Destroyer

Fernando Villaamil, credited as the inventor of the destroyer, died in action during the Battle of Santiago de Cuba in 1898

The introduction of the Whitehead torpedo revolutionized naval warfare. Torpedo's general profile: A. war-head B. air-flask. B'. immersion-chamber CC'. after-body C. engine-room DDDD. drain-holes E. shaft-tube F. steering-engine G. bevel-gear box H. depth-index I. tail K. charging and stop-valves L. locking-gear M. engine bed-plate P. primer-case R. rudder S. steering-rod tube T. guide-stud UU. propellers V. valve-group W. war-nose Z. strengthening-band

The emergence and development of the destroyer was related to the invention of the self-propelled torpedo in the 1860s. A navy now had the potential to destroy a superior enemy battle fleet using steam launches to fire torpedoes. Cheap, fast boats armed with torpedoes called torpedo boats were built and became a threat to large capital ships near enemy coasts. The first seagoing vessel designed to launch the self-propelled Whitehead torpedo was the 33-ton HMS Lightning in 1876.[7] She was armed with two drop collars to launch these weapons, these were replaced in 1879 by a single torpedo tube in the bow. By the 1880s, the type had evolved into small ships of 50–100 tons, fast enough to evade enemy picket boats.

At first, the threat of a torpedo boat attack to a battle fleet was considered to exist only when at anchor; but as faster and longer-range torpedoes were developed, the threat extended to cruising at sea. In response to this new threat, more heavily gunned picket boats called "catchers" were built which were used to escort the battle fleet at sea. They needed significant seaworthiness and endurance to operate with the battle fleet, and as they necessarily became larger, they became officially designated "torpedo boat destroyers", and by the First World War were largely known as "destroyers" in English. The anti-torpedo boat origin of this type of ship is retained in its name in other languages, including French (contre-torpilleur), Italian (cacciatorpediniere), Portuguese (contratorpedeiro), Czech (torpédoborec), Greek (antitorpiliko,αντιτορπιλικό), Dutch (torpedobootjager) and, up until the Second World War, Polish (kontrtorpedowiec, now obsolete).[8]

Once destroyers became more than just catchers guarding an anchorage, it was realized that they were also ideal to take over the role of torpedo boats themselves, so they were fitted with torpedo tubes as well as guns. At that time, and even into World War I, the only function of destroyers was to protect their own battle fleet from enemy torpedo attacks and to make such attacks on the battleships of the enemy. The task of escorting merchant convoys was still in the future.

Early designs

The Imperial Japanese Navy's Kotaka (1887)

An important development came with the construction of HMS Swift in 1884, later redesignated TB 81.[9] This was a large (137 ton) torpedo boat with four 47 mm quick-firing guns and three torpedo tubes. At 23.75 knots (43.99 km/h; 27.33 mph), while still not fast enough to engage enemy torpedo boats reliably, the ship at least had the armament to deal with them.

Another forerunner of the torpedo boat destroyer was the Japanese torpedo boat[10] Kotaka (Falcon), built in 1885.[11] Designed to Japanese specifications and ordered from the Isle of Dogs, London Yarrow shipyard in 1885, she was transported in parts to Japan, where she was assembled and launched in 1887. The 165-foot (50 m) long vessel was armed with four 1-pounder (37 mm) quick-firing guns and six torpedo tubes, reached 19 knots (35 km/h), and at 203 tons, was the largest torpedo boat built to date. In her trials in 1889, Kotaka demonstrated that she could exceed the role of coastal defense, and was capable of accompanying larger warships on the high seas. The Yarrow shipyards, builder of the parts for Kotaka, "considered Japan to have effectively invented the destroyer".[12]

The German aviso Greif, launched in 1886, was designed as a "torpedojäger" (torpedo hunter), intended to screen the fleet against attacks by torpedo boats. The ship was significantly larger than torpedo boats of the period, displacing some 2,266 t (2,230 long tons), with an armament of 10.5 cm (4.1 in) guns and 3.7 cm (1.5 in) Hotchkiss revolver cannon.[13]

Torpedo gunboat

HMS Spider, an early model of torpedo gunboat

The first vessel designed for the explicit purpose of hunting and destroying torpedo boats was the torpedo gunboat. Essentially very small cruisers, torpedo gunboats were equipped with torpedo tubes and an adequate gun armament, intended for hunting down smaller enemy boats. By the end of the 1890s torpedo gunboats were made obsolete by their more successful contemporaries, the torpedo boat destroyers, which were much faster.

