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.
| 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 |
| Elevation | Distance |
|---|---|
| 15 Degrees | about 20,000 yards (18,290 m) |
| 35 Degrees | about 22,300 yards (20,400 m) |
| 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.
"Naval Weapons of World War Two" by John Campbell
"Cruisers of World War Two" by M.J. Whitley
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Tony DiGiulian's personal files
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