Mark 54 lightweight torpedo vs Torpedo Advanced Light Shyena

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ATorpedoes

Torpedo Advanced Light Shyena

Lightweight ASW torpedo

AI-generated illustration · Not a photograph

Credit

ForceTally · AI-generated illustration · Not a photograph · AI-generated · OpenAI output terms · Source ↗ · Modified

First system

Second system

At a glance

Side by side

Length comparisonOne shared metre scale

Mark 54 lightweight torpedoLength

2.72 m

Length source ↗

Torpedo Advanced Light ShyenaLength

2.75 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Mark 54 lightweight torpedolarger figure on 1 of 4

Mass

Measured figures

Head to head

18 of 26 rows sourced on both sides

2.72m

2.75m

Length+1%

All recorded figures & sources

2.72 m

Length

Single source

8 ft 10.9 in or 106.9 in (2.72 m)^[source]

2.75 m

Length

Single source

Configuration

Details

Mark 54 lightweight torpedo and Torpedo Advanced Light Shyena configuration
Specification	Mark 54 lightweight torpedo	Torpedo Advanced Light Shyena
Type	Lightweight ASW torpedo^[source]	Lightweight ASW torpedo^[source]
Place of origin	United States^[source]	India^[source]
In service	2004–present^[source]	—
Used by	United States Navy Royal Australian Navy Royal Canadian Navy Royal Air Force Royal Netherlands Navy Republic of China Navy^[source]	See Operators

Designer	Raytheon Systems^[source]	Naval Science and Technological Laboratory^[source]

Designed	1999^[source]	—

Unit cost	US$839,320 (FY2014)^[source]	—

Produced	2003^[source]	March 2012 – present^[source]

Warhead	PBX N-103^[source]	High explosive^[source]

Blast yield	238 lb (108 kg) TNT^[source]	—

Engine	Reciprocating external combustion^[source]	Electric^[source]

Propellant	Otto II (liquid)^[source]	—

Maximum depth	>450 metres (1,480 ft) (estimate)^[source]	>450 m (>1,480 ft)^[source]

Guidance system	Active or passive/active acoustic homing^[source]	Acoustic homing (active/passive)^[source]

Launch platform	Mark 32 Surface Vessel Torpedo Tubes , ASW Aircraft, RUM-139 VL-ASROC^[source]	Ships, helicopters^[source]

Source measurement	The Mark 54 lightweight torpedo (formerly known as lightweight hybrid torpedo , or LHT ) is a standard 12.75-inch (324 mm) anti-submarine warfare (ASW) torpedo used by the United States Navy and several other nations' armed forces.^[source]Mark 54 lightweight torpedo · Lead; only the objects and conditions stated in this passage A new version designated Mk 54 Mod 1 Increment 1 was fielded in 2021. As of 2022, the Navy intended to begin operational tests of versions Mod 1 Increment 2 and Mod 2 in 2026 and 2027, respectively. Mod 1 contains updates to sonar and computing hardware, and is replacing Mod 0 in existing inventories.^[source]Mark 54 lightweight torpedo · Development; only the objects and conditions stated in this passage	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.^[source]Torpedo Advanced Light Shyena · Design and development; only the objects and conditions stated in this passage 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). It can be launched from ship, helicopter or from a fixed wing aircraft. Based on inputs from the platform's sonar and Fire Control System inputs, certain preset parameters are given to the torpedo prior to launch in order to ensure the target is in a favourable position to acquire, home in and destroy the it. 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. The ALWT will also form the warhead of the SMART anti-submarine missile along with a parachute-based release system. The torpedo is meant 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.^[source]Torpedo Advanced Light Shyena · Advanced Light-Weight Torpedo (ALWT); only the objects and conditions stated in this passage 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$59 million in 2023) and ₹ 1.43 crore (equivalent to ₹ 1.6 crore or US$170,000 in 2023) respectively. The order is planned to be executed in 2020–21.^[source]Torpedo Advanced Light Shyena · Exports; only the objects and conditions stated in this passage

Source measurement

The Mark 54 lightweight torpedo (formerly known as lightweight hybrid torpedo , or LHT ) is a standard 12.75-inch (324 mm) anti-submarine warfare (ASW) torpedo used by the United States Navy and several other nations' armed forces.^[source]Mark 54 lightweight torpedo · Lead; only the objects and conditions stated in this passage

A new version designated Mk 54 Mod 1 Increment 1 was fielded in 2021. As of 2022, the Navy intended to begin operational tests of versions Mod 1 Increment 2 and Mod 2 in 2026 and 2027, respectively. Mod 1 contains updates to sonar and computing hardware, and is replacing Mod 0 in existing inventories.^[source]Mark 54 lightweight torpedo · Development; only the objects and conditions stated in this passage

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.^[source]Torpedo Advanced Light Shyena · Design and development; only the objects and conditions stated in this passage

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). It can be launched from ship, helicopter or from a fixed wing aircraft. Based on inputs from the platform's sonar and Fire Control System inputs, certain preset parameters are given to the torpedo prior to launch in order to ensure the target is in a favourable position to acquire, home in and destroy the it. 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. The ALWT will also form the warhead of the SMART anti-submarine missile along with a parachute-based release system. The torpedo is meant 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.^[source]Torpedo Advanced Light Shyena · Advanced Light-Weight Torpedo (ALWT); only the objects and conditions stated in this passage

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$59 million in 2023) and ₹ 1.43 crore (equivalent to ₹ 1.6 crore or US$170,000 in 2023) respectively. The order is planned to be executed in 2020–21.^[source]Torpedo Advanced Light Shyena · Exports; only the objects and conditions stated in this passage