Otobreda 76 mm

Otobreda 76 mm
300px The Otobreda 76mm Super Rapid as mounted in a stealth cupola (to reduce Radar cross-section) onboard the Norwegian Fridtjof Nansen.
Type	Naval gun
Place of origin	Italy
Service history
In service	1964 - present
Used by	See users
Production history
Designer	Oto Melara
Designed	Compact: 1963 Super Rapid: 1985
Manufacturer	Oto Melara (1963–2001) OtoBreda (2001 onwards)
Produced	Compact: 1964 Super Rapid: 1988
Variants	See variants
Specifications
Weight	Empty: 7.5 tonnes (17,000 lb)
Barrel length	62 caliber: 4,724.4 mm (186.00 in)
Shell	76×900mmR (complete round) 12.34 kilograms (27.2 pounds)
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 round/min Super Rapid: 120 round/min
Muzzle velocity	925 m/s (3,030 ft/s)
Maximum range	HE round fired at 45°: Compact: 20,000 m (22,000 yd) Super Rapid: 30,000 m (33,000 yd)
Feed system	Magazine capacity: 80 ready rounds on Compact gun mount 85 ready rounds on Super Rapid gun mount

The Otobreda 76 mm gun is a naval artillery piece built by the Italian defence conglomerate of Otobreda, developed originally from the Oto Melara 76/62mm Allargato, which was bigger, heavier and had a slower rate of fire. A vehicle-mounted version known as the Otomatic was built for the self-propelled anti-aircraft gun role, although this was not put into production.

The gun is capable of very high rates of fire, making it suitable for short-range anti-missile point defence. Its calibre also gives it abilities for anti-aircraft, anti-surface and ground shelling. Specialised ammunition is available for armour piercing, incendiary and directed fragmentation. A new stealth cupola has been designed in recent years.

The system is compact enough to be installed on relatively small warships, like corvettes, avisos (a vessel somewhere between a corvette and a patrol boat), or patrol boats. It has been widely exported and is in use with 53 navies.

It has recently been favoured over the French 100 mm naval gun for the new Horizon CNGF frigates.

On 27 September 2006 Iran announced it has started mass production of a marine artillery gun, named the Fajr-27, which is a reverse-engineered Oto Melara 76 mm gun.

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

• 76/62 Super Rapid - with increased rate of fire of 120 rounds per minute and increased range of 30km.

Users

Platforms using the Oto-Melara 76 mm include:

Asia

Bangladesh

• DW Class Frigate

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• Van Speijk class frigate
• Sigma class corvette

India

• Godavari class frigate
• Brahmaputra class frigate
• Shivalik class frigate
• kora class corvette
• Kamorta class corvette
• Veer class corvette

Iran

• Kaman class missile boat

Israel

• Saar 3 class missile boat
• Saar 4 class missile boat
• Saar 4.5 class missile boat

Japan

File:TV 3516 Asagiri.JPG

The OTO-Melara 76mm mounting is seen in this photograph of the Japanese Asagiri class destroyer Asagiri, formerly DD 156, renumbered TV 3516, seen here on 28 July 2008 departing from Portsmouth Naval Base, UK

• Hatsuyuki class destroyer
• Asagiri class destroyer
• Murasame class destroyer
• Ishikari class destroyer escort
• Yubari class destroyer escort
• Abukuma class destroyer escort
• Hayabusa class patrol boat

South Korea

• Ulsan class frigate
• Pohang class corvette
• Donghae class corvette
• Gumdoksuri class patrol vessel

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• Aung Zay Ya class frigate
• Anawyatha class corvette

Malaysia

• Laksamana class corvette
• Kedah Class Offshore Patrol Vessel

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• Jacinto class offshore patrol vessel

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Republic of Singapore Navy

File:RSS Valour 76mm OTO Melara.JPEG

The OTO Melara 76mm Super Rapid gun mounted on the Victory class corvette - RSS Valour (89)

• Endurance class LST
• Formidable class frigate
• Victory class corvette
• Fearless class patrol vessel

Sri Lanka

• Saar 4 class fast missile vessel
  • SLNS Nandimithra
  • SLNS Suranimala

Thailand

• Pattani class offshore patrol vessel
• Ratanakosin class corvette
• Ratcharit missile boat
• Chuburi patrol boats
• Tapi class large patrol corvette
• Khamronsin corvette

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• Cheng Kung class frigate
• Kang Ding class frigate

Africa

Egypt

• Descubierta class corvette - Spanish built
• Oliver Hazard Perry class frigate
• Ramadan class fast attack missile boat
• Type-143 Tiger class fast attack missile boat

Morocco

• Descubierta class corvette - Spanish built
• Floreal class frigate
• OPV70 class patrol vessel

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• Warrior class - modified Sa'ar 4 class missile boat with two guns
• Valour class frigate - German built MEKO design

Europe

Belgium

• Karel Doorman class frigate

Denmark

• Flyvefisken class patrol vessel
• Thetis class patrol frigates
• Iver Huitfeldt class frigate (In service from 2012)
• Knud Rasmussen class patrol vessel

France

• FREMM multipurpose frigate
• Horizon Common New Generation Frigate

Germany

File:Oto76mmF221Hessen.jpg

OTO-Melara 76 mm gun onboard the Sachsen class frigate - F221 Hessen

• Brandenburg class frigate - MEKO design
• Bremen class frigate - MEKO design
• Sachsen class frigate - MEKO design
• Braunschweig class corvette - MEKO design
• Gepard class fast attack craft

Greece

• Elli class frigate
• FACM Class La Combattante III
• FACM Class La Combattante IIIb
• FACM Class La Combattante IIa
• Osprey 55 class gunboat
• HSY-55 class gunboat
• Osprey HSY-56A class gunboat
• Super-Vita
• Jason class LST

Ireland

• Peacock class patrol vessels
• Róisín class Offshore Patrol Vessels

Italy

• Audace class destroyer
• Durand de La Penne class destroyer
• San Giorgio class amphibious transport dock
• Cassiopea class patrol vessel
• Minerva class corvette
• FREMM multipurpose frigate
• Horizon Common New Generation Frigate
• Cavour

Netherlands

• Karel Doorman class frigate

Norway

• Fridtjof Nansen class frigate
• Skjold class patrol boat

Poland

• Oliver Hazard Perry class frigate

Portugal

• Bartolomeu Dias class (former Dutch Karel Doorman class)

Romania

• Regele Ferdinand frigate
• Regina Maria frigate

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• Santa Maria class frigate
• Descubierta class patrol vessel
• Buque de Accion Maritima (BAM) Class

Turkey

• Doğan class fast attack craft
• Kılıç class fast attack craft
• Kılıç-II class fast attack craft
• Yıldız fast attack craft
• New Generation Frigate

North America

Canada

• Iroquois class destroyer after TRUMP modifications (Canada)

United States

File:USCG Gallatin Mk 75 firing.jpg

The Mk 75 in use aboard USCGC Gallatin, 2005.

• Famous-class medium endurance cutter (USCG)
• Hamilton-class high endurance cutter (USCG)
• Oliver Hazard Perry–class frigate (USN)
• Pegasus-class hydrofoil (now de-commissioned) (USN)

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• Oaxaca class Offshore Patrol Vessel(Mexican Navy)

Oceania

Australia

• Adelaide class frigate

South America

Argentina

• Espora class frigate - license built MEKO 140 design

Chile

• Karel Doorman class frigate¨
• Type 22 Batch II Williams frigate
• Saar 4 class missile boat
• S 148 class missile boat

Ecuador

• Quito class missile boat (Ecuador)

Peru

• PR-72P class corvette (Peru)

Colombia

• Almirante Padilla class frigate

References

Notes

External links

• Oto Melara products: medium calibres
• Italian 76 mm/62 (3") Compact, SR and USA 76 mm/62 (3") Mark 75 at NavWeaps

http://www.middle-east-online.com/english/?id=17626