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| RUR-5 ASROC | |
|---|---|
| Name | RUR-5 ASROC |
| Caption | ASROC launcher aboard USN ship |
| Origin | United States |
| Type | anti-submarine missile |
| Service | 1961–1990s |
| Designer | Naval Ordnance Laboratory, Bell Telephone Laboratories |
| Manufacturer | Grumman, Boeing, General Dynamics |
| Weight | 1200 lb (varies) |
| Length | 18 ft |
| Diameter | 22 in |
| Filling | torpedo or nuclear depth charge |
| Launch platform | surface warships |
RUR-5 ASROC The RUR-5 ASROC was an American ship-launched anti-submarine rocket that combined rocket propulsion with torpedo delivery to engage submerged submarines at standoff ranges. Developed during the Cold War by United States Navy researchers and industrial partners, it entered service to counter threats posed by Soviet Navy NATO adversaries and allied submarine forces. The system influenced subsequent anti-submarine warfare developments and appeared on many United States Navy and allied platforms through late 20th century conflicts.
Development traces to Cold War exigencies after encounters in the Korean War and early Cold War submarine proliferation. Initiatives by the United States Department of Defense and the Office of Naval Research funded work at the Naval Ordnance Laboratory and consultations with Bell Laboratories, Massachusetts Institute of Technology, and private firms such as Grumman and Boeing. The program addressed challenges noted in reports from the CNO and hearings of the United States Congress during the 1950s. Prototypes were trialed at test ranges associated with Naval Air Station Patuxent River and evaluated alongside systems like the Hedgehog and Squid ahead of operational acceptance. Political drivers included deterrence doctrines influenced by figures linked to the Pentagon Papers era and strategic assessments from the Rand Corporation. Trials involved collaboration with shipbuilders such as Bath Iron Works and Newport News Shipbuilding, and the service introduction was overseen by sea trials with commanders reporting to the Chief of Naval Operations.
The basic launcher delivered a rocket-propelled delivery vehicle that released a guidance-free payload—either an anti-submarine torpedo or a nuclear depth charge—into the water. Early warhead options referenced tactical nuclear designs developed under Atomic Energy Commission protocols and joint programs with Lawrence Livermore National Laboratory. Variants included modifications for different torpedoes such as the Mark 46 and later lightweight designs related to Mark 50 concepts. Launch systems evolved from the original box launcher to adaptors fitted on destroyers, cruisers, and frigates built by firms like Ingalls Shipbuilding and Bath Iron Works. Export and allied integrations prompted interfaces compatible with command systems from NATO partners and integration efforts with electronics suppliers including Raytheon and Westinghouse Electric Corporation.
ASROC-equipped ships first deployed in the early 1960s during heightened tensions in regions where Soviet Navy submarine patrols intersected with carrier battle groups and convoy routes. Exercises with NATO units demonstrated standoff engagement techniques later codified in tactical manuals used by fleets commanded by admirals whose careers intersected with events like the Cuban Missile Crisis and the Vietnam War. ASROC saw peacetime service during patrols in the North Atlantic Treaty area, the Mediterranean Sea during crises involving the Six-Day War aftermath, and surveillance operations near choke points such as the Strait of Gibraltar and the GIUK gap. Incidents logged in squadron histories and after-action reports influenced ASW doctrine at institutions like the Naval War College and informed procurement decisions at the Pentagon.
The system was installed on USS Forrestal (CV-59)-class and USS Kitty Hawk (CV-63)-class carriers' escorting destroyers and cruisers, sprouting across classes including Berkeley-class destroyer, Charles F. Adams-class destroyer, Bainbridge-class frigate, and Leahy-class cruiser. Allied navies such as the Japan Maritime Self-Defense Force, the Royal Netherlands Navy, and the Italian Navy integrated compatible versions on vessels constructed by Mitsubishi Heavy Industries and Fincantieri. Installation required modifications to combat information centers linked to sonar arrays developed by Sperry Corporation and fire-control suites from General Electric. Deployments were coordinated in task forces commanded by officers who had served in operations with the United States Sixth Fleet and the Seventh Fleet.
ASROC’s rocket motor provided ranges up to several miles, permitting engagement beyond the reach of shipboard depth charge throwers and ahead-throwing mortars. The payload commonly carried the Mark 46 torpedo, a Mark 44 torpedo in early loads, or the nuclear W44 depth bomb in deterrence roles established under policies debated in Congressional hearings. Sensors such as hull-mounted and towed arrays from developers like Raytheon and Bendix Corporation supplied targeting data via tactical data links influenced by standards from NATO committees. Performance metrics influenced later lightweight torpedo development by institutions including Naval Undersea Warfare Center and manufacturers like Honeywell and Lockheed Martin.
By the 1990s ASROC began to be superseded by systems offering vertical launch integration and improved networked fire control, such as the RUM-139 VL-ASROC and torpedo tubes linked to newer ships like Arleigh Burke-class destroyer and Ticonderoga-class cruiser. Lessons from ASROC informed doctrines studied at Naval Postgraduate School and procurement frameworks within the Defense Advanced Research Projects Agency. Its influence extended to allied programs in United Kingdom and Japan, shaping modern anti-submarine architectures and sonobuoy tactics used by platforms like P-3 Orion and P-8 Poseidon maritime patrol aircraft. ASROC remains a case study in combined-arms delivery, cited in analyses by the Brookings Institution and preserved examples appear in naval museums curated by organizations such as the Naval Historical Center and the National Museum of the United States Navy.
Category:Anti-submarine weapons