from torpedo tubes of submarines. It is a compact version of Nirbhay missile. It has a stated range of 500 km, with a length of 5.6 meter, diameter of 0.505 meter, all up weight of 975 kg and Mach 0.7 speed. It would feature INS/GPS navigation, with an RF seeker for terminal guidance. There are plans to extend the missile's range to 800 km. During flight, SLCMs follow a low altitude trajectory. They skim close to the surface to stay out of the radar systems' altitude range. It comes with two variants: a Land attack cruise missile (LACM) and Anti-Ship Cruise Missile (ASCM).[31][27][33]
The missile shall be a part of the weapons package of Project 75(I) submarines.[34] The missile would be tested initially on Sindhughosh-class submarines.[33] The missile is under development trial stage.[31]
Testing
editThe first test flight of the missile was planned in October 2012,[35][36] but the launch was postponed to December owing to the changes being made to the launcher. V. K. Saraswat, Director General & Scientific Adviser of DRDO, later said that the missile would be tested in February 2013. He said the delay was due to development of some processes. DRDO expected the missile to be ready for induction within 12 to 18 months after the February test.[22][37][38] There were unconfirmed media reports that the missile would be scrapped due to multiple test failures but it was then reported that the project has been given an 18-month extension, till June 2018, to fix all outstanding issues.[39][40] Nirbhay cruise missile has a single shot kill ratio of above 90 percent.[41]
Date/Time
(IST) |
Variant | Launch Site | Duration | Outcome | Image |
---|---|---|---|---|---|
Operator | |||||
Range | Function | ||||
Details | |||||
12 MARCH 2013 | Nirbhay | Integrated Test Range | 15 min | Partial Success | |
DRDO | 1500 km | First test launch | |||
The missile in its maiden flight was supposed to hit a static target situated 1500 km away in the Bay of Bengal. Missile took off from the launch pad successfully and reached the second stage of propulsion, traveling 15 minutes through its envisaged path at a speed of 0.7 mach. After that it veered away from its trajectory forcing the command center to detach the engine from the missile midway into the flight. This was done to avoid the risk of the missile hitting the coastal areas. The missile was purposely destroyed in mid-flight.[42] The test was a partial success as the missile took off, reached the second stage of propulsion, and traveled 30% of its range and completed most of the mission objectives, before deviating from its path. DRDO has detected the problem which was a faulty inertial navigation system and corrected the same in subsequent tests. | |||||
17 OCT 2014 | Nirbhay | Integrated Test Range | 1 hour and 10 minutes | Success | |
DRDO | >1500 km | Second test launch | |||
(Initially scheduled for February–May 2014[43] but later delayed until October 2014 due to cyclone Hudhud)
The missile test met all the parameters & completed all 15 way-points. The missile was tracked with the help of ground-based radars and its health parameters were monitored by telemetry stations from DRDO's ITR and LRDE (Electronics & Radar Development Establishment).[44] An Indian Air Force SEPECAT Jaguar chased the missile during its flight to capture the video of the flight. | |||||
16 OCT 2015
11:38 AM |
Nirbhay | Integrated Test Range | 11 min | Failure | |
DRDO | 128 km | Third test launch | |||
The missile was to be tested for its low flying capability. The missile in flight was supposed to be brought down from 4800 meters to 20 meters gradually and in stages. A Su-30MKI aircraft videotaped the flight.[45] A press release by the Ministry of Defence stated the missile was launched at 11:38 IST and all initial critical operations such as Booster ignition, Booster separation, Wing deployment and engine start were successfully executed and Nirbhay reached the desired Cruise Altitude.[46] Although the take off was successful after repeated disruptions of countdown, the missile crashed into the Bay of Bengal 11 minutes into its flight after covering only 128 km of its 1500 km range.[47] | |||||
21 DEC 2016 | Nirbhay | Integrated Test Range | N/A | Failure | |
DRDO | N/A | Fourth test launch | |||
No official word on the test outcome, however according to news reports this test was not successful. The booster engine in the first stage started working and lifted the missile off from its launcher. But the missile started veering dangerously towards one side in two minutes after lift-off and veered outside its safety corridor. Due to this, the test was aborted and the missile was remotely destroyed. A potential reason for the failure was described as a hardware problem with one of the missile's component.[50][51][52] | |||||
