OTO Melara 76 mm: Difference between revisions
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* Constitución Class OPV |
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==See also== |
==See also== |
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Revision as of 03:29, 24 April 2023
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| OTO Melara 76 mm | |
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_right_front_view_at_JMSDF_Yokosuka_Naval_Base_November_3,_2022_01.jpg) The OTO Melara 76mm Super Rapid as mounted in a stealth cupola (to reduce radar cross-section) onboard HTMS Bhumibol Adulyadej. | |
| Type | Naval gun |
| Place of origin | Italy |
| Service history | |
| In service | 1964–present |
| Used by | See operators |
| Production history | |
| Designer | OTO Melara |
| Designed | Compact: 1963 Super Rapid: 1985 Strales: 2004 |
| Manufacturer | Otobreda: 1963–2001 BHEL Haridwar : 1995–present (under licence) OTO Melara (subsidiary of Finmeccanica): 2001–2015 Leonardo-Finmeccanica: since 2016 Leonardo: since 2017 |
| Produced | Compact: 1964 Super Rapid: 1988 Strales: 2008 |
| Variants | See variants |
| Specifications | |
| Mass | Empty: 7.5 tonnes (17,000 lb) |
| Barrel length | 62 caliber: 4,724.4 mm (186.00 in) |
| Crew | remote controlled |
| Shell | 76×636mmR cartridge weight 12.5 kilograms (28 lb) shell weight 6.3 kilograms (14 lb) propellant weight 2.35 kilograms (5.2 lb) |
| Caliber | 76.2 mm (3.00 in) |
| Elevation | −15°/+85° speed: 35°/s (acceleration: 72°/s²) |
| Traverse | 360° speed: 60°/s (acceleration: 72°/s²) |
| Rate of fire | Compact: 85 rounds/min Super Rapid: 120 rounds/min |
| Muzzle velocity | 915 m/s (3,000 ft/s) |
| Maximum firing range | HE-PFF 16,000 m SAPOMER 20,000 m |
| Feed system | Magazine capacity: 80 ready rounds on Compact gun mount |
The OTO Melara 76 mm gun is a naval gun built and designed by the Italian defence company OTO Melara. It is based on the OTO Melara 76/62C and evolved toward 76/62 SR and 76/62 Strales.[1]
The system is compact enough to be installed on relatively small warships. Its high rate of fire and the availability of several types of ammunition make it capable of short-range anti-missile point defence, anti-aircraft, anti-surface, and ground support. Ammunition includes armour-piercing, incendiary, directed fragmentation effects, and a guided round marketed as capable of destroying maneuvering anti-ship missiles. It can be installed in a stealth cupola.
The OTO Melara 76 mm has been widely exported, and is in use by sixty navies. It was favored over the French 100mm naval gun for the joint French/Italian Horizon-class frigate project and FREMM frigate.
On 27 September 2006 Iran announced it had started mass production of a naval gun named the Fajr-27, which is a reverse-engineered OTO Melara 76 mm gun.[2]
Other specifications
- Cooling: sea water—fresh water for flushing
- Electrical Power supply
- 440 V, 3-phase, 60 Hz, main circuit;
- 115 V, 1-phase, 400 Hz, servo and synchro network
Variants
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_left_front_view_at_JMSDF_Maizuru_Air_Station_July_29,_2017.jpg)
 |
Compact
The original version has a rate of fire of 85 rounds per minute.
