View source for Otomat

{{More citations needed|date=June 2024}}
{{Distinguish|Otomatic}}
{{Short description|French/Italian anti-ship and land-attack missile}}
{{Infobox weapon
| is_missile = yes
| name = Otomat
| image = File:Otomat Mk 2 MGP 2007.jpg
| image_size = 300
| caption = 
| origin = Italy/France
| type = [[Anti-ship missile]] and [[land-attack missile]]
| used_by = 
| manufacturer = [[MBDA]]
| unit_cost = 
| production_date = 
| service = 1977
| engine = [[Turbojet]] engine
| weight = {{convert|780|kg|lb|0|abbr=on}} with booster
| length = {{convert|6|m|ft|1|abbr=on}}
| diameter = {{convert|400|mm|in|1|abbr=on}}
| wingspan = 
| speed = {{convert|310|m/s|mph km/h Mach|abbr=on}}
| vehicle_range = *Otomat Mk 2 Block IV: {{convert|180|km|nmi|abbr=on}} <ref name=":0"/>
*TESEO MK2/E: {{convert|350|km|nmi|abbr=on}}+
| ceiling = 
| altitude = 
| filling = {{convert|210|kg|lb|0|abbr=on}}
| guidance = [[Inertial guidance]], [[satellite guidance|GPS]] and [[active radar homing]]
| detonation = Impact and proximity
| launch_platform = Surface-launched
}}

The '''Otomat'''<ref>{{Cite web|url=http://www.globalsecurity.org/military/world/europe/otomat.htm|title = Otomat}}</ref> is an [[anti-ship missile|anti-ship]] and [[Surface-to-surface missile|coastal defence missile]] developed by the Italian company [[Oto Melara]] jointly with [[Matra]] and now made by [[MBDA]].<ref>{{Cite news|url=https://www.britannica.com/technology/tactical-weapons-system#ref180889|title=Tactical weapons system {{!}} military technology|work=Encyclopedia Britannica|access-date=2018-07-18|language=en}}</ref> The name comes, for the first versions, from the name of the two builders ("Oto Melara" and "Matra") and, for the later versions, Teseo, from the Italian word for [[Theseus]]. The MILAS variant is an anti-submarine missile.
In its latest version Mk/2E purchased by the Italian Navy is a medium range anti-ship missile and a ground attack missile.<ref name="auto">{{Cite web|url=http://www.portaledifesa.it/index~phppag,3_id,2349_arg,10_npp,2_npag,9.html|title=RID Portale Difesa}}</ref>

==Origins==
The Otomat missile program started in 1967, the same year in which the Israeli [[destroyer]] [[HMS Zealous (R39)|''Eilat'']] was sunk by three Soviet-made [[P-15 Termit]] anti-ship missiles. This event raised awareness about the effectiveness of such weapons and prompted the development of similar systems in Western countries, such as the [[Boeing Harpoon|Harpoon]] in the United States. However, it is unknown whether the Otomat program started before or after the Eilat event.{{Citation needed|date=January 2021}}

The Otomat program was undertaken by the Italian [[Oto Melara]] corporation in cooperation with the French [[Matra]] Corporation. The aim was to develop an anti-ship missile powered by a [[turbofan]] which would allow more range and a heavier warhead than rocket-powered missiles then being developed in Europe such as the French [[Exocet]] and the German [[AS.34 Kormoran|Kormoran]]. Trials started in 1971 and development of the Mk1 version of the Otomat officially ended in 1974.<ref name="Lanzara, p. 34">Lanzara, p. 34</ref>

However, at that time, the [[French Navy]] chose the wholly French [[Exocet]] over the Franco-Italian Otomat as its standard anti-ship missile. Thus, the [[Italian Navy]] remained as the only launch customer for the missile; it entered service in January 1976, before the [[ship commissioning|commissioning]] of the warship intended to carry it, the {{sclass|Lupo|frigate}}.<ref>Lanzara, p. 32</ref> These early Otomat missiles lacked a [[data link]] for over-the-horizon targeting, which limited its effective range to {{convert|60|km|mi}} a similar figure to the Exocet. To solve this problem, development of an Mk2 version started in May 1973, with a first test launch in January 1974, development completed in 1976, and the first over-the-horizon launch in 1978.<ref name="Lanzara, p. 34"/> By the end of 1976 OTO Melara had reported that 210 Otomats had been sold: Italy 48, Peru 40, Venezuela 12, and Libya 110. Also at this time there were negotiations under way for the sale of 296 more missiles to various nations (i.e. Italy 48, Egypt 30, Venezuela 48, Libya 120, Indonesia 50).<ref>Ezio Bonsignore "The Italian Naval Exhibit" Aviation & Marine page 50 October 1976 published INTERCONAIR</ref>

A Mk2 Block II version was introduced in the 1980s, it featured folding wings so that the missile could now fit in a smaller launch box. This reduction in size allowed a doubling in the number of missiles carried, usually from four to eight. Even so, Otomat Mk2 Block II remained bulkier than contemporary versions of Harpoon and [[Exocet]] missiles due to its greater diameter and its boosters being fitted to its flanks instead of in the rear.{{Citation needed|date=January 2021}}

