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{{Use dmy dates|date=June 2020}}
{{Use dmy dates|date=April 2024}}
{{Use Indian English|date=January 2020}}
{{Use Indian English|date=January 2020}}
{{infobox weapon
{{infobox weapon
| name = Shyena
| name = Shyena
| image =
| image = BEML stall at Defexpo 2016.jpg
⚫
| image_size = 300
| caption = Advanced Light Torpedo Shyena
| caption = Advanced Light Torpedo Shyena
| type = Lightweight [[torpedo]]
| type = Lightweight [[anti-submarine warfare|ASW]] [[torpedo]]<ref name="Torpedo Advanced Light (TAL) DARDO"/>
<!-- Type selection -->
<!-- Type selection -->| is_vehicle =
⚫
| is_vehicle =
| service =
| service =
| wars =
| wars = <!-- General specifications -->
<!-- Production history -->
⚫
| designer = <!--only appropriate for individuals, not for project leaders or a company or corporation-->
<!-- General specifications -->
| spec_label =
| spec_label =
| length = {{convert|2.75|m|ft|abbr=on}}
| length = {{convert|2.75|m|ft|abbr=on}}
| diameter = {{convert|324|mm|in|abbr=on}}
| diameter = {{convert|324|mm|in|abbr=on}}
<!-- Explosive specifications -->
<!-- Explosive specifications -->| origin = [[India]]
| origin = India
| is_ranged = yes
| is_ranged = yes
| is_bladed =
| is_bladed =
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| is_missile = yes
| is_missile = yes
| is_UK =
| is_UK =
| used_by = See ''[[Torpedo Advanced Light (TAL) Shyena#Operators|Operators]]''
<!-- Service history -->
⚫
| designer = [[Naval Science and Technological Laboratory]]<ref name="timesofindia.indiatimes.com" /><!--only appropriate for individuals, not for project leaders or a company or corporation-->
⚫
| used_by = [[Indian Navy]] <br> [[Myanmar Navy]]<ref name="timesofindia.indiatimes.com">{{cite news | url=https://timesofindia.indiatimes.com/india/india-steps-up-supply-of-military-equipment-to-myanmar-to-counter-china/articleshow/57815200.cms | title=India steps up supply of military equipment to Myanmar to counter China | first=Rajat | last=Pandit | date=24 March 2017 | newspaper=The Times of India | accessdate=19 January 2020 }}</ref>
| manufacturer = [[Bharat Dynamics]], [[Defence Research and Development Organisation]], [[Larsen & Toubro]]<ref name="timesofindia.indiatimes.com" />
| manufacturer = [[Bharat Dynamics Limited]] <br />[[Larsen & Toubro Limited]]
|production_date= March 2012 – present
| production_date = March 2012 – present
| no. built = 2000+
| number = 2,000+
| weight = {{convert|220|kg|lb|abbr=on}}
| weight = {{convert|220|kg|lb|abbr=on}}
| filling = [[High explosive]]
| filling = [[High explosive]]
| filling_weight = {{convert|50|kg|lb|abbr=on}}
| filling_weight = {{convert|50|kg|lb|abbr=on}}
| detonation =
| detonation =
| yield =
| yield = <!-- Vehicle/missile specifications -->
<!-- Vehicle/missile specifications -->
| engine = Electric
| engine = Electric
| engine_power =
| engine_power =
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| clearance =
| clearance =
| fuel_capacity =
| fuel_capacity =
| vehicle_range = {{convert|19|km|nmi|abbr=on}}<ref>{{cite news | url =https://affairscloud.com/india-successfully-conducts-maiden-flight-trial-of-indigenous-torpedo-shyena/ | website =Affairs Cloud | title =India successfully conducts maiden flight trial indigenous torpedo 'Shyean' | access-date =23 July 2021 | archive-date =22 July 2021 | archive-url =https://web.archive.org/web/20210722231943/https://affairscloud.com/india-successfully-conducts-maiden-flight-trial-of-indigenous-torpedo-shyena/ | url-status =live }}</ref>
| vehicle_range = {{convert|19|km|nmi|abbr=on}}
| speed = {{convert|33|kn|abbr=on|lk=on|1}}
| speed = {{convert|33|kn|abbr=on|lk=on|1}}
| guidance = [[Acoustic homing]] (active/passive)
| guidance = [[Acoustic homing]] (active/passive)
| steering =
| steering = <!-- Missiles only -->
⚫
| depth = {{convert|450|m|ft|abbr=on}}<ref name="Torpedo Advanced Light (TAL) DARDO"/>
<!-- Missiles only -->
⚫
| launch_platform = Ships, helicopters<ref name="Torpedo Advanced Light (TAL) DARDO"/>
⚫
| depth = {{convert|540|m|ft|abbr=on}}
⚫
| launch_platform = Ships, helicopters and submarines
}}
}}