The first example of this was HMS Rattlesnake, designed by Nathaniel Barnaby in 1885, and commissioned in response to the Russian War scare.[14] The gunboat was armed with torpedoes and designed for hunting and destroying smaller torpedo boats. Exactly 200 feet (61 m) long and 23 feet (7.0 m) in beam, she displaced 550 tons. Built of steel, Rattlesnake was un-armoured with the exception of a ​³⁄₄-inch protective deck. She was armed with a single 4-inch/25-pounder breech-loading gun, six 3-pounder QF guns and four 14-inch (360 mm) torpedo tubes, arranged with two fixed tubes at the bow and a set of torpedo dropping carriages on either side. Four torpedo reloads were carried.[14]

A number of torpedo gunboat classes followed, including the Grasshopper class, the Sharpshooter class, the Alarm class and the Dryad class – all built for the Royal Navy during the 1880s and the 1890s.

Fernando Villaamil, second officer of the Ministry of the Navy of Spain, designed his own torpedo gunboat to combat the threat from the torpedo boat.[15] He asked several British shipyards to submit proposals capable of fulfilling these specifications. In 1885 the Spanish Navy chose the design submitted by the shipyard of James and George Thomson of Clydebank. Destructor (Destroyer in Spanish) was laid down at the end of the year, launched in 1886, and commissioned in 1887.

Spanish warship Destructor in 1890, the first destroyer ever built

She displaced 348 tons, and was the first warship[16] equipped with twin triple-expansion engines generating 3,784 ihp (2,822 kW), for a maximum speed of 22.6 knots (41.9 km/h),[17] which made her one of the faster ships in the world in 1888.[18] She was armed with one 90 mm (3.5 in) Spanish-designed Hontoria breech-loading gun,[1] four 57 mm (2.2 in) (6-pounder) Nordenfelt guns, two 37 mm (1.5 in) (3-pdr) Hotchkiss cannons and two 15-inch (38 cm) Schwartzkopff torpedo tubes.[17] The ship carried three torpedoes per tube.[1] She was manned by a crew of 60.[17]

In terms of gunnery, speed and dimensions, the specialised design to chase torpedo boats and her high seas capabilities, Destructor was an important precursor to the torpedo boat destroyer.[19]

HMS Havock, the first modern destroyer, commissioned in 1894

The first classes of ships to bear the formal designation "torpedo boat destroyer" (TBD) were the Daring-class of two ships and Havock-class of two ships of the Royal Navy.

Early torpedo gunboat designs lacked the range and speed to keep up with the fleet they were supposed to protect. In 1892, the Third Sea Lord, Rear Admiral John "Jacky" Fisher ordered the development of a new type of ships equipped with the then novel water-tube boilers and quick-firing small calibre guns. Six ships to the specifications circulated by the Admiralty were ordered initially, comprising three different designs each produced by a different shipbuilder: HMS Daring and HMS Decoy from John I. Thornycroft & Company, HMS Havock and HMS Hornet from Yarrows, and HMS Ferret and HMS Lynx from Laird, Son & Company.[20]

These torpedo boat destroyers all featured a turtleback (i.e. rounded) forecastle that was characteristic of early British TBDs. HMS Daring and HMS Decoy were both built by Thornycroft, displaced 260 tons (287.8 tons full load) and were 185 feet in length. They were armed with one 12-pounder gun and three 6-pounder guns, with one fixed 18-in torpedo tube in the bow plus two more torpedo tubes on a revolving mount abaft the two funnels. Later the bow torpedo tube was removed and two more 6-pounder guns added instead. They produced 4,200 hp from a pair of Thornycroft water-tube boilers, giving them a top speed of 27 knots, giving the range and speed to travel effectively with a battle fleet. In common with subsequent early Thornycroft boats, they had sloping sterns and double rudders.[21]

The French navy, an extensive user of torpedo boats, built its first torpedo boat destroyer in 1899, with the Durandal-class 'torpilleur d'escadre'. The United States commissioned its first torpedo boat destroyer, USS Bainbridge, Destroyer No. 1, in 1902 and by 1906 there were 16 destroyers in service with the US Navy.[22]

Subsequent improvements

Builders' plans for the British Charger class, built 1894–95.

Torpedo boat destroyer designs continued to evolve around the turn of the 20th century in several key ways. The first was the introduction of the steam turbine. The spectacular unauthorized demonstration of the turbine powered Turbinia at the 1897 Spithead Navy Review, which, significantly, was of torpedo boat size, prompted the Royal Navy to order a prototype turbine powered destroyer, HMS Viper of 1899. This was the first turbine warship of any kind and achieved a remarkable 34 knots (63 km/h) on sea trials. By 1910 the turbine had been widely adopted by all navies for their faster ships.[7]

The second development was the replacement of the torpedo-boat-style turtleback foredeck by a raised forecastle for the new River-class destroyers built in 1903, which provided better sea-keeping as well as more space below deck.

