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Archives by category > Underwater Weapons (RSS)

Team Torpedo: US Firms Sell & Support MK48s and MK54s

Dec 19, 2022 04:56 UTC

Latest updates[?]: Lockheed Martin won a $302 million contract action for the proof of manufacture, production, spares, production support material, and engineering support for components related to the MK 48 heavyweight torpedo all up round. This contract combines purchases for the Navy; and the Royal Australian Navy. Work will be performed in Liverpool, New York; Clearwater, Florida; and Braintree, Massachusetts, and is expected to be completed by October 2026.

Mk-48 Attack Before and After

Mk 48: Before and After
(click for full sequence)

The Mk-48 is the standard heavyweight torpedo used by the US military, and is mounted primarily on submarines. Surface ships use the smaller Mk46 or Mk50. The Mk-54, in contrast, stemmed from the need for a smaller, lighter, and cost effective advanced torpedo – one that could be dropped from helicopters, planes, and smaller ships. In recent years, the US has moved to modernize and maintain its Mk-48 inventory; the Mk-54 also requires servicing and spares.

Many of these contracts were issued under a total enterprise partnership between Raytheon and the US Navy called Team Torpedo, dedicated to meeting the needs of U.S. and allied naval fleets. Team Torpedo combines Raytheon’s manufacturing, design engineering, and support services expertise with the systems engineering and testing capabilities of Naval Undersea Warfare Center (NUWC) operations in Newport, RI, and Keyport, WA. Now, a new provider has entered the picture. DID has the complete set of contracts below… plus more details regarding the torpedoes involved, and the answer to the question “what the heck is CBASS standard”?

Continue Reading… »

Longshot: A Swooping HAAWC for Torpedoes

Mar 09, 2021 04:58 UTC

Latest updates[?]: According to Lockheed Martin, the US Army’s new extended-range version of its Guided Multiple Launch Rocket System (GMLRS) had a successful 80-kilometer flight demonstration at White Sands Missile Range, New Mexico, on March 4. Lockheed Martin is the manufacturer of the GMLRS munition and has worked with the Army to double the rocket’s reach through extended-range capability development. The 80-kilometer shot fired from the Army’s High Mobility Artillery Rocket System met the test objectives, Lockheed said in its news release. The release added that the demo “confirmed the missile’s flight trajectory performance, range and validated interfaces with the HIMARS launcher and system software performance.”

HAWC Torpedo Concept

Mk54 HAAWC

American maritime patrol aircraft currently carry torpedoes as part of their armament, which serve as key weapons against enemy submarines. As any high-diver of cliff-jumper knows first hand, however, water can feel surprisingly solid after a long fall. Torpedoes still have to be released from low altitude, typically 100 feet or less above the waves. Two recent developments, however, are making this approach less practical for the US military. One is tests of sub-launched anti-air missile systems, using modified short-range air-air missiles that do not require radar guidance. The other is its selection of the 737-based P-8A Poseidon as its next maritime patrol and surface surveillance aircraft. The P-8A can perform low swoops if necessary, but its airframe is really optimized for cruising at altitude.

As these trends developed, someone in the US military asked the logical next question:

Continue Reading… »

Taiwan’s Force Modernization: The American Side

Jul 27, 2020 04:54 UTC DII

Latest updates[?]: Taiwan’s National Chung-Shan Institute of Science and Technology (NCSIST) is under pressure from the military to complete the Initial Operational Test & Evaluation of its Hai Chien 2 anti-air missile by this year. The Navy wants to start limited production of the missile from March next year so that the Tuo Chiang Class corvettes can have an anti-air capability. Unfortunately for NCSIST, the institute has run into problems integrating the missile with air defense radar. To meet the deadline by next year, it has to start shipborne testing in the next few months. So far, the missile has only been fired at sea once in 2014. Another effort to have the missile fired from the Mk 41 VLS is also delayed as the indigenous Hsun Lien naval combat systems is behind schedule.
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Taiwan military

Despite China’s ominous military buildup across the strait, key weapons sales of P-3 maritime patrol aircraft, Patriot PAC-3 missiles, and diesel-electric submarines to Taiwan had been sabotaged by Taiwanese politics for years – in some cases, since 1997. The KMT party’s flip-flops and determined stalling tactics eventually created a crisis in US-Taiwan relations, which finally soured to the point that the USA refused a Taiwanese request for F-16C/D aircraft.