Super Rapid
The Super Rapid or "Super Rapido" variant, with a higher rate of fire of 120 rounds per minute, was developed in the early 1980s and remained current as of 2020[update]. The Super Rapid's higher rate of fire was achieved by designing a faster feed system.[citation needed]
Strales System
The Italian navy preferred the improved Super Rapido with Strales System and DART ammunition to the Fast Forty 40 mm CIWS in the anti-missile defense role as it is capable of countering several subsonic missiles up to 8,000 meters away.[citation needed] It is a medium caliber gun with relatively long range, and can also be used against surface targets.[3]
Sovraponte
The 76/62 Sovraponte ("over deck") is a new compact lightweight mount for the 76/62 gun. The system is around 30–40% lighter than the standard Super Rapid and its installation requires no penetration of the deck below; the mount houses 76 ready-to-fire rounds and is available for sale both with or without the Strales system. The Sovraponte mount was installed for the first time on the Thaon di Revel-class patrol vessel of the Italian Navy, positioned above the roof of the helicopter hangar.[4]
Ammunition
To provide multiple roles for the gun, OTO provides the user with wide ranges of specialized ammunition:[5]
- HE standard: weight 6.296 kg, range 16 km, effective 8 km (4 km vs. air targets at 85°)
- MOM: developed by OTO (Multirole OTO Munition)
- PFF: anti-missile projectile, with proximity fuze and tungsten balls embedded in the shell for defined fragmentation effect
- SAPOM: 6.35 kg (0.46 kg HE), range 16 km (SAPOMER: 20 km) semi-armour piercing
- DART: guided projectile for anti-aircraft and anti-missile manoeuvering targets[6]
- VULCANO: 5 kg, guided projectile with a maximum range around 40 km (it is a smaller version of the 127 mm Vulcano)[7]
Fire control system
There were evolutions in the gun's fire control systems as well. The early versions (Compatto) utilised radars such the RTN-10X Orion (made by Selenia, now Selex);
From the early 1980s the gun was equipped with a more powerful and flexible system, the RTN-30X (used with the Dardo-E CIWS system and known within the Italian Navy as SPG-73), that was capable to manage both guns (40, 76, and 127 mm calibres) and missiles (Sea Sparrow-Aspide). This system came into service with the Italian Navy on the cruiser Garibaldi (C551: the RTN-30X entered service first on the Maestrale-class frigates; the Dardo 40 mm turret was slaved to the smaller and older RTN-20X radars), but still with the twin 40 mm Dardo's turrets. The first ship equipped with Dardo E and 76 mm Super Rapido was the upgraded Audace-class destroyers, later followed by the Durand de la Penne class. The 76/62 has also been used with many other fire control systems when not in Italian service.
Fuses
There have been many developments in the fuses, essential to shoot down low-flying missiles. The best fuze developed for the 76/62 guns is arguably the 3A-Plus programmable multi-role fuse, manufactured by Oto Melara and Simmel Difesa, introduced in the early 2000s. This fuse requires the installation of a fuse programmer in the mount.[citation needed]
The programmable multi-role fuse features several modes including a time mode for air burst and a number of proximity modes: gated proximity, anti-missile proximity, conventional air defense proximity and anti-surface proximity.[citation needed]
The fusing includes a DSP which rejects ground/sea clutter and so is capable of detecting a missile flying as low as two meters above sea level. It has the capability to recognise a target at a 10-meter stand-off. In all, the fuze greatly increases the effectiveness of the gun when engaging anti-ship missiles.
DART
Since the 1980s efforts were made for development of guided 76 mm ammunition, but this was not achieved until recently. The first such ammunition was the CCS (Course Corrected Shell), also known as 'CORRETTO'; a joint program of OTO and British Aerospace.[8] Work started in 1985. The projectile had several small rockets in order to deviate the trajectory. Radio commands were sent from the ship FCS. The FCS did not know the exact position of the projectile, only that of the target. This system was too complex and unreliable, so OTO studied another development in order to obtain a real 'guided ammunition'.
The result of this development is a system which was called DAVIDE just for the Italian market and STRALES for export purposes while the fired guided ammunition is called DART (Driven Ammunition Reduced Time of flight).[8]
