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CUVX Design – VT Team 2 Page 28• Phalanx Close-In Weapons System (CIWS) provides defense against low altitude ASCMs. It is ahydraulically driven 20 mm gatling gun capable of firing 4500 rounds per minute. CIWS magazinecapacity is 1550 rounds of tungsten ammunition. CIWS is computer controlled to automatically correctaim errors. Phalanx Surface Mode (PSUM) incorporates its side mounted Forward Looking InfraredRadar (FLIR) to engage low, slow or hovering aircraft and surface craft.• Infrared Search and Track (IRST) is a shipboard integrated sensor designed to detect and report low flyingASCMs by their heat plumes. IRST scans the horizon +/- a few degrees but can be manually changed tosearch higher. It provides accurate bearing, elevation angle, and relative thermal intensity readings.• The AAW goal missile system is the ESSM. ESSM (Evolved Sea Sparrow Missiles) are high speed andacceleration air-to-air missiles with high explosive warheads. They are short range missiles intended toprovide self-protection for surface ships. They can engage and provide defense against a variety ofASCMs and aircraft. They are capable against low observable highly maneuverable missiles. An ESSMquad-pack fits in a single VLS cell, providing 32 missiles total in each of two 4-cell MK41 VLS halves.• Vertical Launching System (VLS) is a fixed, vertical, multi-missile storage and firing system. Itsimultaneously supports multiple warfighting capabilities, including AAW, ASW, SSD, SW, and ASuW.Simultaneous preparation of missiles in each half of launcher module allows for fast reaction to multiplethreats with concentrated, continuous firepower.• AN/SPQ-9B Radar also supports the ESSM. Its most important feature is the ability to detect surfaceskimming ASCMs. It provides cueing to ship self defense systems. It may also function as the primarysurface search radar.• Rolling Airframe Missile (RAM) is the threshold missile. It is cued from SSDS. RAM is a self containedpackage. It can use Active Optical Target Detector (AOTD) for improved effectiveness in presence ofaerosols. RAM also features Infrared Modular Update (IRMU) to provide capability against non-RFradiating threats. It is comprised of the GMLS (launching system) and GMRP (round pack). RAM iseffective and lethal against most current ASCMs. Its capability against LAMPS, aircraft, and surfacetargets is being developed.Table 18. AAW System AlternativesAAW System Alternatives Goal ThresholdSSDS MK2 MOD2 X XAN/SPS-49A(V)1 Air Search Radar X XAN/SPS-73(V)12 Surface Search RadarXAN/SLQ 32A(V)2 Electronic Warfare System X XCentralized ID Friend or Foe (CIFF) X XMk36 Decoy Launching System (DLS) X XCombat DF X XIRST X XCIWS Mk15 BLK 1B X XESSM w/ 2x4 cell Peripheral MK 41 VLS XMk91 MFCSXAN/SPQ-9B RadarXRAMX3.2.6.3 ASUWCUVX ASUW trade-off alternatives both include LAMPS, Penguin Missiles, two MK 46 Mod 1 30mmmachine guns, two MK 26 Mod 17 .50 cal. machine guns, and small arms as listed in Table 19. The goal ASuWsystem has 4 LAMPS. The threshold ASuW system has only 2 LAMPS. Specific sub-system descriptions are asfollows:• SH-60 Seahawk can perform ASW, ASUW, search and rescue, SPECOPS, and cargo lift. It also deployssonobuoys and torpedoes and extends ship’s radar capabilities. It has a retractable in-flight fueling probefor prolonged loitering time. Self defense is provided by two 7.62mm machine guns. It is capable ofcarrying and launching AGM-114 Hellfire missiles,AGM-119 Penguin missiles, and Mk46 or Mk50torpedoes.• The Penguin Missile is a helicopter launched anti-ship missile. It can operate in “Fire and Forget” modeto allow multiple target acquisition.
CUVX Design – VT Team 2 Page 29Table 19. ASUW System AlternativesASuW System Alternatives Goal ThresholdAN/SPS – 73(V)12 Surface Search Radar X XLAMPS MK3 SH-60 Seahawk Helo 4 2AGM-119 Penguin Missiles X XMK 46 Mod 1 30mm Machine Gun 2 2MK 26 Mod 17 .50 Cal Machine Guns 2 2Small arms X X3.2.6.4 ASWCUVX ASW systems include LAMPS MK3 SH-60 Seahawk Helo, MK50 Torpedoes, SSTD (Surface ShipTorpedo Defense), AN/SLQ-25 NIXIE, and SVTT (Surface Vessel Torpedo Tube) as listed in Table 20. Specificsub-system descriptions are as follows:• The Mk 50 Torpedo is an advanced lightweight torpedo used against fast, deep-diving, sophisticatedsubmarines. It can be launched from all ASW aircraft and ship torpedo tubes.• Surface Ship Torpedo Defense (SSTD) includes countermeasures and acoustic sensors to detect, track, anddivert incoming torpedoes. It provides torpedo defense against all threatening torpedoes. SSTD consistsof detection, control, and counter-weapon subsystems. A layered-attrition approach utilizes outer(hardkill) and inner (softkill) subsystems for defense.• AN/SLQ-25 NIXIE is a tow-behind decoy that employs an underwater acoustic projector. It providesdeceptive countermeasures against acoustic homing torpedoes. NIXIEs can be used in pairs or as singles.• The MK 32 Surface Vessel Torpedo Tube (SVTT) provides an ASW launching system whichpneumatically launches both MK-46 and MK-50 torpedoes. SVTT is capable of stowing and launchingup to three torpedoes under local control or remote control from the ASW fire control system.Table 20. ASW System AlternativesASW System Alternatives Goal ThresholdLAMPS MK3 SH-60 Seahawk Helo 4 2MK50 Torpedoes X XSSTD (Surface Ship Torpedo Defense) X XAN/SLQ-25 NIXIE X XSVTT (Surface Vessel Torpedo Tube) 2 23.2.6.5 SEWElectronic Warfare systems include AN/SLQ-32 and DLS. Descriptions of the specific sub-systems are asfollows:• AN/SLQ-32 is a sensor system that provides early detection and identification of threats. It serves as theelectronic eyes of the SSDS. It also provides radar jamming.• The Decoy Launching System (DLS) launches chaff at an angle of either 45 or 60 degrees fromhorizontal. The chaff can be launched to confuse a variety of missiles coming from any angle.3.2.6.6 MCMMine Countermeasures (MCM) is defined as any activity used to prevent or reduce the danger of enemy mines.Passive countermeasures operate by reducing a ship’s acoustic and magnetic signatures, while activecountermeasures include mine-hunting and minesweeping.CUVX MCM systems include Mine Avoidance Sonar (MAS) and degaussing. Descriptions of the specificsub-systems are as follows:• Mine Avoidance Sonar determines the type and presence of mines. MAS is an active MCM that detectsmines and allows CUVX to avoid dangerous areas.
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