The first warship to use only fuel oil propulsion was the Royal Navy's torpedo boat destroyer HMS Spiteful, after experiments in 1904, although the obsolescence of coal as a fuel in British warships was delayed by its availability.[23][24] Other navies also adopted oil, for instance the USN with the Paulding class of 1909. In spite of all this variety, destroyers adopted a largely similar pattern. The hull was long and narrow, with a relatively shallow draft. The bow was either raised in a forecastle or covered under a turtleback; underneath this were the crew spaces, extending ​¹⁄₄ to ​¹⁄₃ the way along the hull. Aft of the crew spaces was as much engine space as the technology of the time would allow: several boilers and engines or turbines. Above deck, one or more quick-firing guns were mounted in the bows, in front of the bridge; several more were mounted amidships and astern. Two tube mountings (later on, multiple mountings) were generally found amidships.

Between 1892 and 1914 destroyers became markedly larger: initially 275 tons with a length of 165 feet (50 m) for the Royal Navy's first Havock class of torpedo boat destroyers,[25] up to the First World War with 300-foot (91 m) long destroyers displacing 1000 tons was not unusual. However, construction remained focused on putting the biggest possible engines into a small hull, resulting in a somewhat flimsy construction. Often hulls were built of high-tensile steel[7] only 1/8 in thick.

By 1910 the steam-driven displacement (that is, not hydroplaning) torpedo boat had become redundant as a separate type. Germany nevertheless continued to build such boats until the end of World War I, although these were effectively small coastal destroyers. In fact Germany never distinguished between the two types, giving them pennant numbers in the same series and never giving names to destroyers. Ultimately the term torpedo boat came to be attached to a quite different vessel – the very fast hydroplaning motor driven MTB.

Navies originally built torpedo boat destroyers to protect against torpedo boats, but admirals soon appreciated the flexibility of the fast, multi-purpose vessels that resulted. Vice-Admiral Sir Baldwin Walker laid down destroyer duties for the Royal Navy:[26]

• screening the advance of a fleet when hostile torpedo craft are about
• searching a hostile coast along which a fleet might pass
• watching an enemy's port for the purpose of harassing his torpedo craft and preventing their return
• attacking an enemy fleet

Early destroyers were extremely cramped places to live, being "without a doubt magnificent fighting vessels... but unable to stand bad weather".[27] During the Russo-Japanese War in 1904, the commander of the torpedo boat destroyer IJN Akatsuki[28][29][30] described "being in command of a destroyer for a long period, especially in wartime... is not very good for the health". Stating that he had originally been strong and healthy, he continued, "life on a destroyer in winter, with bad food, no comforts, would sap the powers of the strongest men in the long run. A destroyer is always more uncomfortable than the others, and rain, snow, and sea-water combine to make them damp; in fact, in bad weather there is not a dry spot where one can rest for a moment."[31]

The Japanese destroyer-commander finished with, "Yesterday I looked at myself in a mirror for a long time; I was disagreeably surprised to see my face thin, full of wrinkles, and as old as though I were fifty. My clothes (uniform) cover nothing but a skeleton, and my bones are full of rheumatism."[31]

In 1898, the US Navy officially classified USS Porter, a 175-foot (53 m) long all steel vessel displacing 165 tons, as a torpedo boat. However, her commander, LT. John C. Fremont, described her as "...a compact mass of machinery not meant to keep the sea nor to live in... as five sevenths of the ship are taken up by machinery and fuel, whilst the remaining two sevenths, fore and aft, are the crew's quarters; officers forward and the men placed aft. And even in those spaces are placed anchor engines, steering engines, steam pipes, etc. rendering them unbearably hot in tropical regions."[32]

Early combat

HMS Loyal, of the Laforey class

The torpedo boat destroyer's first major use in combat came during the Japanese surprise attack on the Russian fleet anchored in Port Arthur at the opening of the Russo-Japanese War on 8 February 1904.

Three destroyer divisions attacked the Russian fleet in port, firing a total of 18 torpedoes. However, only two Russian battleships, Tsesarevich and Retvizan, as well as the protected cruiser Pallada, were seriously damaged due to the proper deployment of torpedo nets. Tsesarevich, the Russian flagship, had her nets deployed, with at least four enemy torpedoes "hung up" in them,[33] and other warships were similarly saved from further damage by their nets.[34]

While capital ship engagements were scarce in World War I, destroyer units engaged almost continually in raiding and patrol actions. The first shot of the war at sea was fired on 5 August 1914 by a destroyer of the 2nd Flotilla, HMS Lance, in an engagement with the German auxiliary minelayer Königin Luise.

Destroyers were involved in the skirmishes that prompted the Battle of Heligoland Bight, and filled a range of roles in the Battle of Gallipoli, acting as troop transports and as fire-support vessels, as well as their fleet-screening role. Over 80 British destroyers and 60 German torpedo-boats took part in the Battle of Jutland, which involved pitched small-boat actions between the main fleets, and several foolhardy attacks by unsupported destroyers on capital ships. Jutland also concluded with a messy night action between the German High Seas Fleet and part of the British destroyer screen.

USS Wickes, a Wickes-class destroyer

The threat evolved by World War I with the development of the submarine, or U-boat. The submarine had the potential to hide from gunfire and close underwater to fire torpedoes. Early-war destroyers had the speed and armament to intercept submarines before they submerged, either by gunfire or by ramming. Destroyers also had a shallow enough draft that torpedoes would find it difficult to hit them.

