Otobreda 127/64

OTO 127/64 LW - VULCANO System
The OTO 127/64 LW gun mount on Italian OPV Francesco Morosini
TypeNaval gun
Place of originItaly
Production history
DesignerOto Melara
Designed2005[1]
ManufacturerOto Melara (now Leonardo S.p.A.)
Produced2012[1]
Specifications
MassEmpty: 33 t (73,000 lb) [2]
Barrel length320 in (8.1 m)[3]

Shell127x835mmR
shell weight: 29 to 31 kg (64 to 68 lb)[3]
Caliber127 mm (5.0 in)
Rate of fire32 rpm[3]
Muzzle velocity808 m/s (2,650 ft/s)[3]
Effective firing range30 km (19 mi) VULCANO: 70–120 km (43–75 mi)
Maximum firing range120 km (75 mi)[3]
External image
Hi-res image of Oto Melara 127/64
image icon Publicity shot of the Oto Melara 127/64

The OTO 127/64 LW (light-weight) Gun assembly is a rapid-fire gun mount suitable for installation on large and medium size ships. It also has a version for coastal defense, intended for surface fire and naval gunfire support as main role and anti-aircraft fire as secondary role. The compactness of the gun feeding system makes installation on narrow section crafts possible.

The gun can fire all standard 127 mm (5 inch) ammunition including Vulcano long range guided ammunition. By that, it is officially branded as the OTO 127/64 LW - VULCANO System by Leonardo for marketing.

Modular automatic feeding magazines allow the firing of up to four different and immediately selectable types of ammunition; the magazines (four drums, each with one shell ready to fire and 13 other ammunitions on store) can be reloaded while the mount is in operation.

An ammunition manipulator system is available to transport projectiles and propelling charges from the main ammunition store to the feeding magazines, which are automatically reloaded. Ammunition flow is reversible. Rounds can be automatically unloaded from the gun. Digital and analog interfaces are available for connecting to a vessel's combat management system, including a CORBA based network interface.[4]

The 127/64 LW naval gun mounts includes a Vulcano module, which acts twofold:

  • Programmer for ammunition's fuse and guidance system.
  • Mission Planning and Execution for Naval Fire Support Action (firing solutions, selection of ammunition, definition of trajectories and firing sequences, ballistic computations accounting for ammunition type, etc.), as a standalone or in interaction with ship's Network Centric System.
  1. ^ a b "PROCUREMENT AND MODERNISATION PROGRAMMES AND ACTIVITIES" (PDF). Archived from the original (PDF) on 2014-03-27. Retrieved 2012-07-11.
  2. ^ (https://electronics.leonardo.com/documents/16277707/18425031/Cannone+OTO+127_64+LW.pdf?t=1671010931795 Leonadro marketing brochure
  3. ^ a b c d e Tony DiGiulian. "Italy 127 mm/64 (5") LW". NavWeaps. Retrieved 2022-08-20.
  4. ^ "127/64 LIGHT WEIGHT NAVAL GUN MOUNT" (PDF). Oto Melara. p. 1. Archived from the original (PDF) on 17 January 2009.