Updated 14 January 2011

USS Brooklyn CL-40 in June 1943
These ships carried fifteen 6"/47 (15.2 cm) guns in five triple turrets
U.S. Naval Historical Center Photograph # 80-G-383754

USS Brooklyn CL-40
Forward turrets after bombarding Sicily in June 1943
U.S. Naval Historical Center Photograph # 80-G-42522

USS Honolulu CL-48 in February 1939
U.S. Naval Historical Center Photograph # NH 53562

Side view of Turret II on USS Savannah CL-42 in September 1943
Detail from U.S. Naval Historical Center Photograph NH # 80-G-54357

USS Fargo CL-106 laid up at Philadelphia NY in 1962
Ship at left is USS Portsmouth CL-102
Detail from U.S. Naval Historical Center Photograph NH # 72662

USS Galveston CLG-3 firing on targets in Vietnam in August 1965
Note the communications antennas that have been added
U.S. Naval Historical Center Photograph NH # 1113593

Overhead view of bow turrets on USS Oklahoma City CLG-5 in October 1963
This ship had three of her 6" (15.2 cm) turrets removed upon her conversion to a missile ship
Detail from U.S. Naval Historical Center Photograph NH # 98684

Close-up of bow turret on USS Oklahoma City CLG-5 in 1972
Note that the paint on the gun barrels is blistered, a result of prolonged firing off Vietnam
U.S. Naval Historical Center Photograph NH # 98680

USS St. Louis CL-49 being regunned in 1943
As was typical of US designs of this period, guns could be removed without dismantling the gunhouse
U.S. Naval Historical Center Photograph NH # 80-G-K-15536

Dimensional drawing of 6"/47 (15.2 cm) Turret used on Brooklyn (CL-40) and St. Louis (CL-49) classes
Turret used on Cleveland (CL-55) and Fargo (CL-106) was similar but 1" (2.54 cm) taller above the trunnions
USN Sketch

Cut-away sketch of 6"/47 (15.2 cm) HC Projectile

Loading a 6"/47 (15.2 cm) powder canister aboard USS Oklahoma City CLG-5 about 1972
U.S. Naval Historical Center Photograph NH # 98681

Cutaway sketch of 6"/47 (15.2 cm) ammunition

27 November 2008 - Benchmark
14 January 2011 - Added cutaway sketch