Japanese cruiser Nachi

Nachi photographed soon after her full-power trials in November 1928
History
Empire of Japan
Name:	Nachi
Namesake:	Mount Nachi, Wakayama, Japan
Ordered:	1923
Builder:	Kure Naval Arsenal
Cost:	21.9 million yen
Laid down:	26 November 1924
Launched:	15 June 1927
Commissioned:	28 November 1928
Struck:	20 January 1945
Fate:	Sunk, 5 November 1944
General characteristics
Class and type:	Myōkō-class cruiser
Displacement:	13,300 long tons (13,500 t)
Length:	201.7 m (661 ft 9 in)
Beam:	20.73 m (68 ft 0 in)
Draft:	6.32 m (20 ft 9 in)
Installed power:	130,000 shp (97,000 kW)
Propulsion:	4 × geared steam turbines 12 × boilers 4 × shafts
Speed:	36 kn (67 km/h; 41 mph)
Range:	8,000 nmi (15,000 km; 9,200 mi) at 14 kn (26 km/h; 16 mph)
Complement:	773
Armament:	10 × 203 mm (8.0 in) guns (5x2) 6 × 120 mm (4.7 in) guns (to 1934) or 8 × 127 mm (5.0 in) guns (from 1935) 2 × 13 mm (0.51 in) machine guns 12 × 610 mm (24 in) torpedo tubes
Armor:	Main belt: 100 mm (3.9 in) Main deck: 37 mm (1.5 in) Turrets: 25 mm (0.98 in) Barbettes: 75 mm (3.0 in)
Aircraft carried:	2 × floatplanes
Service record
Part of:	Imperial Japanese Navy
Operations:	Pacific War Battle of the Java Sea (1942) Second Battle of the Java Sea (1942) Battle of the Komandorski Islands (1943) Battle of Surigao Strait (1944)

Nachi (那智^?) was the second vessel completed of the four-member Myōkō class of heavy cruisers of the Imperial Japanese Navy (IJN), which were active in World War II. The other ships of the class were Myōkō, Ashigara, and Haguro. She was named after a mountain in Wakayama Prefecture.

The Myōkō class was approved under the 1922 -1929 Fleet Modernization Program as the first heavy cruisers to be built by Japan within the design constraints imposed by the Washington Naval Treaty, and was the first of the “10,000 ton” cruisers built by any nation.Naval architect Vice admiral Yuzuru Hiraga was able to keep the design from becoming dangerously top-heavy in its early years by continually rejecting demands from the Imperial Japanese Navy General Staff for additional equipment to the upper decks. However, during modifications and rebuildings in the 1930s, the final displacement rose to 15,933 tons, well over the treaty limits.

The Myōkō class displaced 13,500 t (13,300 long tons), with a hull design based on an enlarged version of the Aoba-class cruiser. Nachi was 203.8 metres (669 ft) long, with a beam of 19.5 metres (64 ft), draft of 6.36 metres (20.9 ft) and were capable of 35.5 knots.

Propulsion was by 12 Kampon boilers driving four sets of single-impulse geared turbine engines, with four shafts turning three-bladed propellers. The ship was armored with a 102 mm (4.0 in) side belt, and 35 mm (1.4 in) armored deck; however, the bridge was not armored.