7 NOV 2017
11:20 AM |
Nirbhay | ITR Launch Complex 3 | 50 min | Success | |
DRDO | 647 km | Fifth test launch | |||
During the test, the missile traveled a distance of 647 km over a 50 minute duration, and was tracked by ground based radars and telemetry stations.[53][54] This trial of the missile used a turbojet engine instead of a turbofan engine[55] | |||||
15 APR 2019 | Nirbhay | Integrated Test Range | N/A | Success | |
DRDO | 650 km | Sixth test launch | |||
The test missile navigated way-points located at altitudes varying from 5 meters to 2.5 km. DRDO clarified that all mission objectives were met.[56] The test also validated the terrain hugging and the sea skimming capability of the missile.[57]
This trial completed the developmental trials of the missile. The next set of trials would be conducted as per the requirements of the Indian Armed Forces.[58] | |||||
End of Nirbhay Programme; Start of ITCM Programme | |||||
12 OCT 2020 | ITCM | Integrated Test Range | 8 min | Failure | |
DRDO | N/A | First ITCM trial | |||
Fired for the first time with indigenously developed GTRE STFE MANIK turbofan engine. The test was aborted after 8 minutes of launch.[59] As per DRDO, the missile deviated from predetermined flight path and was destroyed mid-air by mission control team.[60][61] | |||||
24 JUN 2021 | ITCM | ITR Launch Complex 3 | N/A | Success | |
DRDO | 1500 km | Second ITCM trial | |||
The successful test was conducted with the GTRE Manik engine paving the way for a full range test.[64] | |||||
11 AUG 2021 | ITCM | ITR Launch Complex 3 | N/A | Failure | |
DRDO | 1500 km | Third ITCM trial | |||
As per DRDO officials, MANIK engine performed well but the missile failed to achieve the desired range due to failure in control mechanism.[65][61] | |||||
28 OCT 2022 | ITCM | ITR Launch Complex 3 | N/A | Failure | |
DRDO | N/A | Fourth ITCM trial | |||
Test failed due to a snag in the engine after separation of booster stage. This test included an upgraded radio frequency seeker.[61] | |||||
21 FEB 2023 | ITCM | Integrated Test Range | N/A | Success | |
DRDO | N/A | Fifth ITCM trial | |||
ITCM was test fired successfully. Fitted with an upgraded radio frequency seeker and Manik engine.[66][67] | |||||
Start of SLCM Testing | |||||
?? FEB 2023 | SLCM | Integrated Test Range | N/A | Success | |
DRDO | 402 km | First SLCM trial | |||
In February 2023, the maiden successful trail of SLCM was conducted by DRDO, which met all the mission objectives with a range of 402 km.[31][68] | |||||
18 APR 2024 | ITCM | Integrated Test Range | N/A | Success | |
DRDO | N/A | Sixth ITCM trial | |||
The missile displayed very low altitude sea-skimming flight and used way point navigation to follow the intended course.[69] The Manik STFE has proven to be dependable, as demonstrated by this successful flight test. To provide improved and dependable performance, the missile was additionally outfitted with updated avionics and software.[70] The missile was followed by one of IAF's Sukhoi Su-30MKI jet to study the performance of the missile.[71] |
Induction
editMinistry of Defence (MoD) is considering a proposal from one of the service for the induction of Nirbhay and is at an advance stage of discussion. Once cleared, all the three services of Indian Armed Forces will have Nirbhay in their arsenal. Government already cleared the induction of Nirbhay in two services about two years ago.[72]
The LRLACM received Acceptance of Necessity (AoN) from Defence Acquisition Council (DAC) for induction into Indian Air Force in August 2023.[32]
Nirbhay, Pralay, Brahmos and Pinaka will become part of the Integrated Rocket Force (IRF), a separate entity from Strategic Forces Command (SFC).[73][74]
Operators
editSee also
edit- Kh-55 - Russia
- 3M14 -Russia
- BGM-109 Tomahawk - United States
- Hyunmoo-3 - South Korea
- CJ-10 - China
- HN-1/2/3 - China
- Qader - Iran
- Atmaca - Turkey
- SOM - Turkey
- Noor ASCM - Iran
- Zafar - Iran
- Babur - Pakistan
- YJ-83 - China
- YJ-62 - China
- Otomat - Italy
- MdCN - UK, France, Italy
- List of missiles by country
- India and weapons of mass destruction
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External links
edit- CSIS Missile Threat - Nirbhay
- Nirbhay integration into Su-30MKI
- Liquid fuel Ramjet technology
- India to launch sub-sonic missile next month
Technical: