Based upon a Vickers design, these guns were manufactured in Spain by Carraca. They were used in various mountings on most of the light cruisers built in the 1920s and 1930s. Built to Vickers Patterns Mark T and Mark U and were of built-up construction.

Gun Characteristics

Designation 6"/50 (15.2 cm) Vickers-Carraca
Ship Class Used On Navarra, Mendez Nuñez and Principe Alfonso Classes
Date Of Design about 1915
Date In Service 1923
Gun Weight 8.6 tons (8.74 mt)
Gun Length oa 309.7 in. (7.867 m)
Bore Length 300 in (7.620 m)
Rifling Length 261.7 in (6.648 m)
Grooves N/A
Lands N/A
Twist N/A
Chamber Volume 1,550 in3 (25.4 dm3)
Rate Of Fire about 5 - 7 rounds per minute


Type Bag
Projectile Types and Weights AP: 100 lbs. (45.4 kg)
HE: 99.2 lbs. (45 kg)
Bursting Charge N/A
Projectile Length N/A
Propellant Charge 33 lbs. (15 kg)
Muzzle Velocity 2,953 fps (900 mps)
Working Pressure N/A
Approximate Barrel Life N/A
Ammunition stowage per gun N/A


Range with 99.2 lbs. (45 kg) HE
Elevation Distance
15 Degrees about 20,000 yards (18,290 m)
35 Degrees about 22,300 yards (20,400 m)

Mount/Turret Data

Designation Single Splinter Shielded Mount: Navarra (9) 1, Mendez Nuñez (6) 2 and Principe Alfonso (2)

Twin Splinter Shielded Mounts: Principe Alfonso (3)

Weight N/A
Elevation Navarra and Mendez Nunez: -5 / +15 degrees
Principe Alfonso: -10 / +35 degrees
Elevation Rate N/A
Train about +150 / -150 degrees
Train Rate N/A
Gun recoil N/A
Loading Angle N/A
  • ^When first commissioned, Navarra had only her aftermost gun on the centerline. When she was rebuilt in 1936 three guns were removed, but the remainder were all relocated on the centerline.
  • ^Mendez Nuñez was rearmed with eight 12 cm/45 (4.7") Vickers-Armstrong Mark F guns when converted to an AA cruiser.

External Pictures


"Naval Weapons of World War Two" by John Campbell
"Cruisers of World War Two" by M.J. Whitley
Tony DiGiulian's personal files

Page History

05 September 2006 - Benchmark
26 December 2015 - Changed Vickers Photographic Archive links to point at Wayback Archive and redid photograph
26 November 2021 - Converted to HTML 5 format