The Pacific War Online Encyclopedia
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|  ONI 222 |
| Tonnage | 10,000 tons standard displacement |
| Dimensions | 607'4" by 61'8" by 22'11" 185.12m by 18.80m by 6.99m |
| Maximum speed | 33 knots |
| Complement | 888 |
| Aircraft | 2
catapults 4 seaplanes |
| Armament | 5x3 6"/47
guns 4x2 5"/38 dual-purpose guns 8 machine guns |
| 1798 tons: 5.625" (15.88mm) machinery belt tapering to 3.25" (83mm) and backed by 25lb STS steel 5" (127mm) bulkheads tapering to 2" (51mm) 2" (51mm) forward magazine internal longitudinal protection 4.7" (120mm) aft magazine internal longitudinal protection 3.7" (93mm) magazine bulkheads 2" (51mm) armor deck 6.5"/1.25"/2" (165mm/32mm/51mm) turret front/side and rear/roof 6" (152mm) barbettes 5" (127mm) conning tower |
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| Machinery |
4-shaft Parsons geared turbine
(100,000 shp) 8 Babcock & Wilcox boilers |
| Bunkerage | 2000 tons fuel oil |
| Range | 7080 nautical miles (13,110 km) at 15 knots |
| Modifications |
1941-12 or 1942-1: Added 2x4 1.1"/75 AA guns, 8x1 20mm Oerlikon AA guns, FC radar. Late 1942: Light AA upgraded to 4x4, 4x2 40mm Bofors AA guns and 12x1 20mm Oerlikons. SG, SC, and two FD radars installed. 1943: Radar upgraded to SK-2, Mark 8, 2x Mark 28 radars 1945: Light AA consisted of 4x4, 6x2 40mm Bofors guns and 10x2 20mm Oerlikon guns. |
The St. Louises
were completed in 1938. They were
very similar to the Brooklyns
except for more compact machinery, allowing better machinery dispersal,
and a somewhat different arrangement of
the after superstructure. The eight single 5"25 guns were replace with four twin 5"/38 turrets. Like the Brooklyns,
they featured a very
heavy armament and fair armor protection on a flimsy hull.
| Helena | Pearl Harbor | Sunk in surface action on 1943-7-6 off New Georgia |
| Pearl Harbor |
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References
Gogin (2010; accessed 2013-4-11)
The Pacific War Online Encyclopedia © 2007, 2009, 2012-2013, 2015 by Kent G. Budge. Index