==Description==
[[File:Otomat Mk 2 MGP 2007.jpg|right|thumb|Otomat Mk.2 in service with the Peruvian Navy. Note the lateral boosters and the air intakes at mid fuselage.]]
The Otomat is a long-range [[anti-ship missile]] capable of reaching around {{convert|180|km|}}<ref name=":0">{{Cite news|url=https://www.mbda-systems.com/product/otomat-mk2/|title=OTOMAT MK2 BLOCK IV - MBDA|work=MBDA|access-date=2018-07-17|language=en-US}}</ref> at an average speed of {{convert|1,000|–|1,100|km/h}}. It is stored and launched in a [[fiberglass]] box which weighs {{convert|1,610|kg}} fully loaded. This container has a rectangular shape to accommodate the fixed wings of the missile and an inclination of 15 degrees. At launch, the [[Booster (rocketry)|booster]]s propel the missile up to a height of {{convert|200|m}} before the main engine starts and a descent to {{convert|20|m|abbr=on}} is made. Otomat Mk2 missiles have a data-link for mid-course updates. They are designed to strike their targets in a {{convert|180|m|abbr=on}} dive or in a [[sea-skimming]] mode at an altitude of {{convert|2|m|abbr=on}} with a {{convert|210|kg|abbr=on}} warhead capable piercing up to {{convert|80|mm}} of steel. The warhead is designed to explode inside the ship with the force of the explosion directed to the bottom of the target ship.{{Citation needed|date=January 2021}}

Technical data are:<ref name="Lanzara, p. 38">Lanzara, p. 38</ref> {{convert|4.46|m|abbr=on}} length, {{convert|40|cm}} diameter, 1.35 wingspan, {{convert|780|kg|}} launch weight.<ref name=":0" />

The mid-fuselage fuel tank has a capacity of {{convert|90|L}}, behind the fuel tank is the TR-281 ARBIZON III engine, a simple [[turbo-jet]]. The twin ROXEL boosters weigh {{convert|75|kg}} each, and provide an acceleration of 6 g for four seconds.{{Citation needed|date=January 2021}}

The [[Turboméca TR.281 Arbizon]] III is a jet engine of {{convert|400|kg/t}}, around 50% more powerful than the Harpoon's engine, the Willis turbojet that has {{convert|272|kg/t|abbr=on}}. This latter engine is apparently used also on the bigger BGM-109 so this has lower speed (around {{convert|800|km/h|abbr=on}} compared to the aforementioned 1,000). Air intakes are an unusual number, four, all placed forward the wings, at mid-fuselage (as example Harpoon and Tomahawk have only one), contributing to the characteristic, complex shape of this missile.{{Citation needed|date=January 2021}}

Power available has made possible to fit in the bulky fuselage a high fuel reserve, heavy warhead and a data-link (Mk 2 model) to receive updates, at least once when in flight to the target.{{Citation needed|date=January 2021}}

The flight controls are four foldable steerable main wings, and four tail control winglets. Structure is made of light alloys, mainly [[aluminium]]. The [[Radar]] active seeker has a range, in the Italian version, of around {{convert|8|km|abbr=on}} with a medium-sized target, but usually it is activated at a shorter distance (see typical mission).{{Citation needed|date=January 2021}}

The [[warhead]] is in the front, behind the radar section and in front of the radio-altimeter and some other electronic systems. The [[High Explosive|HE]] warhead is of the semi-armor-piercing type and has a {{convert|65|kg|abbr=on}} Hertol type filler (for comparison, Kormoran missiles have {{convert|165|kg|abbr=on}} warheads, {{convert|56|kg|abbr=on}} is the HE main charge, plus 16 radial small charges to explode well inside the ship after the main explosion, and the armor-piercing capability is around {{convert|7|–|8|cm|abbr=on}}).{{Citation needed|date=January 2021}}

In a typical layout, there are 4–8 fiberglass boxes, with the missile inside, held by a rail in the roof. The overall weight is {{convert|1,610|kg|abbr=on}}.<ref name="Lanzara, p. 39">Lanzara, p. 39</ref>

Data-links are included in the TESEO or ERATO control systems. ERATO has computerized consoles CLIO, while TESEO has MM/OJ-791 consoles, weighing {{convert|570|kg|abbr=on}} with {{convert|4|kW}} electric power requirement. The Data-link is called the PRT400 system, and the components are the PTR402 designation for missile (as receiver), PRT401 designation for the transmitter (shipborn) or PTR403 (carried by helicopter). Other systems that can be fitted include the PRT404 system for light ships and the PRT405 system for helicopters.<ref name="Lanzara, p. 39"/>

Overall strengths of this missile are long range, speed, sea-skimming capabilities and a powerful warhead.<ref name="Lanzara, p. 39"/>

