The Type 2043 is a hull-mounted active / passive search sonar, the Type 2082 a passive intercept and ranging sonar, and the Type 2046 a towed array sonar operating at very low frequency providing a passive search capability.
32.
Compared to the Type 093, the Type 095 will have a more advanced nuclear reactor, VLS tubes and greater number of advanced sensors such as new active / passive flank array sonar and low and high frequency towed sonar array.
33.
Potentially owing to Chinese deficiencies in anti-submarine warfare ( ASW ), the ship is expected to carry various undersea warfare systems such as towed array sonar, variable depth sonar, towed torpedo decoys, and active torpedo defenses.
34.
Late in her career, " Matapan " also undertook testing of an alternative Towed Array Sonar, Type 2031, which offered the improved performance of the Type 2016, without the cost and space needs of the hull mounted type.
35.
Work began to procure through competitive tendering for three sets of ultra-low-frequency towed-array sonars ( from either ATLAS Elektronik of Germany or US-based L-3 Communications / Ocean Systems ) for installation on board these three corvettes.
36.
Austal USA submitted a modified " Independence "-class ship, adding permanently installed systems like a towed array sonar, torpedoes, vertical launch anti-submarine rockets, and aviation capability to support the MH-60 helicopter in place of mission modules.
37.
The SSC shall have an improved 3D air defense radar, air defense decoys, better electronic warfare system, over-the-horizon anti-ship missiles, multi-function towed array sonar, torpedo defenses, additional armor, and displace less than Flight 0 vessels.
38.
"O'Brien " underwent an extensive overhaul and received major weapon systems improvements in 1988 including the Mk 41 Vertical Launch System ( VLS ) for the Tomahawk cruise missile, the SQR-1 tactical towed array sonar system and the LAMPS MK III helicopter system.
39.
Six ships were modernised in the 1970s as the Project 61M or 61MP ( Kashin-Mod ), by being fitted with four SS-N-2C Styx anti-ship missiles, new towed-array sonar, a raised helipad and four close range AK-630 Gatling guns.
40.
The ship's armament was replaced by a single 40 mm Bofors gun and two 12.7 mm machine guns, while the ship's stern was rebuilt to accommodate a hoist for a variable depth sonar, which was used to test various active and passive towed array sonars.