The '''Advanced Light Torpedo (TAL) Shyena''' is the first indigenous advanced lightweight [[anti-submarine]] [[torpedo]] of India, developed by [[Naval Science and Technological Laboratory]] (NSTL) of the [[Defence Research and Development Organisation]] (DRDO) for the [[Indian Navy]].<ref name="rakshak">{{Cite web|url=http://www.bharat-rakshak.com/MONITOR/ISSUE3-4/joseph.html |title=Modern Torpedoes And Countermeasures |accessdate=2012-02-20 |publisher=BHARAT RAKSHAK MONITOR Volume 3(4) |date=January–February 2001 |author=Austin Joseph |url-status=dead |archiveurl=https://web.archive.org/web/20120222222226/http://www.bharat-rakshak.com/MONITOR/ISSUE3-4/joseph.html |archivedate=2012-02-22 }}</ref><ref name=spsnf>{{cite web|title=Indian Navy to receive Indigenous Light Torpedo SHYENA |url=http://www.spsnavalforces.net/exclusive/?id=18&h=Indian-Navy-to-receive-Indigenous-Light-Torpedo-SHYENA |archive-url=https://archive.is/20130222040521/http://www.spsnavalforces.net/exclusive/?id=18&h=Indian-Navy-to-receive-Indigenous-Light-Torpedo-SHYENA |url-status=dead |archive-date=22 February 2013 |publisher=SPS Naval Forces |accessdate=13 January 2013 }}</ref>
The '''Torpedo Advanced Light (TAL) Shyena''' ([[Sanskrit]]: श्येन, "Falcon or Hawk"<ref>{{Cite web|title=Wiktionary|url=https://en.wiktionary.org/wiki/%E0%A4%B6%E0%A5%8D%E0%A4%AF%E0%A5%87%E0%A4%A8|url-status=live|website=[[Wiktionary]]|archive-url=https://web.archive.org/web/20210126151010/https://en.wiktionary.org/wiki/%E0%A4%B6%E0%A5%8D%E0%A4%AF%E0%A5%87%E0%A4%A8 |archive-date=26 January 2021 }}</ref>) is the first indigenous advanced lightweight [[Anti-submarine weapon|anti-submarine]] [[torpedo]] of [[India]], developed by the [[Naval Science and Technological Laboratory]] (NSTL) of the [[Defence Research and Development Organisation]] (DRDO) for the [[Indian Navy]]. The lightweight torpedo can be launched by ships, helicopters and previously the now retired [[Ilyushin Il-38]], named after the divine hawk identified with [[Agni]].<ref name="rakshak">{{Cite web|url=http://www.bharat-rakshak.com/MONITOR/ISSUE3-4/joseph.html |title=Modern Torpedoes And Countermeasures |access-date=2012-02-20 |publisher=BHARAT RAKSHAK MONITOR Volume 3(4) |date=January–February 2001 |author=Austin Joseph |url-status=dead |archive-url=https://web.archive.org/web/20120222222226/http://www.bharat-rakshak.com/MONITOR/ISSUE3-4/joseph.html |archive-date=2012-02-22 }}</ref><ref name=spsnf>{{cite web|title=Indian Navy to receive Indigenous Light Torpedo SHYENA |url=http://www.spsnavalforces.net/exclusive/?id=18&h=Indian-Navy-to-receive-Indigenous-Light-Torpedo-SHYENA |archive-url=https://archive.today/20130222040521/http://www.spsnavalforces.net/exclusive/?id=18&h=Indian-Navy-to-receive-Indigenous-Light-Torpedo-SHYENA |url-status=dead |archive-date=22 February 2013 |publisher=SPS Naval Forces |access-date=13 January 2013 }}</ref><ref name="Torpedo Advanced Light (TAL) DARDO">{{cite news | url =https://www.drdo.gov.in/torpedo-advanced-light-tal | title =Torpedo Advanced Light (TAL) | website =DRDO | location =New Delhi | access-date =23 July 2021 | archive-date =22 July 2021 | archive-url =https://web.archive.org/web/20210722231232/https://www.drdo.gov.in/torpedo-advanced-light-tal | url-status =live }}</ref>

Torpedo Advanced Light Shyena also utilizes [[SMART (missile)|SMART missile]] as long range delivery platform.<ref>{{Cite web |last=Negi |first=Manjeet |date=2024-05-01 |title=Long-range anti-submarine missile system successfully tested |url=https://www.indiatoday.in/india/story/drdo-successfully-tests-long-range-smart-anti-submarine-missile-system-2533905-2024-05-01 |access-date=2024-05-01 |website=India Today |language=en}}</ref>