Weakness are the need for a helicopter for mid-course guidance and a quite difficult uplink in the TESEO system (at least in the original model), big dimensions (affecting radar cross section RCS and IR signature), the lack of complex manoeuvres (synchronization of attacks, re-engagement capabilities, ECCM capability not up to current standards and never publicized), and the availability of surface versions only: no submarine and aircraft versions were developed.{{Citation needed|date=January 2021}}

This caused problems to the services that acquired these anti-ship missiles: Italian forces use Otomat (ships), Marte (helicopters), [[AS.34 Kormoran|Kormoran]] (Tornados), [[Boeing Harpoon|Harpoons]] (not confirmed for submarines). Given the necessity to buy other totally different missile systems, many customers simply bought a 'family of missile systems' as in the Harpoon series <ref name="Lanzara, p. 39"/> and the [[Exocet]] family with obvious operative and economic advantages.{{Citation needed|date=January 2021}}

==Typical mission==
{{unreferenced section|date=June 2024}}
In terms of technology and operability, this missile presents a very powerful anti-ship weapon and perhaps the most powerful of all modern western anti-ship missiles that have a mid course data-link.{{Citation needed|date=November 2017}}

No particular maneuvers are required by the ship; the missiles are capable of changing course after the launch up to 200° so all the missiles in the ship could be used against the same [[targeting (warfare)|target]] in one attack.{{Citation needed|date=January 2021}}

This allows for quick reaction times, as the ship does not need to change direction to reveal the missile batteries. This allows the ship to fire all missiles against a target regardless of where they are placed aboard.{{Citation needed|date=January 2021}}

===Flight===
The boosters made by ROXEL are positioned at the flanks. They give enough speed to allow the turbojet to start, while the wings open. Four seconds later, once the missile reaches a 250&nbsp;m/s speed and 200 m [[height]], it stabilizes its [[flight]] and descends to 20 m, cruising at low altitude. At this time, the auto-pilot and the altimeter hold the right directions to the target. The missile flies at around 1,000&nbsp;km/h, controlled with the four cross winglets in the aft, which are behind the main fixed wings to stabilize the weapon.{{Citation needed|date=January 2021}}

Mid-course update is possible with several systems. This weapon system is called TESEO (only the missile is called Otomat) in the Italian Navy, and the course correction is given by two channels: by the ship itself (TG-1) and with external sources, available in the Agusta Bell AB-212 ASW helicopter's final production batch (TG-2).<ref name="Lanzara, p. 39"/>

While the missiles flies it receive the input at mid-course. Then, at only 6&nbsp;km from the target, it activates the onboard radar to reduce reaction time from the target. There are two models: the simpler ST-2 made by SMA (Italian missiles) and the more complex and ambitious CSF 'Col vert', for French made missiles. The CSF is only for export, since the French Navy has not adopted them. There is a large difference in the seekers. The first is a one axis, two dimensional radar system: the weapon simply continues to fly to the ship, with the altitude falling from 20 m to, in good sea conditions, 2-3m. The warhead is heavy, weighing 210&nbsp;kg ([[Exocet]] 165, Harpoon 227) and the explosive blast is focused downward, attempting to blast a hole in the ship's bottom sinking rather than just damaging the vessel. The Col Vert version of the missile performs pop up flight to 180 m at around 2&nbsp;km from the target and then dives on the ship, aiming at the decks to maximize damage.<ref name="Lanzara, p. 38"/>

The Col Vert version seems to have suffered problems in service with issues from sea state wave clutter. The popup and final dive attack of the Col Vert version of Otomat were designed to fool CIWS fire solutions. A similar approach was used in the US Harpoon system, then abandoned. Sensors in this variant are more complex and costly than the simpler sea skimming models, and while more capable to penetrate air defenses, they may have not shown a decisive superiority, even if technologically more sophisticated.{{Citation needed|date=January 2021}}

===Mid-course datalink===
{{unreferenced section|date=June 2024}}
The mid-course data uplink was originally provided by two different systems: TESEO and ERATO.{{Citation needed|date=January 2021}}

The ERATO (Extended Range Air Targeting for Otomat) system, used by the Al-Madinah class frigates, is the French version for mid-course guidance of the Otomat missile. In this case updated target information is provided to the ship which controls up to 16 missiles. This allows a multi-ship launch (Madinas have eight missiles each) and single ship control of an Otomat salvo for coordinated attack. The downside of this system is that the Otomat missile must rise to a 900-meter altitude to achieve uplink data. This could theoretically warn a target ship of the impending attack, but there are few possibilities to notice such small missiles at ranges of more than a few dozen kilometers.<ref name="Lanzara, p. 39"/> Maximum range for data-link is 100&nbsp;km, limiting somewhat the missile's maximum range. It is possible to send up to six corrections for each missile, and attack up to six different targets at once. Consoles are called CLIO, integrated with ship's combat system.{{Citation needed|date=January 2021}}

TESEO is used by the Italian Navy and does not need altitude variations in the flight for missiles.{{Citation needed|date=January 2021}}

