RGSS escribió:maximo, tendrías algún link o información específica de esos "invéntos" hardkill para torpedos, ya que suena interesante el tema, grácias
) que me ha servido para aclararme un poco sobre cómo está el tema http://www.bharat-rakshak.com/MONITOR/ISSUE3-4/joseph.html... Ahora falta averiguar si alguno de los desarrollos parecidos al Nixie permite velocidades de arrastre de >30 nudos 
Hard Kill Option:
Hard Kill option are currently at sea only on Russian Ship, Currently the Russian Navy HWT hard kill capability is illustrated by two system ,the UDAV-1 and RBU-1000,Both the system tend to divert and destroy the incoming torpedo. The ASW team on board the Russian Destroyer would take acoustic information , determine the weapon position through triangulation and conduct a quick target motion analysis(TMA) ,They would then launch their Depth Bombs from the RBU-1000 into the path of the torpedo ,The goal being destruction ,but at least causing the torpedo to break homing lock thus allowing the ship time to escape before the torpedoes reacquire their target , A much more robust capability to destroy attacking weapons has been deployed with the UDAV-1 MLRS, The UDAV-1 has several payloads that are fired from a 10 barreled launcher with a maximum range of 3000 m. It launches acoustic decoys that seduces the incoming weapons away from the target and break its homing lock, . The acoustic decoys then draw the incoming weapon towards a drifting barrage of acoustically fused programmable depth bombs. These depth bombs would then detonate in an attempt to destroy the HWT. The UDAV-1 is integrated with the ship ASW system to determine the optimum placement of the decoys and hard kill weapons .The Russian system does has its drawback ,including command & control situational awareness ,and ship impact ,The footprint required for the UDAV-1 its rocket magazine and associated infrastructure would be considerable and at best could be deployed aboard large Surface Combatant, But is addressed partially by its inherent multipurpose capability in a 300mm rocket that can deploy ASW munitions if desired ,It does have some capability to defeat Straight Runners and even Wake Homers depending on its location and firing arc.
Number of barrels 10
Firing range, m 3000
Submarine engagement depth, m 600
Modes of firing single, salvo, pre-set
Rocket calibre, mm 300
Rocket length, mm 2200
Reaction time, sec 15
Hit probability with one salvo:
of straight-incoming torpedo 0.9
of homing torpedo 0.76
) de origen ruso (o derivado).
3. The Hard Kill Option
In more recent years, navies have sought to develop a suite of integrated torpedo countermeasures that could automatically detect incoming torpedoes, deploy decoys or jammers to seduce or confuse them (the "soft kill" method), and if necessary, deploy anti-torpedo systems that could destroy them (the "hard kill" method). Examples of these efforts include the European SLAT (Systeme de Lutte Anti-Torpille) and the US-UK Surface Ship Torpedo Defense (SSTD) system.
The most difficult aspect of these kinds of programs has invariably been the hard kill element. One might wonder why it is tough to destroy an incoming torpedo. After all, we have developed the means to destroy supersonic sea skimming missiles, ballistic missiles, even satellites moving in orbit at 18,000 mph.
The answer: it is a fire control problem. Fire control depends on accurately predicting the position of an incoming weapon at the time of intercept by the defending projectile. That said, the detect to engage sequence for an underwater weapon is vastly more complex than that for airborne missiles. The ocean environment makes it significantly more difficult to receive and process data at a sufficiently high fidelity because of the speed at which information can be transferred underwater. Propagation speeds (radio frequency or infra-red signals in the air versus acoustic signals in the water) are nearly 200,000 times slower, so information is received significantly more slowly for a torpedo than for an airborne threat.
The development of an effective hard kill anti-torpedo system in the US Navy has been long and tortuous, evolving from the aforementioned US-UK SSTD program of late 1988 into what may eventually be achieved with the WSQ-11 Tripwire in fiscal year (FY) 2011. It is worthy of note, in comparison, that the Russian UDAV-1/RPK-5 Leevyen (Heavy Rain) or RBU-10000/12000, which combines a torpedo defense system of acoustic decoys, depth charges suspended by buoys, and explosives, has been around since 1989. The Israeli Scutter/Torbuster is another emerging system.