==Introduction==
==Introduction==
Shyena is a processor based torpedo which incorporates solid-state electronics, digital technology and has been equipped with an integrated Active/Passive sensor package for homing. It is designed to be capable of launching from both a helicopter or from a triple-tube launcher on surface vessels. Its key design feature are maneuverability and ability to transition from warm to cold medium to ensure a hunt and kill.<ref name="rakshak" /><ref name=spsnf /> The development period of the torpedo was quite long, starting in the 1990s, and was inducted into the Indian Navy on 3 March 2012, when the Indian Defence Minister A.K. Antony handed over the first consignment of TAL to the Navy in Hyderabad in 3 March.<ref name=spsnf />
Shyena is a processor based torpedo which incorporates solid-state electronics, digital technology and has been equipped with an integrated Active/Passive sensor package for [[Homing torpedo|homing]]. It is designed to be capable of being launched from both a helicopter or from a triple-tube launcher on surface vessels. Its key design feature are maneuverability and ability to transition from warm to cold medium to ensure a hunt and kill.<ref name="rakshak" /><ref name=spsnf /> The development period of the torpedo was quite long, starting in the 1990s, and concluding with its induction into the Indian Navy on 3 March 2012. On that date, the [[Minister of Defence (India)|Defence Minister]] [[A. K. Antony|A.K. Antony]] handed over the first consignment of TAL to the Navy in [[Hyderabad]].<ref name=spsnf />


== Design and development==
== Design and development==


Development of this missile was started by the [[Naval Science and Technological Laboratory]] (NSTL) in 1990s, under the Advanced Experimental Torpedo (TAE) program.<ref name=spsnf /><ref name="express">{{Cite web|url=http://www.expressindia.com/news/ie/daily/19970604/15550553.html |archive-url=https://archive.is/20130122144303/http://www.expressindia.com/news/ie/daily/19970604/15550553.html |url-status=dead |archive-date=2013-01-22 |title=Indian Navy's own torpedo 'Shyena' ready for trials |accessdate=2012-02-20 |work=The Indian Express|year=1997 |author=Vishwanath Hiremathpune }}</ref> It is an advanced capability torpedo and is heavily based on the Whitehead [[A244S]] torpedo.<ref name="rakshak"/> NSTL had faced a difficult task of developing a torpedo which could sustain its efficiency, in particular the maneuverability and structural integrity while travelling from the air medium to water after being launched from air. The computers perform their respective tasks, which are the successful launch of the torpedo, the homing of the target and its control and finally the recording of the data for analysis.<ref name="rakshak"/>
Development of this missile was started by the [[Naval Science and Technological Laboratory]] (NSTL) in 1990s, under the Advanced Experimental Torpedo (TAE) program.<ref name=spsnf /><ref name="express">{{Cite web|url=http://www.expressindia.com/news/ie/daily/19970604/15550553.html |archive-url=https://archive.today/20130122144303/http://www.expressindia.com/news/ie/daily/19970604/15550553.html |url-status=dead |archive-date=2013-01-22 |title=Indian Navy's own torpedo 'Shyena' ready for trials |access-date=2012-02-20 |work=The Indian Express|year=1997 |author=Vishwanath Hiremathpune }}</ref> It is an advanced capability torpedo and is heavily based on the Whitehead [[A244-S]] torpedo.<ref name="rakshak"/> NSTL had faced a difficult task of developing a torpedo which could sustain its efficiency, in particular the maneuverability and structural integrity while travelling from the air medium to water after being launched from the air. The computers perform their respective tasks, which are the successful launch of the torpedo, the homing of the target and its control and finally the recording of the data for analysis.<ref name="rakshak"/>


Shyena is electrically propelled, and can target submarines with a speed of 33 knots with endurance of six minutes in both shallow and deep waters. It can operate at depths of a few hundred meters and has self-homing, i.e. it can home in on targets by passive/active homing and explode on impact. Once launched, it can perform pre-programmed search patterns for available targets. The torpedo weighs around 220&nbsp;kg.<ref name=spsnf />
Shyena is electrically propelled, and can target submarines with a speed of 33 [[Knot (unit)|knots]] with endurance of six minutes in both shallow and deep waters. It can operate at depths of a few hundred metres and has self-homing, i.e. it can home in on targets by passive/active homing and explode on impact. Once launched, it can perform pre-programmed search patterns for available targets. The torpedo weighs around 220&nbsp;kg.<ref name=spsnf />


