(Naka, Spring 1941)
• 7 × 140 mm (5.5 in) guns (7×1)
• 4 × 25 mm (0.98 in) AAGs (2×2)
• 2 × 13 mm (0.51 in) AAGs (1×2)
• 8 × 610 mm (24 in) TTs (2×4)
• 16 × 610 mm (24 in) torpedoes
• some depth charges
(Naka, March 1943)
• 6 × 140 mm (5.5 in) guns (6×1)
• 2 × 127 mm (5.0 in) AAGs (1×2)
• 10 × 25 mm (0.98 in) AAGs (2×2 + 2×3)
• 2 × 13 mm (0.51 in) AAGs (1×2)
• 8 × 610 mm (24 in) TTs (2×4)
• 16 × 610 mm (24 in) torpedoes
• some depth charges
Armor:
Deck: 29 mm (1.1 in)
Belt: 64 mm (2.5 in)
Aircraft carried:
1 carrier-born fighter
1 floatplane (1933)
Aviation facilities:
1 flying-off platform
1 catapult (1933)
The Sendai class cruisers(川内型軽巡洋艦,Sendai-gata keijunyōkan?) were a class of light cruisers operated by the Imperial Japanese Navy. Named after rivers, they participated in numerous actions during the Pacific War and were used mainly used as destroyer flotilla leaders.
The Sendai class light cruisers were a development of the Nagara class. Their boilers were better located and they had four funnels instead of three. Each ship was designed with a flying-off platform and hangar, but did not actually carry aircraft until a catapult system was installed in 1929.
Three Sendai class light cruisers were constructed in Japan during the 1920s, four Sendai vessels were laid down, but the last, the Kako was scrapped on the slipway in accordance to the regulations of the 1922 Washington Naval Treaty. All three were sunk during World War II.