HMS Badger was the first destroyer to successfully ram a submarine

The desire to attack submarines underwater led to rapid destroyer evolution during the war. They were quickly equipped with strengthened bows for ramming, and depth charges and hydrophones for identifying submarine targets. The first submarine casualty to a destroyer was the German U-19, rammed by HMS Badger on 29 October 1914. While U-19 was only damaged, the next month HMS Garry successfully sank U-18. The first depth-charge sinking was on 4 December 1916, when UC-19[35] was sunk by HMS Llewellyn.

The submarine threat meant that many destroyers spent their time on anti-submarine patrol. Once Germany adopted unrestricted submarine warfare in January 1917, destroyers were called on to escort merchant convoys. US Navy destroyers were among the first American units to be dispatched upon the American entry to the war, and a squadron of Japanese destroyers even joined Allied patrols in the Mediterranean. Patrol duty was far from safe; of the 67 British destroyers lost in the war, collisions accounted for 18, while 12 were wrecked.

At the end of the war, the state-of-the-art was represented by the British W class.

V-class destroyer, HMS Velox

The trend during World War I had been towards larger destroyers with heavier armaments. A number of opportunities to fire at capital ships had been missed during the War, because destroyers had expended all their torpedoes in an initial salvo. The British V and W classes of the late war had sought to address this by mounting six torpedo tubes in two triple mounts, instead of the four or two on earlier models. The 'V' and 'W's set the standard of destroyer building well into the 1920s.

The two Romanian destroyers Mărăști and Mărășești, on the other hand, had the greatest firepower of all destroyers in the world throughout the first half of the 1920s. This was largely due to the fact that, between their commissioning in 1920 and 1926, they retained the armament that they had while serving in the Italian Navy as scout cruisers (esploratori). When initially ordered by Romania in 1913, the Romanian specifications envisioned three 120 mm guns, a caliber which would eventually be adopted as the standard for future Italian destroyers. Armed with three 152 mm and four 76 mm guns after being completed as scout cruisers, the two warships were officially re-rated as destroyers by the Romanian Navy. The two Romanian warships were thus the destroyers with the greatest firepower in the world throughout much of the interwar period. As of 1939, when the Second World War started, their artillery, although changed, was still close to cruiser standards, amounting to nine heavy naval guns (five of 120 mm and four of 76 mm). In addition, they retained their two twin 457 mm torpedo tubes as well as two machine guns, plus the capacity to carry up to 50 mines.[36]

Fubuki-class destroyer, Uranami

The next major innovation came with the Japanese Fubuki class or 'special type', designed in 1923 and delivered in 1928. The design was initially noted for its powerful armament of six five-inch (127 mm) guns and three triple torpedo mounts. The second batch of the class gave the guns high-angle turrets for anti-aircraft warfare, and the 24-inch (61 cm) oxygen-fueled 'Long Lance' Type 93 torpedo. The later Hatsuharu class of 1931 further improved the torpedo armament by storing its reload torpedoes close at hand in the superstructure, allowing reloading within 15 minutes.

Most other nations replied with similar larger ships. The US Porter class adopted twin five-inch (127 mm) guns, and the subsequent Mahan class and Gridley classes (the latter of 1934) increased the number of torpedo tubes to 12 and 16 respectively.

France's Fantasque class, the fastest destroyer class ever built.

In the Mediterranean, the Italian Navy's building of very fast light cruisers of the Condottieri class prompted the French to produce exceptional destroyer designs. The French had long been keen on large destroyers, with their Chacal class of 1922 displacing over 2,000 tons and carrying 130 mm guns; a further three similar classes were produced around 1930. The Fantasque class of 1935 carried five 138 millimetres (5.4 in) guns and nine torpedo tubes, but could achieve speeds of 45 knots (83 km/h), which remains the record speed for a steamship and for any destroyer. The Italians' own destroyers were almost as swift, most Italian designs of the 1930s being rated at over 38 knots (70 km/h), while carrying torpedoes and either four or six 120 mm guns.

Germany started to build destroyers again during the 1930s as part of Hitler's rearmament program. The Germans were also fond of large destroyers, but while the initial Type 1934 displaced over 3,000 tons, their armament was equal to smaller vessels. This changed from the Type 1936 onwards, which mounted heavy 150 millimetres (5.9 in) guns. German destroyers also used innovative high-pressure steam machinery: while this should have helped their efficiency, it more often resulted in mechanical problems.

