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Mark 46 torpedo

April 11, 2024

Mk 46 is also the designation of the Mk 46 Mod 0 variant of the M249 light machine gun

The Mark 46 torpedo is the backbone of the United States Navy's lightweight anti-submarine warfare torpedo inventory and is the NATO standard. These aerial torpedoes are designed to attack high-performance submarines. In 1989, an improvement program for the Mod 5 to the Mod 5A and Mod 5A(S) increased its shallow-water performance. The Mark 46 was initially developed as Research Torpedo Concept I (RETORC I), one of several weapons recommended for implementation by Project Nobska, a 1956 summer study on submarine warfare.[3]

Mark 46 torpedo
A Mk 46 exercise torpedo launched from USS Moosbrugger.
TypeLightweight anti-submarine torpedo[1]
Place of originUnited States
Service history
In service• Mod 0: 1963[1]
• Mod 5: 1979
Used bySee operators
Production history
DesignerNaval Ordnance Test Station Pasadena[1]
Aerojet[1]
Alliant Techsystems
Designed1960[1]
ManufacturerAerojet[1]
Naval Ordnance Station Forest Park
Honeywell
Raytheon[2]
VariantsMod 0[1]
Mod 1
Mod 2
Mod 5
Mod 5A
Mod 5A(S)
Mod 5A(SW)[2]
Specifications
Mass508 lb (230 kg)
Length8 ft 6 in (2.59 m)
Diameter12.75 in (323.8 mm)
WarheadPBXN-103 high explosive (bulk charge)
Warhead weight96.8 lb (43.9 kg)
EngineTwo-speed, reciprocating external combustion
PropellantOtto fuel II
Operational
range
12,000 yd (11,000 m)
Maximum depth>1,200 ft (370 m)
Maximum speed >40 kn (74 km/h; 46 mph)
Guidance
system
Active or passive/active acoustic homing
Launch
platform
Mark 32 Surface Vessel Torpedo Tubes, ASW Aircraft, RUM-139 VL-ASROC
A Mark 46 Mod 5A torpedo is inspected aboard the guided missile destroyer USS Mustin.
A French Lynx. helicopter carrying a Mk 46 torpedo.
A P-8A Poseidon of VP-16 dropping a Mark 46 torpedo

Design details edit

Mark 46, Mod 5
  • Primary Function: Air and ship-launched lightweight torpedo[4]
  • Contractor: Alliant Techsystems
  • Power Plant: Two-speed, reciprocating external combustion; Mono-propellant (Otto fuel II)
  • Length: 8 ft 6 in (2.59 m) tube launch configuration (from ship),[5] 14 ft 9 in (4.50 m) with ASROC rocket booster[4]
  • Weight: 508 lb (230 kg)[4] (warshot configuration)
  • Diameter: 12.75 in (324 mm)[5]
  • Range: 12,000 yd (11,000 m)[4]
  • Depth: > 1,200 ft (370 m)
  • Speed: > 40 kn (74 km/h; 46 mph)[4]
  • Guidance System: Homing mode: Active or passive/active acoustic homing[5]
  • Launch/search mode: Snake or circle search
  • Warhead: 96.8 lb (43.9 kg)[4] of PBXN-103 high explosive (bulk charge)
  • Date Deployed: 1967 (Mod 0);[4] 1979 (Mod 5)

Yu-7 variant edit

The Chinese Yu-7 torpedo is said to be based on the Mk 46 Mod 2. The Chinese Navy used the Yu-7 ASW torpedo, deployed primarily on ships and ASW helicopters,[6] but it started to be replaced by the Yu-11 in 2012.[7]

Operators edit

See also edit

References edit

Citations
  1. ^ a b c d e f g Jolie, E.W. (15 September 1978). "A Brief History of US Navy Torpedo Development: Torpedo Mk46". Retrieved 24 June 2013.
  2. ^ a b . 27 November 2012. Archived from the original on 20 March 2019. Retrieved 9 August 2018.
  3. ^ Friedman, Norman (1994). U.S. Submarines Since 1945: An Illustrated Design History. Annapolis, Maryland: Naval Institute Press. pp. 109-114. ISBN 1-55750-260-9.
  4. ^ a b c d e f g Thomas, Vincent C. The Almanac of Seapower 1987 Navy League of the United States (1987) ISBN 0-9610724-8-2 pp.190-191
  5. ^ a b c Polmar, Norman "The Ships and Aircraft of the U.S. Fleet: Torpedoes" United States Naval Institute Proceedings November 1978 p.160
  6. ^ (Chinese language) 2006-11-02 at the Wayback Machine
  7. ^ "Undersea dragon: Chinese ASW capabilities advance" (PDF). Jane's. 2017. Retrieved 23 July 2019.
  8. ^ "Frigate Lot 3A - Torpedoes Acquisition Project of the Philippine Navy". www.phdefenseresource.com. 3 April 2021.
  9. ^ "Mk 46 torpedo - Weaponsystems.net". www.weaponsystems.net.