The limiting factor with the Otomat as incorporated in the TESEO system is that the AB-212 ASW Helo platform used for update has a limited radar range of no more than 60&nbsp;km (with a 2,000 m2 RCS target, typically a frigate or destroyer), and will be hovering and stationary to allow the missile to fly under it and guide Otomat to its target. If the target ship has a medium-range SAM suite like [[RIM-66 Standard]] missiles, and is aware of the danger (with radar and [[Electronic Support Measures|ESM]] suites), the AB-212 Helo's lifespan could be limited to mere seconds, as it is much bigger than anti-ship missiles.{{Citation needed|date=January 2021}}

TESEO system requires that the missile fly under the helicopter, allowing the engagement of only one target at a time (even if with two missiles), the missiles must be launched to helicopter and so, this one must fly practically fixed for several minutes, while the missiles must fly a longer flight path, being this launch a non linear flight path.{{Citation needed|date=January 2021}}

In addition, the AB-212 Helo is old, slow and vulnerable to any air platform with even minimal AAW capabilities. AB-212ASW speed is listed at 196&nbsp;km/h, slower than the land model AB 212, with 185&nbsp;km/h max. cruise speed. The other widespread naval helicopters, [[Westland Lynx]], [[Eurocopter Dauphin]] and [[Sikorsky Seahawk]]s are all far faster and the four-bladed main rotor system permits greater agility, vs the older two-bladed rotors. There is also concern about ECM measures against older weapons system with a relatively primitive uplink system. A further complication is that the AB-212 will take up to an hour to reach Otomat's maximum range (in the meanwhile, a jet interceptor can fly easily for more than 900&nbsp;km), as time in combat is a valuable commodity. All these problems are at least partially solved in Madina' frigates, that have ERATO data link system and AS-365 Dauphin helicopters, capable of almost 300&nbsp;km/h.{{Citation needed|date=January 2021}}

==Developments==
A version called '''Otomach''' was proposed as a further improvement on the Mk2, with a speed of [[Mach number|Mach]] 1.8. However, further evaluations found that stealth was better than speed at penetrating warship defenses so the project was dropped. In 1992, the Italian government started the development of a new generation anti-ship missile designated Otomat Mk3 with a dispersement of 19 million units. Meanwhile, the French Navy chose to pursue the ANS/ANNG/ANF project for a supersonic missile, thereby ending French involvement in the development of the Otomat.<ref>Lanzara, p. 36</ref>

The Mk3 version was named at one point ''Ulisse'', the Italian name for the mythical hero [[Odysseus]]. With development starting twenty years after the Mk1 version, the Mk3 was a quite different weapon. The guidance package was updated with new IR and radar sensors in the nose, a [[GPS]] navigation system and an updated data link to allow the engagement of coastal targets. To improve the missile chances of hitting, its nose and wing shapes were optimized for a reduced [[radar cross section]] (RCS). Range was improved to 250–300&nbsp;km while keeping the same dimensions of the previous versions. The warhead was kept at 210&nbsp;kg but fitted with an armored casing and [[insensitive munitions|less sensitive explosives]] which lowered its chances of being destroyed by [[close-in weapon system]]s. Three Otomat missiles were test launched in 1994–1995 with IR guidance and the new data link with good results. At this stage, an air-launched version was also considered for improved versatility. The [[United States Navy]] (USN) showed interest in this missile for many years as an intermediate system between the [[Boeing Harpoon|Harpoon]] and the [[BGM-109 Tomahawk|Tomahawk]].<ref name="Lanzara, p. 37">Lanzara, p. 37</ref> However, the USN withdrew from the program in 1999 and it was soon canceled as the Italian Navy was unable to fully fund its development.{{Citation needed|date=January 2021}}

The latest version of the Otomat is the Mk2 Block IV, also called Teseo Mk2/A. It has a new data link which allows its flight to be controlled from the ship via the Teseo system in a similar way to Erato. GPS is also fitted allowing programmable flight trajectories with complex paths. The Italian Navy ordered 38 missiles of this version, 27 for operational use and 11 for training purposes with an estimated in-service date of 2008.<ref name="Lanzara, p. 37"/> [[ROKETSAN]], a Turkish missile manufacturer, signed an agreement in 2010 with [[MBDA]] to design, develop, and produce the new generation of rocket engines for the Otomat.<ref>{{cite web|url=http://www.roketsan.com.tr/en/urunler-hizmetler/hava-sistemleri/teseo-fuzesi-icin-roket-motoru-gelistirme/|title=Roketsan Teseo|access-date=2014-05-01|archive-url=https://web.archive.org/web/20140715052118/http://www.roketsan.com.tr/en/urunler-hizmetler/hava-sistemleri/teseo-fuzesi-icin-roket-motoru-gelistirme/|archive-date=2014-07-15|url-status=dead}}</ref>