Once German and Japanese rearmament became clear, the British and American navies consciously focused on building destroyers that were smaller but more numerous than those used by other nations. The British built a series of destroyers (the A class to I class) which were about 1,400 tons standard displacement, had four 4.7-inch (119 mm) guns and eight torpedo tubes; the American Benson class of 1938 similar in size, but carried five 5-inch (127 mm) guns and ten torpedo tubes. Realizing the need for heavier gun armament, the British built the Tribal class of 1936 (sometimes called Afridi after one of two lead ships). These ships displaced 1,850 tons and were armed with eight 4.7-inch (119 mm) guns in four twin turrets and four torpedo tubes. These were followed by the J-class and L-class destroyers, with six 4.7-inch (119 mm) guns in twin turrets and eight torpedo tubes.

Anti-submarine sensors included sonar (or ASDIC), although training in their use was indifferent. Anti-submarine weapons changed little, and ahead-throwing weapons, a need recognized in World War I, had made no progress.

Later combat

USS McGowan, a Fletcher-class destroyer during World War II

During the 1920s and 1930s, destroyers were often deployed to areas of diplomatic tension or humanitarian disaster. British and American destroyers were common on the Chinese coast and rivers, even supplying landing parties to protect colonial interests.

By World War II the threat had evolved once again. Submarines were more effective, and aircraft had become important weapons of naval warfare; once again the early-war fleet destroyers were ill-equipped for combating these new targets. They were fitted with new light anti-aircraft guns, radar, and forward-launched ASW weapons, in addition to their existing dual-purpose guns, depth charges, and torpedoes. Increasing size allowed improved internal arrangement of propulsion machinery with compartmentation so ships were less likely to be sunk by a single hit.[7] In most cases torpedo and/or dual-purpose gun armament was reduced to accommodate new anti-air and anti-submarine weapons. By this time the destroyers had become large, multi-purpose vessels, expensive targets in their own right. As a result, casualties on destroyers were among the highest.

The need for large numbers of anti-submarine ships led to the introduction of smaller and cheaper specialized anti-submarine warships called corvettes and frigates by the Royal Navy and destroyer escorts by the USN. A similar programme was belatedly started by the Japanese (see Matsu-class destroyer). These ships had the size and displacement of the original torpedo boat destroyers that the contemporary destroyer had evolved from.

Polish destroyer ORP Błyskawica, currently preserved as a museum ship in Gdynia.

Some conventional destroyers were completed in the late 1940s and 1950s which built on wartime experience. These vessels were significantly larger than wartime ships and had fully automatic main guns, unit machinery, radar, sonar, and antisubmarine weapons such as the Squid mortar. Examples include the British Daring-class, US Forrest Sherman-class, and the Soviet Kotlin-class destroyers.

Some World War II–vintage ships were modernized for anti-submarine warfare, and to extend their service lives, to avoid having to build (expensive) brand-new ships. Examples include the US FRAM I programme and the British Type 15 frigates converted from fleet destroyers.

The advent of surface-to-air missiles and surface-to-surface missiles, such as the Exocet, in the early 1960s changed naval warfare. Guided missile destroyers (DDG in the US Navy) were developed to carry these weapons and protect the fleet from air, submarine and surface threats. Examples include the Soviet Kashin class, the British County class, and the US Charles F. Adams class.

21st century destroyers tend to display features such as large, slab sides without complicated corners and crevices to keep the radar cross-section small, vertical launch systems to carry a large number of missiles at high readiness to fire and helicopter flight decks and hangars.

•  Argentine Navy Operates four Almirante Brown-class destroyers and a single modified Type 42 destroyer.
•  Royal Australian Navy Operates two Hobart-class destroyers with one more to be commissioned. They are the first Australian warships to use the AEGIS Combat System and are based on Spain's Álvaro de Bazán-class destroyers.

A Chinese Navy Luyang III-class (Type 052D) destroyer

•  People's Liberation Army Navy Operates the Luyang I, Luyang II, Luyang III and Luzhou classes. The latter two are armed with long range air defense missiles, the indigenous HQ-9 and the Russian S-300 respectively. China also operates thirteen Luyang III-class destroyers, six Luda-class destroyers, two Luhu-class destroyers, and one Luhai-class destroyer.

The People's Liberation Army Navy operates the Sovremenny class, a class of large multi-purpose missile destroyers. They are powered by pressure-fired boilers, making them capable of speeds in excess of 30 knots (56 km/h). China has started building the Type 055 destroyer packed with 112 VLS, described to be of possessing a Universal Launch function. The VLS system integrated in this type of ship is said to be larger in volume compared to similarly dense VLS systems of the United States Ticonderoga-class cruiser and South Korea's Sejong the Great-class destroyer. The class of ships however lack an integrated electric propulsion (IEPS) and this facility is likely to be deployed on an upgraded series which would act as a development platform for new technologies to be deployed in the future.[37]

•  Republic of China Navy (Taiwan) Operates four Kidd-class destroyers, purchased from the United States.
•  Egyptian Navy Operates a single FREMM multipurpose frigate purchased from France, with the hull classification FFG for guided missile frigate.[38] Egypt also operates a single Z-class destroyer for training use.
•  French Navy Operates two Horizon-class frigates and operate new FREMM multipurpose frigates. These stealthy ships are armed with anti-ship missiles and Aster surface-to-air missiles. The French Navy also operates six Georges Leygues-class frigates and two Cassard-class frigates. The French Navy applies the term "first-class frigate" to Georges Leygues, Cassard, Horizon, and FREMM-class ships and uses the NATO hull classification symbol "D 6xx" to place them in the destroyer type.
•  German Navy Operates three Sachsen-class frigates and four Baden-Württemberg-class frigates. These ships are classified by Germany as frigates, but are destroyers in terms of size and strength, and are usually labeled as such by other navies.[39]
•  Hellenic Navy HS Velos (D-16), a Fletcher-class destroyer, remains ceremonially in commission due to her historical significance.

