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{{hatnote|Mk 46 is also the designation of the [[M249 light machine gun#Variants|Mk 46 Mod 0]] variant of the [[M249 light machine gun]]}}
{{Short description|Lightweight antisubmarine torpedo}}{{hatnote|Mk 46 is also the designation of the [[M249 light machine gun#Variants|Mk 46 Mod 0]] variant of the [[M249 light machine gun]]}}
{{Infobox weapon
{{Infobox weapon
|name = Mark 46 torpedo
|name = Mark 46 torpedo
| image = MK46 torpedo launch.jpg
| image = File:Mark 46 torpedo launched by DD-980 1996.JPEG
| image_size = 300
| image_size = 300
|caption = A Mk 46 exercise torpedo launched from {{USS|Mustin|DDG-89|6}}.
|caption = A Mk 46 exercise torpedo launched from {{USS| Moosbrugger |DD-980|6}}.
|origin = United States<!-- Please DON'T add those tiny flags, as they limit horizontal space (Read [WP:Manual of Style/Icons#Avoid flag icons in infoboxes]]). -->
|origin = United States<!-- Please DON'T add those tiny flags, as they limit horizontal space (Read [WP:Manual of Style/Icons#Avoid flag icons in infoboxes]]). -->
|type = Lightweight [[Antisubmarine warfare|antisubmarine]] [[torpedo]]<ref name="joliehist">{{cite web | last= Jolie | first = E.W. | title = A Brief History of US Navy Torpedo Development: Torpedo Mk46 | date = 15 September 1978 | url= http://www.maritime.org/doc/jolie/part2.htm | access-date = 24 June 2013}}</ref>
|type = Lightweight [[Antisubmarine warfare|anti-submarine]] [[torpedo]]<ref name="joliehist">{{cite web | last= Jolie | first = E.W. | title = A Brief History of US Navy Torpedo Development: Torpedo Mk46 | date = 15 September 1978 | url= http://www.maritime.org/doc/jolie/part2.htm | access-date = 24 June 2013}}</ref>
<!-- Type selection -->
<!-- Type selection -->
|is_ranged = y
|is_ranged = y
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|designer = Naval Ordnance Test Station Pasadena<ref name="joliehist"/><br>[[Aerojet]]<ref name="joliehist"/><br>[[Alliant Techsystems]]
|designer = Naval Ordnance Test Station Pasadena<ref name="joliehist"/><br>[[Aerojet]]<ref name="joliehist"/><br>[[Alliant Techsystems]]
|design_date = 1960<ref name="joliehist"/>
|design_date = 1960<ref name="joliehist"/>
|manufacturer = [[Aerojet]]<ref name="joliehist"/><br>[[Naval Ordnance Station Forest Park]]<br>[[Honeywell]]<br>[[Raytheon]]<ref name="navy">{{cite web | title = The US Navy Fact File: Mark 46 Torpedo | date = 27 November 2012 | url= http://www.navy.mil/navydata/fact_display.asp?cid=2100&tid=900&ct=2 | access-date = August 9, 2018}}</ref>
|manufacturer = [[Aerojet]]<ref name="joliehist"/><br>[[Naval Ordnance Station Forest Park]]<br>[[Honeywell]]<br>[[Raytheon]]<ref name="navy">{{cite web | title = The US Navy Fact File: Mark 46 Torpedo | date = 27 November 2012 | url = http://www.navy.mil/navydata/fact_display.asp?cid=2100&tid=900&ct=2 | access-date = August 9, 2018 | archive-date = 20 March 2019 | archive-url = https://web.archive.org/web/20190320025704/https://www.navy.mil/navydata/fact_display.asp?cid=2100&tid=900&ct=2 | url-status = dead }}</ref>
|unit_cost =
|unit_cost =
|production_date =
|production_date =
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[[File:Mark-46-prop.jpg|thumb|A Mark 46 Mod 5A torpedo is inspected aboard the guided missile destroyer [[USS Mustin (DDG-89)|USS ''Mustin'']].]]
[[File:Mark-46-prop.jpg|thumb|A Mark 46 Mod 5A torpedo is inspected aboard the guided missile destroyer [[USS Mustin (DDG-89)|USS ''Mustin'']].]]
[[File:Lynx mk46.jpg|thumb|A French ''[[Lynx (helicopter)|Lynx.]]'' helicopter carrying a Mk 46 torpedo.]]
[[File:Lynx mk46.jpg|thumb|A French ''[[Lynx (helicopter)|Lynx.]]'' helicopter carrying a Mk 46 torpedo.]]
[[File:P-8A Poseidon of VP-16 dropping torpedo in 2013.JPG|thumb|right|A [[P-8A Poseidon]] of VP-16 dropping a Mark 46 torpedo]]


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 torpedo]]es 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]].<ref>{{cite book | last = Friedman | first = Norman | author-link = Norman Friedman | title = U.S. Submarines Since 1945: An Illustrated Design History | publisher = Naval Institute Press | year = 1994 | location = [[Annapolis, Maryland]] | pages = [https://archive.org/details/ussubmarinessinc1945frie/page/n120 109]-114 | url =https://archive.org/details/ussubmarinessinc1945frie| url-access = limited | isbn = 1-55750-260-9 }}</ref>
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 torpedo]]es 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]].<ref>{{cite book | last = Friedman | first = Norman | author-link = Norman Friedman | title = U.S. Submarines Since 1945: An Illustrated Design History | publisher = Naval Institute Press | year = 1994 | location = [[Annapolis, Maryland]] | pages = [https://archive.org/details/ussubmarinessinc1945frie/page/n120 109]-114 | url =https://archive.org/details/ussubmarinessinc1945frie| url-access = limited | isbn = 1-55750-260-9 }}</ref>


==Design details==
==Design details==
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==Operators==
==Operators==
{{More citations needed section|date=October 2023}}
[[File:Mark 46 operators.png|thumb|400px|Map with Mark 46 operators in red]]
{{div col|colwidth=16em}}
{{div col|colwidth=16em}}
*{{flag|Australia}}
*{{flag|Australia}}
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*{{flag|Chile}}
*{{flag|Chile}}
*{{flag|Colombia}}
*{{flag|Colombia}}
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*{{flag|Croatia}}
*{{flag|Ecuador}}
*{{flag|Ecuador}}
*{{flag|Egypt}}
*{{flag|Egypt}}
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*{{flag|Pakistan}}
*{{flag|Pakistan}}
*{{flag|Peru}}
*{{flag|Peru}}
*{{flag|Philippines}}<ref name=Mk46Mentioned_FromPhN'sK745Acquisition>{{Cite web |title=Frigate Lot 3A - Torpedoes Acquisition Project of the Philippine Navy |url=https://www.phdefenseresource.com/2021/04/frigate-lot-3a-torpedoes-acquisition.html?m=1 |website=www.phdefenseresource.com |date=3 April 2021}}</ref>
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*{{flag|Philippines}}
*{{flag|Portugal}}
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*{{flag|Saudi Arabia}}
*{{flag|Saudi Arabia}}
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[[Category:Torpedoes of the United Kingdom]]
[[Category:Torpedoes of the United Kingdom]]
[[Category:Aerial torpedoes]]
[[Category:Aerial torpedoes]]
[[Category:Military equipment introduced in the 1960s]]

Latest revision as of 03:34, 29 June 2024

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

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]

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 "The US Navy Fact File: Mark 46 Torpedo". 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) Archived 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.
[edit]

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