==Deployment==
==Deployment==
By 1998, ''Shyena'' was ready for trials, and it was tested 24 times by the NSTL from 1998 to 2000. During trials, thrust was laid on monitoring of various factors through four computers fitted on board Shyena.<ref name="express" /> User evaluation tests with designed and engineered models of the TAL took place in 2003–2005, following which the Navy was convinced of the system's capabilities, and the fact that 95 per cent of the components were indigenous except a few integrated circuits and sensors, and ordered 25 units, and is likely to order more. The TAL is currently being manufactured by [[Bharat Dynamics Limited]] at its Visakhapatnam unit.<ref name=spsnf /><ref>{{cite web|author=T. S. Subramanian |url=http://www.thehindu.com/sci-tech/technology/torpedo-akash-missile-to-be-handed-over-to-navy-and-iaf-on-saturday/article2951593.ece |title=Torpedo, Akash missile to be handed over to Navy and IAF on Saturday |work=The Hindu|date=2012-03-02 |accessdate=2013-04-05}}</ref>
By 1998, ''Shyena'' was ready for trials, and it was tested 24 times by the NSTL from 1998 to 2000. During trials, thrust was laid on monitoring of various factors through four computers fitted on board Shyena.<ref name="express" /> User evaluation tests with designed and engineered models of the TAL took place in 2003–2005. The tests confinced the Navy of the system's capabilities. Ninety-five per cent of the components were indigenous except a few integrated circuits and sensors. The Navy ordered 25 units, and was considered likely to order more. The TAL is currently being manufactured by [[Bharat Dynamics Limited]] at its Visakhapatnam unit.<ref name=spsnf /><ref>{{cite news |author=T. S. Subramanian |url=http://www.thehindu.com/sci-tech/technology/torpedo-akash-missile-to-be-handed-over-to-navy-and-iaf-on-saturday/article2951593.ece |title=Torpedo, Akash missile to be handed over to Navy and IAF on Saturday |work=The Hindu |date=2012-03-02 |access-date=2013-04-05 |archive-date=15 December 2013 |archive-url=https://web.archive.org/web/20131215044814/http://www.thehindu.com/sci-tech/technology/torpedo-akash-missile-to-be-handed-over-to-navy-and-iaf-on-saturday/article2951593.ece |url-status=live }}</ref>

On 8 March 2021, the Indian Navy successfully cleared ''Shyena's'' maiden flight trial with a parachute system from the [[Ilyushin Il-38]] maritime aircraft.<ref>{{cite news|url=https://www.thehindu.com/news/national/andhra-pradesh/lightweight-torpedo-test-fired-successfully/article34022882.ece|title=Lightweight torpedo test-fired successfully|work=The Hindu|date=9 March 2021|last1=Bhattacharjee|first1=Sumit|access-date=9 March 2021|archive-date=10 March 2021|archive-url=https://web.archive.org/web/20210310073028/https://www.thehindu.com/news/national/andhra-pradesh/lightweight-torpedo-test-fired-successfully/article34022882.ece|url-status=live}}</ref>

== Advanced Light-Weight Torpedo (ALWT) ==
Advanced Light-Weight Torpedo (ALWT) is the 2nd generation of Shyena [[Anti-submarine weapon|anti-submarine]] [[torpedo]]. The torpedo is developed by [[Naval Science and Technological Laboratory]] (NSTL) of [[Defence Research and Development Organisation|DRDO]] and produced by [[Bharat Electronics|Bharat Electronics Limited]] (BEL). It can be launched from ship, helicopter or from a fixed wing aircraft. The torpedo boasts a dual-speed capability for which it has a range of {{Convert|25|km|mi|abbr=on}} at {{cvt|25|kn|km/h|order=}} and a range of {{Convert|12|km|mi|abbr=on}} at {{cvt|50|kn|km/h|order=}}. It uses sea-water powered battery which eliminates the requirement of pre-launch charging. On 17 July 2024, it was announced that ALWT has completed all the user trials and is poised to replace [[Mark 46 torpedo]] in the Indian Navy's inventory. The torpedo will also be integrated on the [[Boeing P-8 Poseidon|Boeing P-8I Neptune]] fleet of the Indian Navy for [[anti-submarine warfare]] operations.<ref>{{Cite web |title=The Indian Navy must finalise its torpedo requirements as new generation torpedoes are now beginning to emerge |url=https://forceindia.net/feature-report/undersea-attack/ |access-date=2024-08-30 |language=en-US}}</ref><ref>{{Cite web |date=2024-07-17 |title=BEL's Advanced Lightweight Torpedo (ALWT) Clears User Trials, Set to Revolutionize Anti-Submarine Warfare |url=https://defence.in/threads/bels-advanced-lightweight-torpedo-alwt-clears-user-trials-set-to-revolutionize-anti-submarine-warfare.8433/#google_vignette |access-date=2024-08-30 |website=Defence.in |language=en-US}}</ref><ref>{{Cite web |date=2024-08-29 |title=India's P-8I Aircraft to be Armed with Indigenous Dual-Speed Light Torpedo to Bolster Aerial Anti-Submarine Defence |url=https://defence.in/threads/indias-p-8i-aircraft-to-be-armed-with-indigenous-dual-speed-light-torpedo-to-bolster-aerial-anti-submarine-defence.9557/ |access-date=2024-08-30 |website=Defence.in |language=en-US}}</ref>