The DART projectile is similar in many aspects to other hyper-velocity systems, for example the Starstreak SAM missile's multi-dart warhead, but is a guided gun projectile with radio controls and a proximity fuze for low level engagement (up to 2 meters over the sea). DART is fired at 1,200 m/s (3,900 ft/s), can reach 5 km range in only 5 seconds, and can perform up to 40G maneuver.[9] The DART projectile is made of two parts: the forward is free to rotate and has two small canard wings for flight control. The aft part has the 2.5 kg warhead (with tungsten cubes and the 3A millimetric wave new fuse), six fixed wings and the radio receivers.[8]
The guidance system is Command Line of Sight (CLOS). It uses a TX antenna installed on gun. The radio-command for them is provided on a broadcast data-link (Ka Band).[8]
The first lot of DART 76mm guided ammunition, produced by OTO Melara, was successfully tested at the end of March, 2014. The firing trials were conducted on board one of the Italian Navy's ships equipped with Strales 76mm SR and Selex NA25 fire control system.[10] The first firing trials of the DART ammunition bought by Colombia in 2012 were successfully conducted in the Caribbean Sea on 29 August from the 76/62 Strales inner-layer defence system fitted to its modernized FS 1500 Padilla-class frigates.[11]
VULCANO
The more recent development is the VULCANO 76 ammunition system. Basically, it is a scaled-down version of the 127–155 mm Vulcano family of extended-range projectiles developed by OTO Melara; guided by Inertial Navigation System and Global Positioning Systems, it is capable of hitting targets twice the distance of normal 76 mm gun ammunition.[12] GPS-IMU guidance and IR or SALT Terminal sensor.[13] The Vulcan 76 GLR ammunition is expected to complete the development, test and qualification process by late 2022 with the delivery of production rounds to customers from 2023–24 onwards.[14]
Other uses
Most of the basic ammunition types offered for the OTO Melara 76mm can also be fired from the South African Rooikat armoured car with slight modification to change from electric to percussion primers. This is the only land-based vehicle system capable of deploying the same ammunition as its naval counterpart.[15]
Operators
Asia
- BNS Bangabandhu (Ulsan class frigate)
- BNS Somudra Joy (ex-USCG Hamilton-class cutter)
- BNS Somudra Avijan(ex-USCG Hamilton-class cutter)
- Ahmad Yani-class frigate (ex-RNLN Van Speijk class)
- Diponegoro-class corvette
- OPV 90M (Planned)
- Bung Tomo-class corvette
- Martadinata-class frigate
- Paiton Naval Gunnery Firing Range (OTO Melara 76mm Compact)[16]
- Visakhapatnam-class destroyer
- Kolkata-class destroyer
- Godavari-class frigate
- Brahmaputra-class frigate
- Shivalik-class frigate
- Kora-class corvette
- Kamorta-class corvette
- Veer-class corvette
- INS Vikrant (aircraft carrier)
- Hatsuyuki-class destroyer
- Asagiri-class destroyer
- Murasame-class destroyer
- Minegumo-class destroyer (JDS Murakumo only)
- JDS Ishikari
- Yubari-class destroyer escort
- Abukuma-class destroyer escort
- Hayabusa-class patrol boat
North Korea (OTO Melara 76mm gun believed to have been acquired illegally from Iran or Myanmar)[17]
- Alamgir frigate (ex-USN Oliver Hazard Perry-class frigate)
- Jose Rizal-class frigate
- Del Pilar-class offshore patrol vessel
- Jacinto-class patrol vessel
- BRP Conrado Yap
- Tarlac-class landing platform dock (planned)
- Endurance-class landing platform dock
- Formidable-class frigate
- Victory-class corvette
- Fearless-class patrol vessel
- Independence-class littoral mission vessel
- SLNS Gajabahu (P626) (ex-USCG Hamilton-class cutter)
- Nandimithra-class missile boat
- Surnimila-class missile boat
- Cheng Kung-class frigate
- Kang Ding-class frigate
- Tuo Chiang-class corvette
- Ching Chiang-class patrol ship
- Pattani offshore patrol vessel
- Ratanakosin-class corvette
- Ratcharit-class missile boat
- Chuburi-class patrol boat
- Tapi-class corvette
- Khamronsin-class corvette
- Laemsing-class patrol boat
- Bhumibol Adulyadej-class frigate
- Krabi offshore patrol vessel
- Doğan-class fast attack craft
- Kılıç-class fast attack craft
- Kılıç-II-class fast attack craft
- Yıldız-class fast attack craft
- G-class frigate
- Milgem-class corvette
- Pohang-class corvette
- Hamilton-class cutter (operated by Vietnam Coast Guard)
Africa
- Ambassador MK III-class missile boat
- Descubierta-class corvette
- Oliver Hazard Perry-class frigate
- Ramadan-class missile boat
- Tiger-class fast attack craft
- Gowind 2500 corvette[19]
- FREMM multipurpose frigate