===MILAS===
{{Infobox weapon
|is_missile=yes
|name=MILAS
|image=
|caption=
|origin=
|type=[[Anti-submarine missile]]
|used_by= [[Italian Navy]]
|manufacturer=[[MBDA]]
|unit_cost=
|production_date=
|service=2002
|engine=[[Turbojet]] engine
|weight={{convert|800|kg|lb|0|abbr=on}}<ref name=Milas />
|length={{convert|6.0|m|ft|1|abbr=on}}<ref name=Milas />
|diameter={{convert|460|mm|in|1|abbr=on}}<ref name=Milas />
|wingspan=
|speed=
|vehicle_range=>{{convert|35|km|nmi|abbr=on}}<ref name=Milas />
|ceiling=
|altitude=
|filling=[[MU90 torpedo]]
|guidance=
|detonation=
|launch_platform=Container launcher
}}
A separate path led to the development of MILAS, an [[anti-submarine]] variant of the Otomat Mk2. It is bigger than Otomat, {{convert|6|m|ft|abbr=on}} long and {{convert|800|kg|lb|abbr=on}}, and delivers a MU90 torpedo to a range of over {{convert|35|km|nmi}}.<ref name=Milas /> It started in 1986 as a Franco-Italian program for a missile capable of delivering a lightweight anti-submarine [[torpedo]]. The first test launch took place in 1989, ten more launches with torpedoes fitted had taken place by 1993. Tests ended in 1999, however, by that time France had lost interest in the system even though it had originally proposed the idea as a replacement for its own [[Malafon]] system. Thus, Milas entered service in 2002 with the Italian Navy only, after almost 20 years of development.<ref name="Lanzara, p. 40">Lanzara, p. 40</ref> Milas is an all weather day/night system that can put a torpedo in the water 35&nbsp;km from its launch platform within three minutes and update its impact point in flight.{{Citation needed|date=January 2021}}

Milas missiles are in service on the two {{sclass|Durand de la Penne|destroyer|1}}s and the 4 anti-submarine [[FREMM multipurpose frigate|FREMM frigates]] of the Italian Navy.{{Citation needed|date=January 2021}}

The only other variant in service is a coastal defense version bought by Egypt and Saudi Arabia, and ordered by Iraq but never delivered to that country.<ref name="RID 1995, p. 32">RID 1995, p. 32</ref> All necessary electronics are trailer-mounted as well as twin missile launchers, which makes it a high mobility system. Even so, Iraq had planned to deploy it in fixed armored sites.<ref name="RID 1995, p. 32"/>

==Testing and the future of Otomat==
There is no known combat use of Otomat but there were many tests. In 1987, a Venezuelan ''Lupo''-class frigate hit an old US destroyer used as target at 122&nbsp;km, leaving a 6&nbsp;m hole in it.<ref>RID 1987, p. 12</ref> Flight took a little over 400 seconds. In another example, at least 8 missiles were purchased by the US Navy: thanks to a new evasive maneuver, the majority of these weapons, called LRAT (Long Range Autonomous Target) penetrated inside the formidable missile defenses of US ships.<ref name="Lanzara, p. 39"/>

All in all, this missile was and is a very powerful weapon. Without helicopter provided mid-course guidance (especially in presence of dangerous high-speed enemy dogfighters), this weapon is still capable of striking well over the horizon. A range of 50&nbsp;km can be covered with the ship's own sensors and missiles like MM38 [[Exocet]] are at their optimum. Between 50 and 120&nbsp;km is the range that weapons like [[Harpoon (missile)|Harpoon]], which have over the horizon capabilities but no data-link updater, come into play. At ranges longer than that a target moving in unpredicted directions will give such weapons little or no chance to acquire their target. Finally, over 120&nbsp;km is where the need for a long-range weapon, external targeting platforms and data-linked updates come into play as only with course and target position updating can any long-range missile have a chance of engaging a moving target at these ranges. This is the typical capability of the Otomat, and long-range soviet missiles or French [[Exocet|Exocet MM.40 Block 3]] (>180&nbsp;km). In short-range engagements, the Otomat does not have any advantage since it is bigger than other missiles and presents a larger target to shoot down.{{Citation needed|date=January 2021}}

There has been a strong resurgence in naval military orders from [[Fincantieri]] shipyards, including seven ships for the Qatari Navy (four corvettes, two [[offshore patrol vessel]]s, and a [[landing platform dock]] (LPD) similar to the 8,800-ton {{ship|Algerian amphibious transport dock|Kalaat Béni Abbès||2}}), the US {{sclass|Freedom|littoral combat ship}}, an LPD (with [[EMPAR]]) for Algeria, and the UAE [[Abu Dhabi class]] corvette. The Qatari order in particular was strongly contested between Italy and France, and one of the largest recent naval contracts worldwide.<ref>{{Cite web|url=https://www.defensenews.com/global/2016/04/15/italy-france-clash-over-naval-deal-with-qatar|title = Italy, France Clash over Naval Deal with Qatar|date = 8 August 2017}}</ref><ref>{{Cite web|url=http://navaltoday.com/2016/06/17/fincantieri-beats-dcns-in-qatari-e4-billion-shipbuilding-mega-contract|title = Fincantieri beats DCNS in Qatari €4 billion shipbuilding mega contract|date = 17 June 2016}}</ref> This resurgence, and a planned update of the Otomat system, should further enhance orders of Otomat and [[Sea Killer|Marte]] systems. A contract was signed on 1 September 2016 between MBDA Italy and Qatar for the sale of coastal Marte ER missiles.<ref>{{Cite web|url=http://www.mbda-systems.com/press-releases/mbda-signs-contract-to-supply-a-coastal-missile-system-to-qatar|title = MBDA signs contract to supply a coastal missile system to Qatar &#124; Press Release}}</ref>

