Dec 18, 2015 00:17 UTC
The Naval Air Warfare Center Aircraft Division (NAWCAD) laboratories and the Anti-submarine Warfare Systems program office (PMA-264) rapidly developed
a new sonobuoy launching system over the summer and fall which was delivered this November. The new system was developed as the existing system, the S-3, was being retired. A bit of brainstorming resulted in putting two SH-60B launchers on a pallet to roll on and off from a KC-130 tanker operated by the VX-30 Air Test and Evaluation Squadron.
P-8A: Sonobuoy drop
Sonobuoys are used to detect and identify moving underwater objects by either listening for the sounds produced by propellers and machinery (passive detection), or by bouncing a sonar “ping” off the surface of a submarine (active detection). They usually float, or have at least some part of them that does. Specialized sonobuoys can also detect electric fields, magnetic anomalies, and bioluminescence (light emitted by microscopic organisms disturbed by a passing submarine); as well as measuring environmental parameters like water temperature versus depth, air temperature, barometric pressure, and wave height.
Sonobuoys are generally dropped from aircraft or helicopters that are equipped with a means to launch them, and electronic equipment to receive and process data sent by the sonobuoy. They can also be launched from ships. This entry will discuss some of the new sonobuoys in use, and cover related contracts.
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Sep 03, 2015 01:59 UTC
Latest updates[?]: Raytheon
will get $33 million to make more AN/AQS-22 Airborne Low Frequency Sonar devices. With options, the contract could be worth as much as $98 million.
MH-60R & ALFS,
The AN/AQS-22 Airborne Low-Frequency Sonar (ALFS) will equip the US Nay’s new MH-60R multi-mission helicopters, serving as their primary anti-submarine sensor. The new FLASH sonar operates using lower frequencies and higher-power waveforms than existing dipping sonars, improving long-range detection. The AQS-22 dipping sonar claims 4x the area coverage of current systems, and includes both active or passive sonar modes to help track, localize, and classify submarines. A winching system with up to 2,500 feet of cable raises and lowers the sonar.
The ALFS system complements the MH-60R’s radar, and works in concert with other equipment including active or passive sonobuoys, signal processing improvements that are especially helpful in shallow water. This Spotlight article highlights ALFS-related contracts from 2002 to the present.
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Sep 30, 2014 17:25 UTC
Latest updates[?]: 5-year Tech Insertion hardware contract for USA and Australia; Background improved to reflect ongoing extrinsic and intrinsic A-RCI program issues.
Acoustic Rapid Commercial-Off-The-Shelf Insertion (A-RCI) is a sonar system upgrade installed on the USA’s entire submarine fleet, including SSN-688 Los Angeles & SSN-688I Improved Los Angeles Class, SSN-21 Seawolf Class, SSN-744 Virginia Class, SSBN-726 Ohio Class nuclear missile boats, and the new SSGN Tactical Trident special ops and strike subs.
This DID Spotlight on ARCI adds a bit more explanation of exactly what the program entails and where its benefits were focused, as well as covers contracts placed under the A-RCI program from FY 2005 onward. The program’s concept is simple: you can upgrade the system without changing the sensors. By sharply upgrading ship sensor processing, it integrates and improves the boat’s towed array, hull array and sphere array sonars, running more advanced algorithms and providing a fuller “picture” of the surrounding environment. Sometimes, it really is all about what you can do with it. A-RCI’s open architecture concept also make it easier to integrate additional sensors, providing a dual-track improvement option for American submarines.
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May 29, 2013 18:34 UTC
HMS Astute & Type 45
In late May 2013, Thales UK signed a 10-year, GBP 600 million Sensor Support Optimisation Project (SSOP) with the Ministry of Defence. It extends the 2003 Contractor Logistics Support deal that covered electronic warfare/ ESM and sonar system support on an array of submarines and surface ships.
SSOP coverage includes all British submarine classes (SSN Trafalgar and Astute classes, SSBN Vanguard Class), Type 45 Daring Class destroyers, Type 23 Duke Class frigates, and the Hunt and Sandown Classes of minehunting vessels. It also covers all visual systems (periscopes etc.) for all Royal Navy submarines, which had been a separate contract with Thales UK’s optronics business in Glasgow. This progression is familiar to readers who have followed British Future Contracting for Availability practices over the last several years.
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Sep 12, 2012 16:35 UTC
The Pennsylvania State University Applied Research Laboratory serves as a U.S. Navy UARC (University Affiliated Research Center) in Defense science and technologies, with a focus in naval missions and related areas. In September 2012, they were awarded a 5-year, maximum $415 million cost-plus-fixed-fee indefinite-delivery/ indefinite-quantity task order contract. in return, they’ll provide up to 2,060,076 staff hours for research, development, engineering, and test and evaluation. An option for an additional 5 years could bring the maximum value to $853.3 million, and the cumulative staff hours to 3,935,759.
PSU’s ARL will work on guidance, navigation and control of undersea systems; advanced thermal propulsion concepts and systems for undersea vehicles; advanced propulsors and other fluid machinery for marine systems; materials and manufacturing technology; atmosphere and defense communications systems; and other related technologies. Individual task orders will be issued as needs arise. Work is expected to be completed by September 2017, or September 2022 with all options exercised. This contract was not competitively procured by US Naval Sea Systems Command in Washington, DC (N00024-12-D-6404).