- Mohammed VI FREMM frigate
- Sigma-class corvette
- Descubierta-class corvette
- Floréal-class frigate
- Lazaga-class patrol vessel
- Bir Anzaran-class patrol vessel
- Warrior-class patrol vessel (converted from fast attack craft with missiles launchers and rear 76mm gun removed)[20]
- Valour-class frigate
Europe
- Willemoes-class missile boat (retired)
- Niels Juel-class corvette (retired)
- Flyvefisken-class patrol vessel
- Thetis-class ocean patrol vessel
- Iver Huitfeldt-class frigate
- Knud Rasmussen-class patrol vessel
- Brandenburg-class frigate
- Bremen-class frigate
- Sachsen-class frigate
- Braunschweig-class corvette
- Gepard-class fast attack craft
- Elli-class frigate (Kortenaer-class frigate)
- La Combattante IIa-class fast attack craft
- La Combattante III-class fast attack craft
- La Combattante IIIb-class fast attack craft
- Osprey 55-class gunboat
- HSY-55-class gunboat
- Osprey HSY-56A-class gunboat
- Roussen-class fast attack craft
- Jason-class tank landing ship
- Peacock-class patrol vessel
- Róisín-class offshore patrol vessel
- Samuel Beckett-class offshore patrol vessel
- Audace-class destroyer (retired)
- Italian aircraft carrier Cavour
- Comandanti-class patrol vessel
- Durand de la Penne-class destroyer
- FREMM multipurpose frigate
- Fulmine gunboat (retired)
- Minerva-class corvette (retired)
- Orizzonte-class frigate
- San Giorgio-class amphibious transport dock
- Sparviero-class patrol boat (hydrofoil, retired)
- Thaon di Revel-class offshore patrol vessel
- Trieste LHD
- Bartolomeu Dias-class frigate (ex-RNLN Karel Doorman-class frigate)
- Hetman Ivan Mazepa Ada-class corvette (under construction/launched (as of the beginning of 2023))
Oceania
- Adelaide-class frigate (retired)
North America
- Iroquois-class destroyer (after TRUMP modifications, retired 2017)
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- Famous-class cutter (USCG)
- Hamilton-class cutter (USCG)
- Oliver Hazard Perry-class frigate (USN, retired)
- Pegasus-class hydrofoil (USN, retired)
South America
- Karel Doorman-class frigate
- CNS Almirante Williams
- Sa'ar 4-class missile boat
- Tiger-class fast attack craft (retired)
- OPV-80-class patrol vessel
- Almirante Padilla-class frigate – modernised with Strales 76 mm and DART guided ammunition[11]
- OPV-80-class patrol vessel
- Guaiquerí OPV
- Guaicamacuto OPV
- Constitución Class OPV
See also
- 76mm/L62 Allargato – the direct precursor of the Melara
- AK-176 – a similar Soviet/Russian weapon
- Otomatic – a land-based SPAA version of the Super Rapid, mounted on OF-40 chassis
- Draco – a land-based SPAA version of the Strales system, mounted on B1 Centauro chassis
References
- ^ "Iran to mass produce new artillery gun". Middle East Online. 27 September 2006. Archived from the original on 30 September 2007.
- ^ Annati, Massimo: La difesa antimissile della MM, RiD magazine, Chiavari, September 2006
- ^ "Le artiglierie navali di Leonardo". Rivista Italiana Difesa (in Italian). Rivista Italiana Difesa.
- ^ Po, Enrico, April 1997
- ^ "DART". www.leonardocompany.com (in Italian). Retrieved 16 December 2020.
- ^ Stanglini, Ruggero: Dart/DAVIDE, antimissile, ma non solo, PD Magazine, Ed.ai, Firenze, June 2003
- ^ a b c d Annati, Massimo, 2006
- ^ OTO STRALES Guidance System for 76MM and OTO DART Ammunition Brochure
- ^ "The Strales 76mm system with DART guided ammunition". 18 April 2014. Archived from the original on 30 April 2014. Retrieved 17 September 2014.
- ^ a b "Colombia conducts first DART firings". 17 September 2014. Archived from the original on 17 September 2014.
- ^ Po, Eugenio: Oto Melara guarda al futuro, RiD Magazine, July 2009
- ^ "Vulcano 76 mm". Oto Melara. 17 September 2014. Archived from the original on 18 September 2014.
- ^ "Leonardo's 76/62 mm Super Rapido: the full spectrum medium artillery". EDR Magazine. 10 July 2020.
- ^ Jane's Armour and Artillery, 2001–2002, Volume 23 p. 244-345.
- ^ "Indonesia commissions shore-based 76 mm naval gun". Janes.com. Retrieved 17 September 2021.
- ^ "H I Sutton – Covert Shores". www.hisutton.com. Retrieved 26 December 2022.
- ^ Orpiano, Pitz (26 August 2019). "The Philippine Navy Fleet's 76mm Oto Melara Main Primary Guns". Pitz Defense Analysis. Retrieved 25 March 2023.
{{cite web}}: CS1 maint: url-status (link) - ^ "DCNS contracts Oto Melara to supply 76/62 SRMF guns for Egypt's Gowinds – IHS Jane's 360". Archived from the original on 2 October 2015. Retrieved 21 December 2014.
- ^ "NS Durban to be OPVs home port". DefenceWeb. Archived from the original on 5 May 2013. Retrieved 23 October 2013.
External links