A Kolkata-class guided missile destroyer of the Indian Navy.

•  Indian Navy Operates three Kolkata-class destroyers. These ships are armed with Brahmos missiles, which have a range of 300 kilometres (190 mi), in the anti-ship role. (Barak-8) system is installed to counter airborne threats. Along with the Kolkata class, Indian Navy operates, the Delhi and Rajput-class destroyers. These destroyers also carry anti-submarine rockets and torpedoes. The destroyers have the capability to carry two Sea King helicopters. The Kolkata class will be augmented by the new P15B class of destroyers (Visakhapatnam-class destroyer) the construction of which was started in 2014.
•  Islamic Republic of Iran Navy Operates a single Moudge-class frigate. These ships are internationally regarded as frigates or destroyer escorts, but are classified as destroyers by Iran.[40]

Italian Horizon class destroyer Caio Duilio

•  Marina Militare Operates two Horizon-class frigates and operate new FREMM multipurpose frigates. These stealthy ships are armed with anti-ship missiles and Aster surface-to-air missiles. The Italian navy also operates two Durand de la Penne-class destroyers. Italy classifies the FREMM with the NATO designation of "F" for frigate.

Japan Maritime Self-Defense Force Akizuki

•  Japan Maritime Self-Defense Force Operates the Atago-class and Kongō-class destroyers which both employ the Aegis combat system. Japan also operates two Hatakaze-class destroyers, four Akizuki-class destroyers, five Takanami-class destroyers, nine Murasame-class destroyers, eight Asagiri-class destroyers, three Hatsuyuki-class destroyers, six Abukuma-class destroyers, and three Shimayuki-class destroyers for training use.
•  Republic of Korea Navy Operates several classes of destroyers including the Sejong the Great-class (KDX-III), the Chungmugong Yi Sun-shin-class (KDX-II) and Gwanggaeto the Great-class (KDX-I) destroyers. The KDX-III is equipped with the Aegis combat system, Goalkeeper CIWS, Hyunmoo cruise missile and the Hae Sung anti-ship missile.
•  Royal Moroccan Navy Operates a single FREMM multipurpose frigate.
•  Royal Netherlands Navy Operates four De Zeven Provincien-class frigates. These ships are classified by the Netherlands as frigates, but are destroyers in "all but name".[41]
•  Pakistan Navy Operates five Tariq-class destroyers purchased from the United Kingdom.
•  Polish Navy The Grom-class destroyer, ORP Blyskawica remains ceremonially in commission due to her historical significance.
•  Romanian Naval Forces Mărășești was classified as a destroyer by Romania until 2001, when she was reclassified as a frigate, but there was never a change in armament, and remains in her 2001 state.
•  Russian Navy Operate the Sovremenny class, a class of large multi-purpose missile destroyers. They are powered by pressure-fired boilers, making them capable of speeds in excess of 30 knots (56 km/h). Their armament consists of eight SS-N-22 Sunburn anti-ship missiles, launchers for SA-N-7 Gadfly anti-air missiles and two AK-130 twin-barreled 130 mm automatic naval guns which can fire laser-guided shells. While they also carry 533 mm torpedo tubes and RBU-6000 rocket launchers for use against submarines, their primary mission is to attack surface ships. Their anti-aircraft missiles have a surface attack mode, and both the 130 mm guns and the torpedoes are useful against ships at close range.

A Russian Navy Udaloy-class destroyer

The modern Udaloy-class destroyers of the Russian Navy can displace about 7,900 tonnes, can travel at 35 knots (65 km/h), and have a maximum range of 10,500 nmi (19,400 km) at 14 knots (26 km/h). The original class (Udaloy I) was designed for anti-submarine warfare, which can be seen in their two quadruple launchers of the Metel Anti-Ship Complex (SS-N-14), two quadruple 533 millimetres (21 in) launchers equipped with either the Type 53 torpedo on the Udaloy I class or RPK-2 Viyuga (SS-N-15) on the Udaloy II class, and the two RBU-6000 anti-submarine launchers. The Udaloy II class is Russia's only multipurpose destroyer. The armament of the class has been modified. The Metal Anti-Ship Complex is replaced with eight P-270 Moskit (SS-N-22 Sunburn) supersonic sea-skimming anti-ship missile. For air defense, each Udaloy is armed with four AK-630 CIWSs, mounted parallel to each other mid ship. They also have two Kashtan CIWSs, each capable of engaging six targets automatically by either its armament of two GSh-6-30 Gatling guns or four 9M311 (SA-N-11) surface-to-air missiles. Finally, 64 3K95 Kinzhal (SA-N-9) medium-range point defense SAMs can be fired from vertical launching system. Russia also operates a single Kashin-class destroyer.