==Submodels==
{{More references needed section|date=June 2024}}
[[File:DN-SD-05-00556.jpg|thumb|In the low part, left sector of this image there are two Otomat launch boxes in the former, rectangular models linked to Mk 1/Mk 2 Block 1. The ship is a Peruvian Navy ''Lupo''-class frigate.]]
There are significant differences between Otomat versions. The only component that has remained the same is the engine. In the mid-1990s production exceeded 900 [[missile]]s (compared to 3,000 [[Exocet]]s and 6,000 [[AGM-84 Harpoon|Harpoon]]s).{{Citation needed|date=January 2021}}

This is the complete family, in chronological order:
* '''Otomat Mk 1''': first model, without data link, 60&nbsp;km practical range, service from 1976{{Citation needed|date=January 2021}}
* '''Otomat Mk 2 Block I''': first model with data-link, 180&nbsp;km range, first over-the-horizon launch in 1978{{Citation needed|date=January 2021}}
* '''Otomat Mk 2 Block II''': it had foldable wings, allowing the use of smaller boxes, and so using two missiles instead of one. It started to appear in the 1980s, though it took considerable time to replace the first model.{{Citation needed|date=January 2021}}
* '''Otomat Mk 2 Block III''': new [[Inertial navigation system|INS]] navigation system, 'insensible' warhead, new, safer solid propellant for boosters, improved data link to allow TESEO to guide missiles also from the ship directly. It is not known when it entered service.{{Citation needed|date=January 2021}}
* '''Otomat Mk 3'''/NGASM/ULISSE: new version with longer range, stealth design (both shape and materials), [[infrared homing|IRST]] sensor coupled with the radar and GPS, land attack capabilities. Development started at the beginning of '90s. The US Navy was interested but didn't adopt the system and the Italian Navy abandoned the project, the cost being too high for the Italian navy alone.{{Citation needed|date=January 2021}}
* '''MILAS''': [[Anti-submarine warfare|ASW]] version with a light torpedo in the nose. Weights 800&nbsp;kg (including torpedo), 6-meter length, 0.46-meter diameter, and 5&nbsp;km to 35+ km effective range, compatible with Otomat standard systems.<ref name=Milas>{{cite web| url=https://www.mbda-systems.com/polska/product/milas/ | title=
MILAS - Ship-borne Anti-Submarine weapon system | access-date=2024-03-03}}</ref> The MILAS program started in the 1980s, and was finally adopted only by Italian Navy, the French Navy withdrawing from the program due to cost.{{Citation needed|date=January 2021}}
* '''Otomat Mk 2 Block IV''': also called Teseo Mk2/A (for the Italian Navy, with a new electronic set, partially derived from Marte Mk 2/S missile program. The missile has a range of 180 kilometres.<ref name=":0"/> The TG-2 (data-link for helicopters) is abolished, because the ship is capable to guide the missile directly (as happened with ERATO) with information given by external platform with OTH engagements. The missile is capable of: re-attack, 3-D mission planning, coordinate attacks, capability to operate in littoral theaters, and attack with terminal evasive maneuvers. GPS is added and so the weapon can attack also land targets. In May 2006, Teseo MK2/A was successfully test-fired for the first time. This variant will in due course be deployed on the Italian variant of the Franco-Italian FREMM frigate. Teseo MK2/A has entered service with the Italian Navy in 2007. Available on the export market and has been purchased by export customers as of 2008.<ref>{{Cite web|url=http://www.defense-aerospace.com/article-view/release/98650/malaysian-otomat-hits-target-at-over-60-km.html|title = MBDA Otomat Scores Another Direct Hit}}</ref>
* '''Otomat Mk 2 E''': the Italian Navy has acquired the new MBDA heavy-duty missile TESEO MK / 2E (TESEO "EVO") with also a strategic land attack capability for the attack of ground targets (the latter capacity, currently only possessed by the Air Force Military with the STORM SHADOW missile). In this regard it is considering the possibility of equipping the missile with a new terminal "head" with dual RF seeker (Radio Frequency) and, presumably, given the need to attack pure ground targets, IIR (IR imaging). Compared to the predecessor OTOMAT / TESEO, the TESEO "EVO" has a double range, more than 360&nbsp;km.<ref name="auto"/><ref>{{Cite web |url=https://www.airpressonline.it/33516/33516/ |title=Mbda: Le evoluzioni di Marte e Teseo al centro delle attività del sito di la Spezia - Airpress Online |access-date=2019-05-19 |archive-date=2020-03-01 |archive-url=https://web.archive.org/web/20200301025908/https://www.airpressonline.it/33516/33516/ |url-status=dead }}</ref><ref>{{Cite web|url=https://www.trasporti-italia.com/articoli/articolo/33323/mbda-al-via-lo-sviluppo-del-nuovo-teseo|title=Mbda, al via lo sviluppo del nuovo Teseo|website=www.trasporti-italia.com|date=22 March 2018 }}</ref>