That seems to have brought things to a head. Most of the budget and political issues were eventually sorted out, and after a long delay, some major elements of Taiwan’s requested modernization program appear to be moving forward: P-3 maritime patrol aircraft, UH-60M helicopters, Patriot missile upgrades; and requests for AH-64D attack helicopters, E-2 Hawkeye AWACS planes, minehunting ships, and missiles for defense against aircraft, ships, and tanks. These are must-have capabilities when facing a Chinese government that has vowed to take the country by force, and which is building an extensive submarine fleet, a large array of ballistic missiles, an upgraded fighter fleet, and a number of amphibious-capable divisions. Chinese pressure continues to stall some of Taiwan’s most important upgrades, including diesel-electric submarines, and new American fighter jets. Meanwhile, other purchases from abroad continue.

Continue Reading… »

SSGN “Tactical Trident” Subs: Special Forces and Super Strike

Jul 02, 2019 04:56 UTC DII

Latest updates[?]: International Marine and Industrial Applicators LLC was tapped with $8.5 million for the accomplishment of preservation and non-SUBSAFE structural repairs and maintenance on USS Michigan or SSGN 727. The deal will provide preservation, structural repairs, anode removal and safety track repair requirements and include all necessary management, material support services, labor, supplies and equipment deemed necessary to perform this work. Non-SUBSAFE means the structural repairs and maintenance are not part of the Submarine Safety Program, a quality assurance program of the US Navy designed to maintain the safety of the submarine fleet. The USS Michigan is the second sub of the Ohio Class of ballistic missile submarines and guided missile submarines. The Michigan was launched on April 26, 1980. It was built to carry the Navy's third generation submarine-launched ballistic missile (SLBM), the Trident C-4. Work under the contract will take place in Bremerton, Washington and is scheduled to be complete by June next year.

Trident II SLBM

From these…

In the aftermath of the START-II arms control treaty, some of the USA’s nuclear-powered Ohio Class SSBN nuclear missile submarines were converted to become long range conventional strike and special operations SSGN “Tactical Tridents.” Four ultra-stealthy Ohio-class SSBNs had their 24 Trident II D-5 nuclear ballistic missiles removed. They were replaced with up to 154 Tomahawk cruise missiles, plus space in the sub for 66-102 special forces troops, special attachments for new Advanced SEAL Delivery System (ASDS) or older Seal Delivery Vehicle (SDV) “mini-subs,” and a mission control center. Unmanned Underwater Vehicles, and even UAVs for aerial operations, are expected to become equally important options over the SSGN fleet’s career.

Navy SEALs Ashore

…to these

These modifications provide the USA with an impressive and impressively flexible set of conventional firepower, in a survivable and virtually undetectable platform, which can remain on station for very long periods of time. As surveillance-strike complexes make the near-shore more and more hazardous for conventional ships, and the potential dangers posed by small groups continue to rise, America’s converted SSGN submarines will become more and more valuable. This updated, free-to-view article covers their origins and timeline, the key technologies involved, contracts from the program’s inception to the present day, with all 4 submarines back in service.

Continue Reading… »

Vietnam’s Restocking: Subs, Ships, Sukhois, and Now Perhaps F-16s and P-3s?

May 02, 2017 00:55 UTC DII

Latest updates[?]: Vietnam has started to take delivery of some components needed for the assembly of three RV-02 medium-range radars. The system is an improvement on the Vostok-E VHF radar made by Belarus, of which Hanoi bought 20 of the radars as an asymmetric warfare strategy against stealth fighters from China including the J-20 and J-31 over the disputed South China Sea. Acceptance and commission checks were conducted by engineers from Vietnam's Examination Council of the PK-KQ Technical Institute.
SSK Kilo

Kilo Class cutaway

In April 2009, reports surfaced that Vietnam had agreed in principle to a deal with Russia for 6 of its diesel-electric Kilo/ Project 636 Class fast attack submarines. By December 2009, it was an inflection-point deal for a capability that Vietnam has never had before. By November 2013, the new submarines had begun to arrive.