•  Spanish Navy Operates five Álvaro de Bazán-class frigates. These ships are classified as frigates by Spain and carry the NATO hull classification symbol "F 1xx" for frigate, but are described destroyers by other navies.[42] The design of these ships were inspired by the United States's Arleigh Burke-class destroyers and carry the AEGIS Combat System.
•  Royal Thai Navy operates a single Cannon-class destroyer escort purchased from the United States for training use.

HMS Daring, a Type 45 guided missile destroyer of the Royal Navy.

•  Royal Navy Operates the Type 45, or Daring-class, stealth destroyer which displaces roughly 8,000 tonnes. Six ships of the class are operational. They are equipped with the UK variant of the Principal Anti-Air Missile System (PAAMS) and BAE Systems SAMPSON radar. The Royal Navy also operates a Type 82 destroyer for training use.
•  United States Navy Destroyers operate in support of carrier battle groups, surface action groups, amphibious groups and replenishment groups. As of 2019, the Navy has 67 active Arleigh Burke class guided missile destroyers (DDGs). They are multi-mission (anti-submarine, anti-aircraft and anti-surface warfare) surface combatants, with an emphasis on anti-surface warfare. The Navy also has two Zumwalt-class destroyers, one fully active and the second undergoing weapons integration. The Zumwalts are less capable than the Arleigh Burkes, with fewer missiles, no usable guns, and a less capable radar system.[43]

The addition of cruise missile launchers has greatly expanded the role of the destroyer in strike and land-attack warfare. As the expense of heavier surface combatants has generally removed them from the fleet, destroyer tonnage has grown (a modern Arleigh Burke-class destroyer has the same tonnage as a World War II light cruiser). Their anti-submarine role is handled primarily by their embarked helicopters, which in addition to anti-submarine warfare can also be used for maritime rescue and vertical replenishment.

Baden-Württemberg, an F125-class frigate of the German Navy; currently the biggest frigates worldwide. In size and role they are qualified as destroyers

 Royal Australian Navy is currently building three Hobart-class destroyers. These ships are to replace the aging Adelaide-class frigates. Their design is similar to that of the Arleigh Burke-class destroyer and the Álvaro de Bazán-class destroyer. They will also use the AEGIS Combat System. The first unit, HMAS Hobart, was commissioned on 23 September 2017.

 People's Liberation Army Navy is currently in the process of adding up to 18 ships of the Type 052D destroyer class. Serial construction is underway for at-least 6 of the larger and more powerful Type 055 destroyer, which at the current rate of production, should be complete by late 2019 or early 2020.

 French Navy is adding 8 FREMM multipurpose frigates to their fleet, while also negotiating plans to export a number of units to the Hellenic Navy and attempted to sell units to the Royal Canadian Navy.[44]

 German Navy is currently building four F125-class frigates. Although classified by Germany as frigates, they are destroyers in terms of size. They are to replace the aging Bremen-class frigates. The first unit, Baden-Württemberg, was planned to be commissioned in 2017 with "F" being the NATO hull, but was returned to the builder after problems were found.

In addition, six multi-mission surface combat ships are planned under the name 'Mehrzweckkampfschiff 180' (MKS 180), which will have destroyer-size and corresponding capabilities (length: 163m, displacement: 10,400 tons)[45]

 Indian Navy is constructing four Visakhapatnam-class destroyers, with first being commissioned in July 2021. It is an improved version of the Kolkata-class destroyers

 Islamic Republic of Iran Navy is currently adding four more Moudge-class frigates to its fleet. Iran is also building six Khalije Fars-class destroyers, these ships are to become the largest vessels in the Islamic Republic of Iran Navy and are expected to enter service in the coming years.

 Marina Militare is adding 10 FREMM multipurpose frigate to their fleet, while also negotiating plans to export a number of units to the Hellenic Navy and attempting to sell units to the Royal Canadian Navy.[44]

 Japan Maritime Self-Defense Force is currently developing plans for its 25DD destroyers[46] and its DDR Destroyer Revolution Project. Japan is also planning the construction of four new AEGIS-equipped destroyers, whose class is yet to be named.[47] Additionally, plans have been laid out for Japan's new 30FF anti-submarine destroyer. These ships are expected to enter service between 2018–2019.[48] Japan also recently launched JDS Asahi, the lead ship of her new class of destroyers. She will be commissioned in 2018.