==Export==

⚫
In March 2017, India signed a $37.9 million deal to supply ''Shyena'' to the [[Myanmar Navy]].<ref name="timesofindia.indiatimes.com" /><ref>{{Cite news|url=https://thediplomat.com/2017/03/india-to-supply-torpedoes-to-myanmar/|title=India to Supply Torpedoes to Myanmar|last=Diplomat|first=Prashanth Parameswaran, The|work=The Diplomat|access-date=2017-04-29|archive-date=11 November 2020|archive-url=https://web.archive.org/web/20201111190848/https://thediplomat.com/2017/03/india-to-supply-torpedoes-to-myanmar/|url-status=live}}</ref> The first batch of 20 torpedoes were delivered in July 2019.<ref name="TDMN">{{cite web|first1=Ankit|last1=Panda|access-date=2020-04-21|title=India Delivers Initial Batch of Indigenously Built Torpedoes to Myanmar Navy|url=https://thediplomat.com/2019/07/india-delivers-initial-batch-of-indigenously-built-torpedoes-to-myanmar-navy/|website=[[The Diplomat (magazine)|The Diplomat]]|date=16 July 2019|archive-date=28 October 2020|archive-url=https://web.archive.org/web/20201028005735/https://thediplomat.com/2019/07/india-delivers-initial-batch-of-indigenously-built-torpedoes-to-myanmar-navy/|url-status=live}}</ref>

BDL signed a third and fourth export contract for the ''Shyena'' torpedo in 2019 to an undisclosed friendly country. The value of the contract is {{INRConvert|455.27|c|lk=on|year=2019}} and {{INRConvert|1.43|c|year=2021}} respectively. The order is planned to be executed in 2020–21.<ref>{{cite web|url=https://bdl-india.in/sites/default/files/2020-09/BDL%20AR%2019-20.pdf|title=Annual Report 2019-20 BDL|publisher=BDL India|access-date=11 October 2020|archive-date=15 October 2021|archive-url=https://web.archive.org/web/20211015212826/https://bdl-india.in/sites/default/files/2020-09/BDL%20AR%2019-20.pdf|url-status=live}}</ref>


BDL has signed a total of 5 export orders for Shyena torpedoes to an undisclosed friendly country(s). Four orders has been successfully delivered while the fifth one is under execution in 2021–22.<ref>{{cite web|url=https://bdl-india.in/sites/default/files/2022-10/Annual%20Report%202021-22.pdf|title=Annual Report 2021-22|publisher=BDL India|date=2022-09-01}}</ref>
⚫
In March 2017, India signed a $37.9 million deal to supply ''Shyena'' to the [[Myanmar Navy]].<ref name="timesofindia.indiatimes.com" /><ref>{{Cite news|url=http://thediplomat.com/2017/03/india-to-supply-torpedoes-to-myanmar/|title=India to Supply Torpedoes to Myanmar|last=Diplomat|first=Prashanth Parameswaran, The|work=The Diplomat|access-date=2017-04-29|language=en-US}}</ref> The first batch of these torpedoes were delivered in July 2019.<ref>{{cite web|first1=Ankit|last1=Panda|accessdate=2020-04-21|title=India Delivers Initial Batch of Indigenously Built Torpedoes to Myanmar Navy|url=https://thediplomat.com/2019/07/india-delivers-initial-batch-of-indigenously-built-torpedoes-to-myanmar-navy/|website=[[The Diplomat]]|date=16 July 2019}}</ref>


