Otobreda 76 mm

Otobreda 76 mm
Otobreda 76 mm
	;
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	7500 kg (without ammunition); 12.34 kg (complete round)
Shell	76 mm × 900mm (complete round)
Caliber	62 caliber 76 mm
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
Maximum range	Compact: 20,000 m (HE round at 45°); Super Rapid: 30,000 m (HE round at 45°)
Feed system	Magazine:; Compact: 80 ready rounds on gun mount; Super Rapid: 85 ready rounds on gun mount

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The Otobreda 76 mm gun is a widely used naval artillery piece built by the Italian company Otobreda. A vehicle-mounted version known as the Otomatic was built for the SPAAG role, although this was not put into production.

It 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, 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.[1]

OTO-Melara 76 mm gun onboard F221 Hessen, a Sachsen class frigate.

On the Norwegian Fridtjof Nansen–class frigates, the Oto Melara is equipped with a stealth cupola to reduce radar cross section/

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.

[edit] 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