Feb 13, 2013 13:04 UTC
Latest updates[?]: HAASW: there's more to sonobuoys than just dropping them.
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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Jan 29, 2013 16:10 UTC
LMV in Afghanistan
After some bad experiences with its up-armored Mercedes “Gelendevagen” in Afghanistan, Norway decided that they needed patrol vehicles with better protection. In 2006, therefore, they placed an order for 25 blast-resistant Iveco MLV/LMV vehicles, which are called Lynx by the Italians and Panther by the UK.
Deliveries began in 2006, and the vehicle’s performance in Afghanistan has led to additional orders over the years. A 2013 buy brings Norway’s order total to 170.
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Jan 15, 2013 13:33 UTC
Latest updates[?]: Funds released again; New supplier in town.
AIM-120C from F-22A
(click for test missile zoom)
Raytheon’s AIM-120 Advanced, Medium-Range Air to Air Missile (AMRAAM) has become the world market leader for medium range air-to-air missiles, and is also beginning to make inroads within land-based defense systems. It was designed with the lessons of Vietnam in mind, and of local air combat exercises like ACEVAL and Red Flag. This DID FOCUS article covers successive generations of AMRAAM missiles, international contracts and key events from 2006 onward, and even some of its emerging competitors.
One of the key lessons learned from Vietnam was that a fighter would be likely to encounter multiple enemies, and would need to launch and guide several missiles at once in order to ensure its survival. This had not been possible with the AIM-7 Sparrow, a “semi-active radar homing” missile that required a constant radar lock on one target. To make matters worse, enemy fighters were capable of launching missiles of their own. Pilots who weren’t free to maneuver after launch would often be forced to “break lock,” or be killed – sometimes even by a short-range missile fired during the last phases of their enemy’s approach. Since fighters that could carry radar-guided missiles like the AIM-7 tended to be larger and more expensive, and the Soviets were known to have far more fighters overall, this was not a good trade…
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Jan 03, 2013 13:00 UTC
Latest updates[?]: Ship kits for Egypt and Turkey.
Harpoon in flight
The sub-sonic, wave-skimming GM-84 Harpoon is the US Navy’s sole anti-shipping missile, with the minor exception of small helicopter-borne AGM-119B Penguin missiles. The Harpoon has been adapted into several variants, and exported to many navies around the world. At present, the Harpoon family includes AGM-84 air, RGM-84 sea/land, and UGM-84 submarine-launched versions. Variants such as the Joint Standoff Land Attack Missiles and the upgraded AGM-84K SLAM – Expanded Response will also be covered in this DID FOCUS Article. It describes the missiles themselves, and covers global contracts involving this family.
The Harpoon family’s best known competitor is the French/MBDA M38/39/40 Exocet, but recent years have witnessed a growing competitive roster at both the subsonic (Israel’s Gabriel family, Russia’s SS-N-27 Klub family, Saab’s RBS15, Kongsberg’s stealthy NSM, China’s YJ-82/C-802 used by Hezbollah in Lebanon), and supersonic (Russia’s SS-N-22 Sunburn/Moskit, SS-N-26 Yakhont, and some SS-N-27 Klub variants, India’s SS-N-26 derived PJ-10 BrahMos) tiers.
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