Nor is that the only change in Vietnam’s military capabilities these days, courtesy of their long-standing relationship with Russia. There have been some outside deals for items like maritime surveillance floatplanes, and a Dutch deal will provide high-end frigates. For the most part, however, Vietnam’s new combat power in the air, at sea, and on land is coming from Russia. China’s displays of naval might are only part of the mosaic influencing Vietnam’s decisions in these matters.

Continue Reading… »

Upgrades At Last: Keeping India’s U209 Subs Afloat

Sep 03, 2014 19:59 UTC

INS Shishumar

INS Shishumar
(click to view larger)

India’s Navy will be hard-pressed to keep an adequate submarine force afloat over the medium term. Its 6 “Project 75” Scorpene Class submarines won’t begin deploying before 2019, 2 of its 10 aging Kilo Class boats have been wrecked, and its 4 U209 submarines are quickly approaching the end of their useful lives.

Nevertheless, if submarine strength is to be maintained while waiting for the Scorpenes, it’s the U209s that are going to have to fill the numbers gap…

Continue Reading… »

US-South Korea Rift? Of Tiger Eyes & Industrial Spies

Nov 23, 2011 21:53 UTC

F-15SE CWB

ROKAF F-15K

In late November 2011, South Korea’s left-wing Hankyoreh newspaper reports that a combination of unauthorized examination of an F-15K’s Lockheed Martin “Tiger Eyes” IRST(InfraRed Search and Track) sensor, and concerns that a number of South Korean products contain copied technologies, have halted “strategic weapons exports” from the USA to South Korea. That reportedly includes the proposed RQ-4B Global Hawk deal.

The allegations are single-source, and written by Hankyoreh, but they are also quite detailed:

Continue Reading… »

Lockheed Receives $16.7M VL-ASROC Contract

Jul 21, 2010 12:43 UTC

VL-ASROC

VL-ASROC test

Lockheed Martin Corp. in Akron, OH received a $16.7 million undefinitized ceiling priced order under a previously awarded contract, to build various components for the MK54 vertical launched ASROC (anti-submarine rocket) missiles. Work will be performed in Akron, OH, and is expected to be complete by August 2012. This contract was not competitively awarded by the US Naval Inventory Control Point in Mechanicsburg, PA (N00104-07-G-0726, #0006). See also FBO solicitation.

The Mk-54 is the USA’s newest lightweight torpedo, replacing the older Mk-46. The RUM-139 VL-ASROC can be crudely described as a rocket attached to a break-away torpedo, which offers a number of advantages. One is an expanded firing range of up to 15 nautical miles or so. Another is the ability to load VL-ASROCs into Mk.41 vertical launch systems. A loaded cell can give even ships without deck-mounted torpedo tubes a snap-response capability against enemy submarines.

Flipper Can Find It: US Navy Uses Dolphins to ‘Sniff’ for Mines

Dec 06, 2009 14:22 UTC

NAVY_Dolphin_Mine_Marker.jpg

Dolphin with mine marker
(click to view larger)

Just as the dog’s keen sense of smell makes it well suited to detect land mines, so the US Navy has found that the biological sonar of dolphins, called echolocation, makes them effective at locating and marking sea mines.

To take advantage of these skills, the Navy Marine Mammal Program studies, trains, and deploys dolphins, as well as sea lions, to carry out various underwater tasks for the Navy.

As part of the program, the Fleet’s Marine Mammal Systems (MMS) use dolphins and sea lions to find and mark the location of underwater objects…

Continue Reading… »

STS to Supply Quad-S Maritime Sensor Capabilities to US Navy

Sep 07, 2009 14:15 UTC

CORP_STS_Logo.jpg/

STS International in Berkeley Springs, WV won a $23.3 million cost-plus-fixed-fee contract for operational capabilities for the surface and subsurface surveillance system (Quad-S). Quad S is a multifunction surveillance system that can be used in both military expeditionary operations and homeland security missions.

STS will perform the work in Tampa, FL and expects to complete it by September 2014. This contract was competitively procured via Navy Electronic Commerce Online and FedBizOpps websites, with 3 proposals received by the Naval Surface Warfare Center (NAVSEA) Panama City Division in Florida (N61331-09-C-0020).

Quad-S integrates a range of maritime sensors…

Continue Reading… »
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