The Pacific War Online Encyclopedia
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Naval Historical Center #NH 82404. Cropped
|Tonnage||11,215 tons standard displacement
|Dimensions||661'1" by 60'8" by 21'2"
201.50m by 18.49m by 6.45m
|Maximum speed||35 knots|
Kure Type 2 Model 5 catapults
4x2 4.7"/45 dual-purpose guns
6x2 25mm AA guns
4x3 Long Lance torpedo tubes
4" to 0.7" (100mm to 18mm) NVNC and Dücol machinery belt sloped 20 degrees
5.7" to 2.2" (145mm to 55mm) NVNC magazine belt
6.9" to 2.6" (175mm to 67mm) NVNC bulkheads
2.6" to 1.2" (65mm to 31mm) CNC middle deck
2.2" (56mm) lower deck over magazines
3.9"/1.4"/1.2" (100mm/35mm/30mm) steering sides/ends/crown
4.1" (105mm) max uptakes
1" (25mm) NVNC barbette
1" (25mm) NVNC turret
5.1" to 2.6" (130 mm to 70mm) side/1.6" (40mm) overhead conning tower
Lower belt as torpedo holding bulkhead. Torpedo system depth 10'10" (3.3m).
||4-shaft geared turbine (152,000
8 Kampon boilers
|Bunkerage||2163 tons fuel oil|
|Range||9000 nautical miles (17,000 km) at 18 knots|
The Tones were completed in 1938-39 in the Mitsubishi Nagasaki yards. Authorized in 1932, they were to be 8,450-ton cruisers resembling the Mogamis, but dissatisfaction with that design led to a new and quite different kind of ship. The design was also influenced by the Tomozuru Incident, which led to careful consideration of seaworthiness.
The Tones crowded all their main guns onto the forward part of the ship, a measure intended to reduce dispersion of shot. It also freed the rear of the ships for extensive plane handling facilities and resulted in ships that were unusually habitable. They had excellent range and speed and spent most of the early part of the war escorting, and scouting for, the main carrier forces. On the other hand, the unusual turret arrangement yielded an ugly profile and poor firing arcs.
The ships were originally to be partially welded.
However, because of concerns about hull strength, Chikuma was almost entirely
riveted. The design was originally announced as using 6.1" (155mm)
guns, but following the repudiation of the naval disarmament
treaties at the end of 1936, the ships were completed with 8"
(203mm) guns quickly enough to raise suspicions that the ships had been
designed for such guns from the start.
Though designed to carry up to eight seaplanes, it
appears that the ships never carried more than five, and this was
reduced to four later in the war.
|Sunk by aircraft 1945-7-24 at
|Sunk by aircraft 1944-10-25
CombinedFleet.com (accessed 2007-7-7)
Gogin (2010; accessed 2013-2-14)
Lacroix and Wells (1997)
The Pacific War Online Encyclopedia © 2007, 2009, 2011, 2013 by Kent G. Budge. Index
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