 Republic of Korea Navy has begun development of its KDX-IIA destroyers. These ships are to be a subclass of South Korea's Chungmugong Yi Sun-shin-class destroyers. The first unit is expected to enter service in 2019. Additionally, three more Sejong the Great-class destroyers are being built.

 Russian Navy has begun development into its Leader-class destroyer. These ships will be the first destroyers built in Russia since the collapse of the Soviet Union and will be nuclear powered. The first unit is expected to enter service in 2023, with 11 more units to follow in the coming years.[49] Additionally, Russia is also developing its Yuschchenko-class destroyers.[50] These ships are expected to be multi-purpose destroyers tasked with reinforcing a modern Russian surface combat fleet.

 Turkish Naval Forces is currently developing its TF2000-class destroyer as the largest part of the MILGEM project. A total of seven ships will be constructed and will specify in anti-air warfare.

 United States Navy, as of 2018, has 67 active Arleigh Burke destroyers and 15 planned or under construction. The new ships will be the upgraded "flight III" version.[51] Each Arleigh Burke will remain in commission for at least 45 years, with the oldest operating until after 2035 and the newest operating until after 2080. There are no plans for any additional Zumwalt class destroyers beyond the third.

A number of countries have destroyers preserved as museum ships. These include:

• ARA Santisima Trinidad is currently being restored and will be preserved in Puerto Belgrano, Argentina.
• HMAS Vampire (D11) in Sydney, New South Wales.
• BNS Bauru, formerly USS McAnn (DE-179) in Rio de Janeiro, Brazil.
• HMCS Haida (G63) in Hamilton, Ontario.
• Chinese destroyer Anshan (101) in Qingdao, China.
• Chinese destroyer Changchun (103) in Rushan, China
• Chinese destroyer Taiyuan (104) in Dalian, China
• Chinese Luda-class destroyers, Jinan, Yinchuan, Nanjing, Nanchang, & Xining – on display in China.
• ARC Boyaca (DE-16), formerly USS Hartley (DE-1029) in Guatape, Colombia.
• French destroyer Maille-Breze (D627) in Nantes, France.
• German destroyer Mölders (D186) in Wilhelmshaven, Germany.
• HS Velos (D-16), formerly USS Charrette (DD-581) in Palaio Faliro, Greece.[52]
• BRP Rajah Humabon (PS-11) in Sangley Point, The Philippines
• ORP Blyskawica in Gdynia, Poland. The oldest preserved destroyer in the world.[53]
• Russian destroyer Bespokoynyy in Kronstadt, Russia
• ROKS Jeong Buk (DD-916), formerly USS Everett F. Larson (DD-830) in Gangneung, South Korea.
• ROKS Jeong Ju (DD-925), formerly USS Rogers (DD-876) in Dangjin, South Korea.
• HSwMS Smaland (J19) in Gothenburg, Sweden.
• ROCS Te Yang (DDG-925), formerly USS Sarsfield (DD-837) in Tainan City, Taiwan
• ROCS Sheng Yang (DDG-923), formerly USS Power (DD-839) in Taiwan
• TCG Gayret (D352), formerly USS Eversole (DD-789) in Izmit, Turkey.
• HMS Cavalier (R73) in Chatham, Kent.
• USS Cassin Young (DD-793) in Boston, Massachusetts.
• USS The Sullivans (DD-537) in Buffalo, New York.
• USS Kidd (DD-661) in Baton Rouge, Louisiana.
• USS Slater (DE-766) in Albany, New York.
• USS Stewart (DE-238) in Galveston, Texas.
• USS Orleck (DD-886) in Lake Charles, Louisiana.
• USS Turner Joy (DD-951) in Bremerton, Washington.
• USS Laffey (DD-724) in Mount Pleasant, South Carolina.
• USS Edson (DD-946) in Bay City, Michigan.
• USS Joseph P. Kennedy Jr. (DD-850) in Fall River, Massachusetts.

• List of destroyer classes
• United States Navy 1975 ship reclassification
• Bombardment of Cherbourg
• List of destroyers of the Second World War

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• Gove, Philip Babock (Editor in Chief). Webster's Third New International Dictionary of the English Language Unabridged. (2002) Merriam-Webster Inc., Publishers, Massachusetts, USA.
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• Howe, Christopher. Origins of Japanese Trade Supremacy: Development and Technology in Asia from 1540 to the Pacific War, The University of Chicago Press, ISBN 0-226-35485-7
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• Sanders, Michael S. (2001) The Yard: Building a Destroyer at the Bath Iron Works, HarperCollins, ISBN 978-0-06-092963-3
• Simpson, Richard V. Building The Mosquito Fleet, The US Navy's First Torpedo Boats. Arcadia Publishing, (2001); Charleston, South Carolina, USA. ISBN 0-7385-0508-0.
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• Van der Vat, Dan. The Atlantic Campaign.
• DD-963 Spruance-class
• Navy Designates Next-Generation Zumwalt Destroyer

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