One unique system that has been under consideration came out of the DARPA Water Hammer mine countermeasures program in 2005. This would use explosives to generate a low frequency acoustic pulse in a sequence of shock tubes, which would in turn focus, amplify, and direct the pulse into the surrounding water over a narrow bearing, thereby creating a high pressure (around 2,000 psi) directional shock wave. This pulse could not only disrupt mines but would probably disrupt or destroy incoming torpedoes.
. De todas maneras me parece que las incluiré (si caben )... como último recurso.
« Grâce au SLAT, l'équipage est capable de détecter et d'analyser les bruits émis par une torpille. Une fois celle-ci reconnue et sa route calculée, on peut déterminer très rapidement une solution à adopter. Sur ce point le Forbin bénéficie de moyens d'autoprotection efficaces : des lanceurs situés de part et d'autre de la frégate ; des leurres destinés à déjouer l'attaque adverse... Au delà et si malgré les leurres et le système de brouillage, la torpille n'est pas déviée, des torpilles légères MU90 peuvent être déployées. Le système de direction, situé au CO permet de la guider », explique la Marine nationale
The Counter-Torpedo Detection/ Classification/Localization (DCL) system will provide a technical design package and advanced design models for a high-frequency array. It will also provide torpedo detection and tracking algorithms for salvo engagements of up to four threat torpedoes simultaneously.
[...]
Demonstrating the Promise
In late March/early April 2006, the Navy showed the art of the possible in advanced DCL capabilities. With the USS Cleveland (LPD-7) serving as test platform, the Navy and a team headed by Ultra Electronics Ocean Systems (a U.S. subsidiary of the British firm, Ultra Electronics, which cooperatively develops torpedo defense systems for the U.S. Navy and the Royal Navy) demonstrated capabilities far in excess of what was expected at this stage in the system’s development.
“They were asked to look at salvos of up to two torpedoes,” Capt. Mark Bock, then-program manager for Undersea Defensive Warfare Systems in PEO Submarines, commented in a published interview after the tests were completed. However, instead of showing a capability against just two simultaneous torpedoes in salvo, using passive and active sources the Ultra Torpedo Recognition by Active and Passive Reconnaissance (TRAPR) DCL detected, tracked, alerted, and discriminated numerous torpedoes (as many as five launched simultaneously) in six salvoes that approached Cleveland at various geometries and speeds. At streaming speeds approaching 20 knots, the system detected the threat torpedoes – both electric and thermal-propulsion weapons – at ranges far in excess of what had been previously possible. And it did so with significantly few false alarms – on the order of one in 19 hours in passive mode and 15 false alarms (seven of which occurred together at the same time during a ship-turn into shallow water) in nine hours in active mode.
ATC-1 (Acoustic Torpedo Countermeasures-1) is a towed decoy, developed to counter modern, high-speed acoustic-homing active/passive torpedoes. It generates and transmits strong acoustic signals which are accepted as a legitimate target by attacking torpedoes which home in on the decoy and attack and reattack until its power source is exhausted and it sinks.The ATC-1 does not restrict the speed or manoeuvrability of the towing ship. Lightweight, compact and reliable, it is simple to install and requires a minimum of deck and below deck space.Compatible with a wide range of both naval and merchant vessels, from fast missile boats, corvettes, frigates and destroyers to cargo ships and tankers, the ATC-1 has been designed, built and tested to MIL-E-16400. The decoy does not interfere with other systems on board, and is not affected by them. Optimal vessel protection is ensured by a frequency range that covers all existing homing heads.The ATC-1 features a towed body, together with winch, launch and recovery units weighing a total of 1,325 kg. Also on board the ship is an electronics cabinet weighing 190 kg and a remote-control unit weighing 10 kg, neither of which requires much space. The manufacturer claims that a single operator is required for the system.The towed body consists of three sections:the nose assembly incorporating the towpoint containing a watertight member which absorbs the mechanical load of the tow cablethe transducer assemblythe tail assembly incorporating stabilising fins and a shroud ring which regulates the movement of the towed body through the water
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). , si monocasco, pues monocasco, y en este caso, pues multicasco.
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, esperamos que disfruten un poco de nuestros "delirios navales"
RGSS escribió:Y también muchas gracias por la otra parte
Saludos
PS:disculpen el gran formato de las imagenes que descomponen un poco el foro......
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