==Operators==
[[File:Otomat operators.png|thumb|center|upright=2|Map with Otomat operators in blue]]

===Current operators===
{| class="wikitable"
! style="text-align: left;"|Navy
! style="text-align: left;"|Ship class
! style="text-align: left;"|Ships
! style="text-align: left;"|Submodel
! style="text-align: left;"|Notes
|-
| rowspan="6" |{{navy|ITA}}
|{{sclass2|Horizon|destroyer|1}}
|2
|Teseo Mk2/A (4 double launchers)
| rowspan="6" |Previously launchers embarked on follows written off ships:
* 4 double for Otomat Mk2 x 1 {{ship|Italian aircraft carrier|Giuseppe Garibaldi|551|2}} (ship not written-off but missiles removed)
* 4 single for Otomat Mk2 x 1 {{sclass|Vittorio Veneto|cruiser|1}}
* 4 double for Otomat Mk2 x 2 {{sclass|Audace|destroyer|1}}s
* 8 single for Otomat Mk1 x 4 {{sclass|Lupo|frigate|1}}s
* 8 double for Otomat Mk2 x 1 {{sclass|Artigliere|frigate|1}}
* 2 single for Otomat Mk1 x 7 {{sclass|Sparviero|patrol boat|1}}s
|-
|{{sclass|Durand de la Penne|destroyer|1}}
|2
|Teseo Mk2/A (2 double launchers) and Milas (2 double launchers)
|-
|[[FREMM multipurpose frigate|''Bergamini''-class frigate (FREMM GP)]]
|2
|Teseo Mk2/A (4 double launchers)
|-
|[[FREMM multipurpose frigate|''Margottini''-class frigate (FREMM ASW)]]
|4
|Teseo Mk2/A (2 double launchers) and Milas (2 double launchers)
|-
|{{sclass|Maestrale|frigate|1}}
|7
|Teseo Mk2 (4 double launchers)
|-
|[[Soldati-class frigate|''Artigliere''-class frigate]]
|2
|Teseo Mk2 (8 double launchers)
|-
| rowspan="2" |{{navy|Libya}}
|Vosper Mk.7-class frigate
|1
| rowspan="2" |Otomat Mk1
| rowspan="2" |The frigate ({{ship|Libyan frigate|Dat Assawari||2}}) is now a training hulk<br />Two not operational
|-
|La Combattante IIa-class fast attack craft
|9
|-
| rowspan="3" |{{navy|PER}}
|{{sclass|De Zeven Provinciën|cruiser|1}}
|1
| rowspan="3" |Otomat Mk2
| rowspan="3" |
|-
|[[Lupo-class frigate|''Carvajal''-class frigate]]
|4
|-
|{{sclass|Lupo|frigate|1}}
|4
|-
| rowspan="2" |{{navy|VEN}}
|[[Lupo-class frigate|''Mariscal Sucre''-class frigate]]
|6
| rowspan="2" |Otomat Mk2
| rowspan="2" |
|-
|''Federacion''-class fast attack craft
|3
|-
| rowspan="3" |{{navy|EGY}}
|{{sclass|Ramadan|missile boat|1}}
|6
|Otomat Mk2
| rowspan="3" |Otomat Mk2 are also deployed in coastal defense batteries<br />2 units retired
|-
|{{sclass2|October|missile boat|1}}
|4
|Otomat Mk1
|-
|[[FREMM multipurpose frigate|''Bergamini''-Class frigate  (FREMM-GP)]]
|2
|Otomat Mk2/A
|-
|{{navy|MYS}}
|{{sclass2|Laksamana|corvette|1}}
|4
|Otomat Mk2
|
|-
|{{navy|Bangladesh}}
|{{sclass|Ulsan|frigate|1}}
|1
|Otomat Mk 2 Block IV
|Installed on [[BNS Khalid Bin Walid]]
|-
|{{navy|Nigeria}}
|[[MEKO 360|MEKO 360H1-class frigate]]
|1
|Otomat Mk1
|
|-
|{{navy|Kenya}}
|Nyayo-class fast attack craft
|2
|Otomat Mk1
|removed during 2011 refitting
|-
|{{navy|SAU}}
|''Al-Medinah''-class frigate
|4
|Otomat Mk2
|Uses ERATO mid-course data uplink<br />Otomat is also deployed in coastal batteries
|-
|{{navy|Iraq}}
|{{sclass2|Assad|corvette|1}}
|2
|Otomat Mk2
|Interned at La Spezia, Italy since 1990
|}