==Operators==
==Operators==
[[File:Shyena advance light torpedo operators.png|thumb|300px|Map of Shyena torpedo operators in blue]]
*{{IND}} 1700+ in inventory
;{{IND}}
*{{MYA}} bought 160 unit's in 2019.
*[[Indian Navy]]<ref>{{Cite journal |date=2020 |title=Enhancing Indian Defence Exports |url=https://www.sidm.in/files/1582713845_Enhancing_Indias_export.pdf |journal=Society of Indian Defence Manufacturers |pages=27 |access-date=15 May 2023 |archive-date=30 April 2023 |archive-url=https://web.archive.org/web/20230430111547/https://www.sidm.in/files/1582713845_Enhancing_Indias_export.pdf |url-status=live }}</ref>
;{{MMR}}
⚫
*[[Myanmar Navy]]<ref name="timesofindia.indiatimes.com">{{cite news | url=https://timesofindia.indiatimes.com/india/india-steps-up-supply-of-military-equipment-to-myanmar-to-counter-china/articleshow/57815200.cms | title=India steps up supply of military equipment to Myanmar to counter China | first=Rajat | last=Pandit | date=24 March 2017 | newspaper=The Times of India | access-date=19 January 2020 | archive-date=22 May 2019 | archive-url=https://web.archive.org/web/20190522104310/https://timesofindia.indiatimes.com/india/india-steps-up-supply-of-military-equipment-to-myanmar-to-counter-china/articleshow/57815200.cms | url-status=live }}</ref><ref name="TDMN"/>
**[[Kyan Sittha-class frigate]]
**[[Anawrahta-class corvette]]
**[[Yan Nyein Aung-class submarine chaser]]


== Coverage==
== Coverage==
In his book "Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems", Eric Wertheim has described the Shyena as an up-and-coming torpedo developed by the DRDO.<ref name="Wertheim2007">{{cite book|author=Eric Wertheim|title=Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems|url=https://books.google.com/books?id=TJunjRvplU4C&pg=PA288|date=March 2007|publisher=Naval Institute Press|isbn=978-1-59114-955-2|page=288}}</ref>
In his book "''Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems''", [[Eric Wertheim]] has described the Shyena as an up-and-coming torpedo developed by the DRDO.<ref name="Wertheim2007">{{cite book|author=Eric Wertheim|title=Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems|url=https://books.google.com/books?id=TJunjRvplU4C&pg=PA288|date=March 2007|publisher=Naval Institute Press|isbn=978-1-59114-955-2|page=288}}</ref>


''Pursuit and Promotion of Science'', a report published by [[Indian National Science Academy]] mentions Shyena as an advanced experimental torpedo.<ref>{{citation |url=http://www.iisc.ernet.in/insa/ch31.pdf |chapter=31 Defence Research and Development Organisation |title=Pursuit and Promotion of Science : The Indian Experience|page=4 |publisher=[[Indian National Science Academy]] |oclc=52079109}}</ref>
''Pursuit and Promotion of Science'', a report published by [[Indian National Science Academy]] mentions Shyena as an advanced experimental torpedo.<ref>{{citation |chapter-url=http://www.iisc.ernet.in/insa/ch31.pdf |chapter=31 Defence Research and Development Organisation |title=Pursuit and Promotion of Science : The Indian Experience |page=4 |publisher=[[Indian National Science Academy]] |oclc=52079109 |access-date=27 February 2012 |archive-date=25 October 2020 |archive-url=https://web.archive.org/web/20201025000248/http://www.iisc.ernet.in/insa/ch31.pdf |url-status=dead }}</ref>


==See also==
==See also==
* [[APR-3E torpedo]] - Russian equivalent
* [[APR-3E torpedo]] – Russian equivalent
* [[A244-S]] - Italian equivalent
* [[A244-S]] – Italian equivalent
* [[Mark 54 Lightweight Torpedo]] - US Navy's equivalent
* [[Mark 54 Lightweight Torpedo]] – US Navy's equivalent
* [[MU90 Impact]] - French/Italian equivalent
* [[MU90 Impact]] – French/Italian equivalent
* [[Sting Ray (torpedo)]] - British equivalent
* [[Sting Ray (torpedo)]] – British equivalent
* [[Yu-7 torpedo]] - Chinese equivalent
* [[Yu-7 torpedo]] – Chinese equivalent
* [[Chung Sang Eo|K745 Chung Sang Eo]] - South Korean equivalent
* [[Chung Sang Eo|K745 Chung Sang Eo]] – South Korean equivalent
* [[Type 97 light weight torpedo (G-RX4)]] – Japanese equivalent


==References==
==References==
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{{Indian missiles}}
{{Indian missiles}}


[[Category:Weapons of India|Navy]]
[[Category:Torpedoes of India]]
[[Category:Indian Navy]]
[[Category:Indian Navy]]
[[Category:Aerial torpedoes]]
[[Category:Aerial torpedoes]]
[[Category:Military equipment introduced in the 2010s]]

