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Naval History and Heritage Command #NH 82098
| Tonnage | 2890 tons standard displacement |
| Dimensions | 455'8" by 39'6" by 11'10" 138.9m by 12.04m by 3.58m |
| Maximum speed | 35.5 knots |
| Complement | 328 |
| Armament | 2x1, 2x2
5.5"/50 guns 1 3"/40 AA gun 2 13mm/76 machine guns 2x2 24" torpedo tubes (1 reload) 48 Type 1 mines |
| Protection | 349.0 tons 1.5" (38mm) internal NVNC belt inclined -10 degrees plus 0.75" (20mm) HT outer plating 1" (25mm) NVNC armored deck 1.25" (32mm) NVNC uptakes 0.4" (10mm) HT turret front |
| Machinery |
3-shaft Mitsubishi-Parsons-Gihon
geared turbines
(57,900 shp) 8 Kanpon boilers |
| Bunkerage | 916 tons fuel oil |
| Range | 5500 nautical miles (10,200 km) at 10 knots 3310 nautical miles (6130 km) at 14 knots |
| Modifications |
1943: Two 5.5" guns removed and
the light antiaircraft
increased to 4x3 25mm/60
AA guns and 8x1 13/76
AA guns. Displacement increased to 4448 tons. |
The Yubari was a 1923
experiment in squeezing the most
possible ship into the
smallest possible displacement to comply with
the naval
treaties
of the 1920s. The result was, predictably, more like an
overpriced if powerful
destroyer
than
a light cruiser. The protection system was designed only against U.S. 4" destroyer shells. Her armor
belt was inclined the wrong way,
so that incoming
shells hit at a more perpendicular angle and were therefore more likely
to
penetrate. (No later Japanese cruiser repeated this
mistake.) However, as an
experiment in ultimate displacement economy, the Yubari
was a modest
success, and many of her design features were used in the Furukatas. She thus became the forerunner of the Japanese heavy cruiser force.
Significant weight was saved by giving the belt armor
no back plating and letting it contribute directly to the hull strength. The machinery was based on that of the Minekaze
destroyer class and machinery dispersal was good. The boiler exhausts
from both fire rooms were trunked into a single funnel and the enlarged
bridge centralized all command, communications, and fire control.
Yubari was
with Wake
Invasion Force (Kajioka)
when war broke out. She was torpedoed
on 27 April 1944 by Bluegill
off Palau.
References
CombinedFleet.com (accessed 2007-12-12)The Pacific War Online Encyclopedia © 2007, 2009, 2011, 2013 by Kent G. Budge. Index