==Market==
* '''{{BGD}}''' '''– 10''' 
** 10 Otomat Mk 2 – Block IV (delivered in 2001 for [[BNS Khalid Bin Walid]])<ref name="SIPRI">{{cite web |url=http://armstrade.sipri.org/armstrade/page/trade_register.php |title=Trade-Register-1971-2019.rft |website=[[Stockholm International Peace Research Institute]] |access-date=18 February 2021}}</ref>
* '''{{EGY}}'''  '''– 135''' 
** 75 Otomat Mk 1 (25 delivered between 1975/1976 for October FAC, 50 delivered between 1981/1982 for Ramadan FAC)
** 60 Otomat Mk 2 (delivered between 1980/1981 for coast defence systems){{Citation needed|date=January 2021}}
* {{ITA}}  '''– around 200''' (not confirmed
** 48 Otomat Mk ('''1''' sold to the end of 1976 for Lupo Class frigate)
** 48 Otomat Mk 2 (programmed in 1976 for Maestrale Class frigate)
** 38 Otomat Mk 2  – Block IVA / Teseo bought in 2006, fitted from storage missiles);{{Citation needed|date=January 2021}}
* {{KEN}} '''– 20''' 
** 20 Otomat Mk 2 (delivered in 1987 for Province - Nyayo - FAC){{Citation needed|date=January 2021}}
* {{LBY}} '''– 120'''
** 30 Otomat Mk 1 (delivered between 1979/1981 for 4 Wadi corvettes)
** 90 Otomat Mk 2 (80 delivered between 1982/1984 for Combattante-2G Type - Beir - FAC; 10 delivered in 1984 for Dat Assawari frigate){{Citation needed|date=January 2021}}
* {{MYS}} '''– 48'''
** 48 Otomat Mk 2 (12 delivered between 1998/2000 for Laksmana - Assad - corvettes; 12 delivered in 2000 for Laksmana - Assad - Class corvettes; 24 Otomat Mk 2 delivered between 2002/2004 for Laksmana - Assad - corvettes){{Citation needed|date=January 2021}}
* {{NGR}} '''– 40''' 
** 40 Otomat Mk 1 (delivered between 1980/1981 for FPB-57 Type - Ekpe - FAC; 15 delivered in 1982 for MEKO-360 - Aradu - frigate){{Citation needed|date=January 2021}}
* {{PER}} '''– 81'''
** 81 Otomat Mk 2 (60 delivered between 1979/1987 for Lupo - Carvajal - frigates; 15 delivered in 1988 for De Ruyter - Almirante Grau - cruiser; 6 delivered in 1998){{Citation needed|date=January 2021}}
* {{SAU}} '''– 225'''
** 225 Otomat Mk 2 (75 delivered between 1985/1986 for F-2000S - Madina - frigates; 155 delivered between 1987/1988 for coast defence systems){{Citation needed|date=January 2021}}
* '''{{flagicon|Turkmenistan}}''' [[Turkmenistan]]  '''– 15'''
** 15 Otomat Mk 2 (ordered in 2019 for C-92 frigate)
* {{USA}} '''– 8''' (at least)
** 8 Otomat Mk 2 (delivered for test with US Navy{{Citation needed|date=January 2021}})
* {{VEN}} '''– 140'''
** 15 Otomat Mk 1 (delivered in 1975 for 3 Constitucion FAC)
** 125 Otomat Mk 2 (delivered between 1980 and 1982 for Lupo - Sucre - frigates; 14 delivered between 1992 and 1993 in $17M deal; 11 delivered in 2000)<ref name="SIPRI" />

==See also==
*{{lwc|Ghader (missile)|Qader}}
*{{lwc|Atmaca}}
*{{lwc|NASM-MR}}
*{{lwc|Babur (cruise missile)|Babur}}
*{{lwc|SOM (missile)|SOM}}
*{{lwc|Noor (missile)|Noor ASCM}}
*{{lwc|Zafar (anti-ship missile)|Zafar}}
*{{lwc|Persian Gulf (missile)|Khalij Fars}}

==Notes==
{{Reflist|30em}}

==References==
*{{in lang|it}} Annati, Massimo. "Difesa costiera: problemi e soluzioni". ''[[Rivista Italiana Difesa]]'' 14 (10): pp.&nbsp;50–58 (October 1995).
*{{in lang|it}} Lanzara, Leonardo. "Il missile antinave Otomat/Teseo". ''Rivista Italiana Difesa'' 26 (2): pp.&nbsp;34–40 (February 2007).
*{{in lang|it}} "RID news". ''Rivista Italiana Difesa'' 6 (11): p.&nbsp;12 (November 1987).

==External links==
*[https://web.archive.org/web/20070915061713/http://www.otobreda.it/products/products.asp?id=prod_naval_missile Oto Melara website]
*[http://www.deagel.com/Anti-Ship-Missiles/Otomat-Mk2-Block-IV_a001120001.aspx Deagel.com]
*[http://www.globalsecurity.org/military/world/europe/otomat.htm GlobalSecurity.org]
*[https://web.archive.org/web/20071015093750/http://missilethreat.com/cruise/id.37/cruise_detail.asp MissileThreat.com]

[[Category:Anti-ship missiles of Italy]]
[[Category:Anti-ship missiles of France]]
[[Category:OTO Melara]]
[[Category:Matra]]
[[Category:Military equipment introduced in the 1970s]]