An OTO-Melara design, this automatic gun was used on Italian warships during the 1960s. The barrel used a water-spray system for cooling. The mounting is electrically powered and has a water-tight, splinter-proof shield.
This weapon has been replaced by the 76 mm/62 Compact and SR on modern ships.
Actual bore diameter was 76.2 mm (3.00").
| Designation | 76 mm/62 (3") M.M.I. |
|---|---|
| Ship Class Used On | Cruisers: Giuseppe Garibaldi (as rearmed), Andrea Doria and Vittorio Veneto classes
Destroyers: Impavido Frigates: Centauro, Bergamini, Alpino classes Corvettes: Pietro De Cristofaro class Patrol Boats: Cassiopea class |
| Date Of Design | About 1960 |
| Date In Service | 1963 |
| Gun Weight (tube and liner) | 1,686 lbs. (765 kg) |
| Gun Length oa | N/A |
| Bore Length | 186 in (4.724 m) |
| Rifling Length | 158 in (4.012 m) |
| Grooves | N/A |
| Lands | N/A |
| Twist | N/A |
| Chamber Volume | N/A |
| Rate Of Fire | 60 rounds per minute |
| Type | Fixed |
|---|---|
| Weight of Complete Round | 27.2 lbs. (12.34 kg) |
| Projectile Types and Weights | HE: 13.88 lbs. (6.296 kg) |
| Bursting Charge | N/A |
| Projectile Length | N/A
Complete Round: 35.45 in (90.04 cm) |
| Propellant Charge | 7.85 lbs. (3.56 kg) |
| Cartridge | 76.2 mm x 635.5 mm |
| Muzzle Velocity | 2,789 fps (850 mps) |
| Working Pressure | N/A |
| Approximate Barrel Life | N/A |
| Ammunition stowage per gun | N/A |
| Elevation | Distance |
|---|---|
| 45 degrees | 20,122 yards (18,400 m) |
| Effective Range | 8,700 yards (8,000 m) |
| AA @ 85 degrees | 13,200 feet (4,000 m) |
| Designation | Single Mounting
Giuseppe Garibaldi (8), Andrea Doria (8), Vittorio Veneto (8), Impavido (4), Bergamini (2), Alpino (6) and Cassiopea (1) Twin Mounting
|
|---|---|
| Weight | Single Mounting: 12 tons (12.1 mt)
Twin Mounting: N/A |
| Elevation | -15 / +85 degrees |
| Elevation Rate | 40 degrees per second |
| Train | 360 degrees |
| Train Rate | 70 degrees per second |
| Gun recoil | N/A |
- Elevation and traverse are electrically and hydraulically controlled with an emergency manual operation system. A single crewman is in the gunhouse with three men required to reload the ammunition system.
"Jane's Pocket Book 9: Naval Armament" edited by Denis Archer
"The Naval Institute Guide to World Naval Weapon Systems 1991/92" by Norman Friedman
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Marina Militare
26 May 2012 - Benchmark
16 December 2021 - Converted to HTML 5
13 June 2024 - Added Menon Mortar to photograph caption