Latest revision as of 04:44, 31 December 2024

Shyena
Advanced Light Torpedo Shyena
TypeLightweight ASW torpedo[1]
Place of originIndia
Service history
Used bySee Operators
Production history
DesignerNaval Science and Technological Laboratory[2]
ManufacturerBharat Dynamics Limited
Larsen & Toubro Limited
ProducedMarch 2012 – present
No. built2,000+
Specifications
Mass220 kg (490 lb)
Length2.75 m (9.0 ft)
Diameter324 mm (12.8 in)
WarheadHigh explosive
Warhead weight50 kg (110 lb)
EngineElectric
Operational
range
19 km (10 nmi)[3]
Maximum depth450 m (1,480 ft)[1]
Maximum speed 33 kn (61.1 km/h; 38.0 mph)
Guidance
system
Acoustic homing (active/passive)
Launch
platform
Ships, helicopters[1]

The Torpedo Advanced Light (TAL) Shyena (Sanskrit: श्येन, "Falcon or Hawk"[4]) is the first indigenous advanced lightweight anti-submarine torpedo of India, developed by the Naval Science and Technological Laboratory (NSTL) of the Defence Research and Development Organisation (DRDO) for the Indian Navy. The lightweight torpedo can be launched by ships, helicopters and previously the now retired Ilyushin Il-38, named after the divine hawk identified with Agni.[5][6][1]

Torpedo Advanced Light Shyena also utilizes SMART missile as long range delivery platform.[7]

Introduction

[edit]

Shyena is a processor based torpedo which incorporates solid-state electronics, digital technology and has been equipped with an integrated Active/Passive sensor package for homing. It is designed to be capable of being launched from both a helicopter or from a triple-tube launcher on surface vessels. Its key design feature are maneuverability and ability to transition from warm to cold medium to ensure a hunt and kill.[5][6] The development period of the torpedo was quite long, starting in the 1990s, and concluding with its induction into the Indian Navy on 3 March 2012. On that date, the Defence Minister A.K. Antony handed over the first consignment of TAL to the Navy in Hyderabad.[6]

Design and development

[edit]

Development of this missile was started by the Naval Science and Technological Laboratory (NSTL) in 1990s, under the Advanced Experimental Torpedo (TAE) program.[6][8] It is an advanced capability torpedo and is heavily based on the Whitehead A244-S torpedo.[5] NSTL had faced a difficult task of developing a torpedo which could sustain its efficiency, in particular the maneuverability and structural integrity while travelling from the air medium to water after being launched from the air. The computers perform their respective tasks, which are the successful launch of the torpedo, the homing of the target and its control and finally the recording of the data for analysis.[5]

Shyena is electrically propelled, and can target submarines with a speed of 33 knots with endurance of six minutes in both shallow and deep waters. It can operate at depths of a few hundred metres and has self-homing, i.e. it can home in on targets by passive/active homing and explode on impact. Once launched, it can perform pre-programmed search patterns for available targets. The torpedo weighs around 220 kg.[6]

Deployment

[edit]

By 1998, Shyena was ready for trials, and it was tested 24 times by the NSTL from 1998 to 2000. During trials, thrust was laid on monitoring of various factors through four computers fitted on board Shyena.[8] User evaluation tests with designed and engineered models of the TAL took place in 2003–2005. The tests confinced the Navy of the system's capabilities. Ninety-five per cent of the components were indigenous except a few integrated circuits and sensors. The Navy ordered 25 units, and was considered likely to order more. The TAL is currently being manufactured by Bharat Dynamics Limited at its Visakhapatnam unit.[6][9]

On 8 March 2021, the Indian Navy successfully cleared Shyena's maiden flight trial with a parachute system from the Ilyushin Il-38 maritime aircraft.[10]

Advanced Light-Weight Torpedo (ALWT)

[edit]

Advanced Light-Weight Torpedo (ALWT) is the 2nd generation of Shyena anti-submarine torpedo. The torpedo is developed by Naval Science and Technological Laboratory (NSTL) of DRDO and produced by Bharat Electronics Limited (BEL). It can be launched from ship, helicopter or from a fixed wing aircraft. The torpedo boasts a dual-speed capability for which it has a range of 25 km (16 mi) at 25 kn (46 km/h) and a range of 12 km (7.5 mi) at 50 kn (93 km/h). It uses sea-water powered battery which eliminates the requirement of pre-launch charging. On 17 July 2024, it was announced that ALWT has completed all the user trials and is poised to replace Mark 46 torpedo in the Indian Navy's inventory. The torpedo will also be integrated on the Boeing P-8I Neptune fleet of the Indian Navy for anti-submarine warfare operations.[11][12][13]

Export

[edit]

In March 2017, India signed a $37.9 million deal to supply Shyena to the Myanmar Navy.[2][14] The first batch of 20 torpedoes were delivered in July 2019.[15]