External links edit

  • DiGiulian, Tony, Navweaps.com: USA Torpedoes
  • Unofficial U.S. Navy Site: MK-46 Torpedo
  • FAS: MK-46 Torpedo

April 11, 2024
mark, torpedo, also, designation, variant, m249, light, machine, backbone, united, states, navy, lightweight, anti, submarine, warfare, torpedo, inventory, nato, standard, these, aerial, torpedoes, designed, attack, high, performance, submarines, 1989, improve. Mk 46 is also the designation of the Mk 46 Mod 0 variant of the M249 light machine gun The Mark 46 torpedo is the backbone of the United States Navy s lightweight anti submarine warfare torpedo inventory and is the NATO standard These aerial torpedoes are designed to attack high performance submarines In 1989 an improvement program for the Mod 5 to the Mod 5A and Mod 5A S increased its shallow water performance The Mark 46 was initially developed as Research Torpedo Concept I RETORC I one of several weapons recommended for implementation by Project Nobska a 1956 summer study on submarine warfare 3 Mark 46 torpedoA Mk 46 exercise torpedo launched from USS Moosbrugger TypeLightweight anti submarine torpedo 1 Place of originUnited StatesService historyIn service Mod 0 1963 1 Mod 5 1979Used bySee operatorsProduction historyDesignerNaval Ordnance Test Station Pasadena 1 Aerojet 1 Alliant TechsystemsDesigned1960 1 ManufacturerAerojet 1 Naval Ordnance Station Forest ParkHoneywellRaytheon 2 VariantsMod 0 1 Mod 1Mod 2Mod 5Mod 5AMod 5A S Mod 5A SW 2 SpecificationsMass508 lb 230 kg Length8 ft 6 in 2 59 m Diameter12 75 in 323 8 mm WarheadPBXN 103 high explosive bulk charge Warhead weight96 8 lb 43 9 kg EngineTwo speed reciprocating external combustionPropellantOtto fuel IIOperationalrange12 000 yd 11 000 m Maximum depth gt 1 200 ft 370 m Maximum speed gt 40 kn 74 km h 46 mph GuidancesystemActive or passive active acoustic homingLaunchplatformMark 32 Surface Vessel Torpedo Tubes ASW Aircraft RUM 139 VL ASROCA Mark 46 Mod 5A torpedo is inspected aboard the guided missile destroyer USS Mustin A French Lynx helicopter carrying a Mk 46 torpedo A P 8A Poseidon of VP 16 dropping a Mark 46 torpedo Contents 1 Design details 2 Yu 7 variant 3 Operators 4 See also 5 References 6 External linksDesign details editMark 46 Mod 5Primary Function Air and ship launched lightweight torpedo 4 Contractor Alliant Techsystems Power Plant Two speed reciprocating external combustion Mono propellant Otto fuel II Length 8 ft 6 in 2 59 m tube launch configuration from ship 5 14 ft 9 in 4 50 m with ASROC rocket booster 4 Weight 508 lb 230 kg 4 warshot configuration Diameter 12 75 in 324 mm 5 Range 12 000 yd 11 000 m 4 Depth gt 1 200 ft 370 m Speed gt 40 kn 74 km h 46 mph 4 Guidance System Homing mode Active or passive active acoustic homing 5 Launch search mode Snake or circle search Warhead 96 8 lb 43 9 kg 4 of PBXN 103 high explosive bulk charge Date Deployed 1967 Mod 0 4 1979 Mod 5 Yu 7 variant editThe Chinese Yu 7 torpedo is said to be based on the Mk 46 Mod 2 The Chinese Navy used the Yu 7 ASW torpedo deployed primarily on ships and ASW helicopters 6 but it started to be replaced by the Yu 11 in 2012 7 Operators editThis section needs additional citations for verification Please help improve this article by adding citations to reliable sources in this section Unsourced material may be challenged and removed October 2023 Learn how and when to remove this template message nbsp Australia nbsp Bahrain nbsp Belgium nbsp Brazil nbsp Canada nbsp Chile nbsp Colombia nbsp Croatia nbsp Ecuador nbsp Egypt nbsp France nbsp Germany nbsp Greece nbsp Indonesia nbsp Iran nbsp Israel nbsp Italy nbsp Japan nbsp Kuwait nbsp Mexico nbsp Morocco nbsp Netherlands nbsp New Zealand nbsp Norway nbsp Pakistan nbsp Peru nbsp Philippines 8 nbsp Portugal nbsp Saudi Arabia nbsp South Korea nbsp Spain nbsp Taiwan nbsp Thailand nbsp Turkey nbsp United Arab Emirates nbsp United Kingdom nbsp United States 9 See also editCAPTOR mine a sea mine which incorporates a Mk 46 torpedo MU90 Impact torpedo Mark 50 torpedo Mark 54 MAKO Lightweight Torpedo Stingray torpedo Advanced Light Torpedo ShyenaReferences editCitations a b c d e f g Jolie E W 15 September 1978 A Brief History of US Navy Torpedo Development Torpedo Mk46 Retrieved 24 June 2013 a b The US Navy Fact File Mark 46 Torpedo 27 November 2012 Archived from the original on 20 March 2019 Retrieved 9 August 2018 Friedman Norman 1994 U S Submarines Since 1945 An Illustrated Design History Annapolis Maryland Naval Institute Press pp 109 114 ISBN 1 55750 260 9 a b c d e f g Thomas Vincent C The Almanac of Seapower 1987 Navy League of the United States 1987 ISBN 0 9610724 8 2 pp 190 191 a b c Polmar Norman The Ships and Aircraft of the U S Fleet Torpedoes United States Naval Institute Proceedings November 1978 p 160 Chinese language Archived 2006 11 02 at the Wayback Machine Undersea dragon Chinese ASW capabilities advance PDF Jane s 2017 Retrieved 23 July 2019 Frigate Lot 3A Torpedoes Acquisition Project of the Philippine Navy www phdefenseresource com 3 April 2021 Mk 46 torpedo Weaponsystems net www weaponsystems net External links editDiGiulian Tony Navweaps com USA Torpedoes Unofficial U S Navy Site MK 46 Torpedo FAS MK 46 Torpedo Retrieved from https en wikipedia org w index php title Mark 46 torpedo amp oldid 1191590812, wikipedia, wiki, book, books, library,

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