A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several roles.
In naval terminology, a destroyer is a fast, maneuverable, long-endurance warship intended to escort larger vessels in a fleet, convoy, or battle group and defend them against powerful short-range attackers. They were originally developed in 1885 by Fernando Villaamil for the Spanish Navy as a defense against torpedo boats, and by the time of the Russo-Japanese War in 1904, these "torpedo boat destroyers" (TBDs) were "large, swift, and powerfully armed torpedo boats designed to destroy other torpedo boats". Although the term "destroyer" had been used interchangeably with "TBD" and "torpedo boat destroyer" by navies since 1892, the term "torpedo boat destroyer" had been generally shortened to simply "destroyer" by nearly all navies by the First World War.
An anti-ship missile (AShM) is a guided missile that is designed for use against ships and large boats. Most anti-ship missiles are of the sea skimming variety, and many use a combination of inertial guidance and active radar homing. A large number of other anti-ship missiles use infrared homing to follow the heat that is emitted by a ship; it is also possible for anti-ship missiles to be guided by radio command all the way.
The Aegis Combat System is an American integrated naval weapons system, which uses computers and radars to track and guide weapons to destroy enemy targets. It was developed by the Missile and Surface Radar Division of RCA, and it is now produced by Lockheed Martin.
The Spruance-class destroyer was developed by the United States to replace the many World War II–built Allen M. Sumner- and Gearing-class destroyers, and was the primary destroyer built for the United States Navy during the 1970s and 1980s. It was named in honor of U.S. Navy Admiral Raymond A. Spruance, who successfully led major naval battles in the Asiatic-Pacific Theater during World War II such as the Battle of Midway and the Battle of the Philippine Sea.
A vertical launching system (VLS) is an advanced system for holding and firing missiles on mobile naval platforms, such as surface ships and submarines. Each vertical launch system consists of a number of cells, which can hold one or more missiles ready for firing. Typically, each cell can hold a number of different types of missiles, allowing the ship flexibility to load the best set for any given mission. Further, when new missiles are developed, they are typically fitted to the existing vertical launch systems of that nation, allowing existing ships to use new types of missiles without expensive rework. When the command is given, the missile flies straight up far enough to clear the cell and the ship, then turns on to the desired course.
The Ticonderoga class of guided-missile cruisers is a class of warships in the United States Navy, first ordered and authorized in the 1978 fiscal year. The class uses passive phased-array radar and was originally planned as a class of destroyers. However, the increased combat capability offered by the Aegis Combat System and the AN/SPY-1 radar system, together with the capability of operating as a flagship, were used to justify the change of the classification from DDG to CG shortly before the keels were laid down for Ticonderoga and Yorktown.
The Zumwalt-class destroyer is a class of three United States Navy guided-missile destroyers designed as multi-mission stealth ships with a focus on land attack. It is a multi-role class that was designed with a primary role of naval gunfire support and secondary roles of surface warfare and anti-aircraft warfare. The class design emerged from the DD-21 "land attack destroyer" program as "DD(X)" and was intended to take the role of battleships in meeting a congressional mandate for naval fire support. The ship is designed around its two Advanced Gun Systems (AGS), turrets with 920 round magazines, and unique Long Range Land Attack Projectile (LRLAP) ammunition. LRLAP procurement was canceled, rendering the guns unusable, so the Navy re-purposed the ships for surface warfare. Starting in 2023, the Navy will remove the AGS from the ships and replace them with hypersonic missiles.
The "Kolkata class" (Project 15A) are a class of stealth guided-missile destroyers constructed for the Indian Navy. The class comprises three ships – Kolkata, Kochi and Chennai, all of which were built by Mazagon Dock Limited (MDL) in India, and are the largest destroyers to be operated by the Indian Navy. Due to delays in construction and sea trials, the initial commissioning date of the first ship of the class was pushed back from 2010 to 2014.
INS Trishul (F43) is the second frigate of the Talwar class of the Indian Navy. Trishul, the guided missile frigate, joined the arsenal of Indian Navy in 2003. The ship was commissioned by the then Flag Officer Commanding-in-Chief, Western Naval Command Vice Admiral Arun Prakash at St. Petersburg, Russia on 25 June 2003. It has a complement of 32 officers and 228 sailors. In contrast to the lead ship INS Talwar, the sea trials of Trishul were considerably shortened as the ship performed well. Trishul arrived in Mumbai on 23 September 2003.
The Sejong the Great-class destroyers, also known as KDX-III, are three guided-missile destroyers of the Republic of Korea Navy (ROKN).
INS Kolkata is the lead ship of the Kolkata-class stealth guided-missile destroyers of the Indian Navy. Named after an Indian city of Kolkata ,she was constructed at Mazagon Dock Limited (MDL), and was handed over to the navy on 10 July 2014 after completing her sea trials. The ship was officially commissioned by Prime Minister Narendra Modi in a ceremony held on 16 August 2014.
ORP Warszawa was a large guided missile destroyer of the Polish Navy, one of the last ships of the modified Kashin class.
INS Chennai (D65) is the third and last ship of the Kolkata-class stealth guided missile destroyers of the Indian Navy. She was constructed by the Mazagon Dock Limited (MDL) at Mumbai. On 17 April 2017, INS Chennai was dedicated to the city of Chennai in presence of then Chief Minister of Tamil Nadu, K. Palaniswamy.
The Visakhapatnam-class destroyers, also classified as the P-15 Bravo class, or simply P-15B, is a class of guided-missile destroyers currently being built for the Indian Navy (IN). The Visakhapatnam class is an upgraded derivative of its predecessor, the Kolkata class, with improved features of stealth, automation and ordnance.
Next Generation Missile Vessels (NGMVs) are a planned class of anti-surface warfare corvettes for the Indian Navy. Under this programme the Indian Navy intends to acquire six advanced missile vessels. Ships in this class will be armed with Anti-ship missile or Land-attack missile like BrahMos. Ships under this class will feature advanced stealth features like a low radar cross section (RCS), infrared, acoustic and magnetic signatures.
The Maya class of guided-missile destroyers in the Japan Maritime Self-Defense Force is a modified version of the Atago class, with an updated Aegis Combat System and electric propulsion system. Maya was commissioned on March 19, 2020. Haguro was commissioned on March 19, 2021.
Hangzhou(136) is a Type 956E destroyer of the People's Liberation Army Navy.
The DDG(X) or Next-Generation Guided-Missile Destroyer program of the United States Navy aims to develop a class of surface combatants to succeed 22 Flight II Ticonderoga-class cruisers and 28 Flight I/II Arleigh Burke-class destroyers. The program is the culmination of the Large Surface Combatant (LSC) initiative that followed the cancellation of CG(X) and curtailing of the procurement of the Zumwalt-class destroyers. The ships will become the principal large surface combatants of the U.S. Navy; compared to their predecessors, they will incorporate more powerful sensors and have more room and weight margin for growth.
Indian Navy 