BDL signed a third and fourth export contract for the Shyena torpedo in 2019 to an undisclosed friendly country. The value of the contract is ₹455.27 crore (equivalent to ₹566 crore or US$66 million in 2023) and ₹1.43 crore (equivalent to ₹1.6 crore or US$190,000 in 2023) respectively. The order is planned to be executed in 2020–21.[16]

BDL has signed a total of 5 export orders for Shyena torpedoes to an undisclosed friendly country(s). Four orders has been successfully delivered while the fifth one is under execution in 2021–22.[17]

Operators

[edit]
Map of Shyena torpedo operators in blue
 India
 Myanmar

Coverage

[edit]

In his book "Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems", Eric Wertheim has described the Shyena as an up-and-coming torpedo developed by the DRDO.[19]

Pursuit and Promotion of Science, a report published by Indian National Science Academy mentions Shyena as an advanced experimental torpedo.[20]

See also

[edit]

References

[edit]
  1. ^ a b c d "Torpedo Advanced Light (TAL)". DRDO. New Delhi. Archived from the original on 22 July 2021. Retrieved 23 July 2021.
  2. ^ a b c Pandit, Rajat (24 March 2017). "India steps up supply of military equipment to Myanmar to counter China". The Times of India. Archived from the original on 22 May 2019. Retrieved 19 January 2020.
  3. ^ "India successfully conducts maiden flight trial indigenous torpedo 'Shyean'". Affairs Cloud. Archived from the original on 22 July 2021. Retrieved 23 July 2021.
  4. ^ "Wiktionary". Wiktionary. Archived from the original on 26 January 2021.
  5. ^ a b c d Austin Joseph (January–February 2001). "Modern Torpedoes And Countermeasures". BHARAT RAKSHAK MONITOR Volume 3(4). Archived from the original on 22 February 2012. Retrieved 20 February 2012.
  6. ^ a b c d e f "Indian Navy to receive Indigenous Light Torpedo SHYENA". SPS Naval Forces. Archived from the original on 22 February 2013. Retrieved 13 January 2013.
  7. ^ Negi, Manjeet (1 May 2024). "Long-range anti-submarine missile system successfully tested". India Today. Retrieved 1 May 2024.
  8. ^ a b Vishwanath Hiremathpune (1997). "Indian Navy's own torpedo 'Shyena' ready for trials". The Indian Express. Archived from the original on 22 January 2013. Retrieved 20 February 2012.
  9. ^ T. S. Subramanian (2 March 2012). "Torpedo, Akash missile to be handed over to Navy and IAF on Saturday". The Hindu. Archived from the original on 15 December 2013. Retrieved 5 April 2013.
  10. ^ Bhattacharjee, Sumit (9 March 2021). "Lightweight torpedo test-fired successfully". The Hindu. Archived from the original on 10 March 2021. Retrieved 9 March 2021.
  11. ^ "The Indian Navy must finalise its torpedo requirements as new generation torpedoes are now beginning to emerge". Retrieved 30 August 2024.
  12. ^ "BEL's Advanced Lightweight Torpedo (ALWT) Clears User Trials, Set to Revolutionize Anti-Submarine Warfare". Defence.in. 17 July 2024. Retrieved 30 August 2024.
  13. ^ "India's P-8I Aircraft to be Armed with Indigenous Dual-Speed Light Torpedo to Bolster Aerial Anti-Submarine Defence". Defence.in. 29 August 2024. Retrieved 30 August 2024.
  14. ^ Diplomat, Prashanth Parameswaran, The. "India to Supply Torpedoes to Myanmar". The Diplomat. Archived from the original on 11 November 2020. Retrieved 29 April 2017.{{cite news}}: CS1 maint: multiple names: authors list (link)
  15. ^ a b Panda, Ankit (16 July 2019). "India Delivers Initial Batch of Indigenously Built Torpedoes to Myanmar Navy". The Diplomat. Archived from the original on 28 October 2020. Retrieved 21 April 2020.
  16. ^ "Annual Report 2019-20 BDL" (PDF). BDL India. Archived (PDF) from the original on 15 October 2021. Retrieved 11 October 2020.
  17. ^ "Annual Report 2021-22" (PDF). BDL India. 1 September 2022.
  18. ^ "Enhancing Indian Defence Exports" (PDF). Society of Indian Defence Manufacturers: 27. 2020. Archived (PDF) from the original on 30 April 2023. Retrieved 15 May 2023.
  19. ^ Eric Wertheim (March 2007). Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems. Naval Institute Press. p. 288. ISBN 978-1-59114-955-2.
  20. ^ "31 Defence Research and Development Organisation" (PDF), Pursuit and Promotion of Science : The Indian Experience, Indian National Science Academy, p. 4, OCLC 52079109, archived from the original (PDF) on 25 October 2020, retrieved 27 February 2012
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