Japanese submarine I-176

History
Empire of Japan
Name:	I-176
Ordered:	1939
Builder:	Kure Naval Arsenal
Laid down:	June 22, 1940
Launched:	June 7, 1941
Commissioned:	August 4, 1942
In service:	1942–44
Out of service:	May 15, 1944
Fate:	Sunk
General characteristics
Class and type:	Kaidai type, KD7-class
Displacement:	1,630 long tons (1,656 t) surfaced 2,602 long tons (2,644 t) submerged
Length:	105.5 m (346 ft)
Beam:	8.25 m (27.1 ft)
Draft:	4.6 m (15 ft)
Propulsion:	2 × Kampon Mk.1B Model 8 diesels, 2 shafts; 8,000 bhp Electric motors: 1,800 shp
Speed:	23.1 knots (42.8 km/h; 26.6 mph) surfaced 8 knots (15 km/h; 9.2 mph) submerged
Range:	8,000 nmi (15,000 km; 9,200 mi) at 16 knots (30 km/h; 18 mph) surfaced 50 nmi (93 km; 58 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth:	80 m (260 ft)
Complement:	86
Armament:	6 × 533 mm forward torpedo tubes 12 × Type 95 torpedoes 1 × 120 mm (4.7 in) L/40 11th Year Type Naval gun 2 × Type 96 25mm AA guns

The Japanese submarine I-176 (I-76, until 20 May 1942) was a "Kaidai" type of cruiser submarine active in World War II. A KD7 sub-class boat, I-176 was built for the Imperial Japanese Navy (IJN) in the early 1940s.

The most successful submarine of her class, she severely damaged the heavy cruiser USS Chester in October 1942 and sunk the submarine USS Corvina in November 1943, the only Japanese submarine to sink one of her American counterparts. I-176 was sunk in May 1944 in the western Pacific by the American destroyers Franks, Haggard and Johnston.

I-176 was ordered in 1939 but construction did not begin until 1941 at the Kure Naval Arsenal in Hiroshima prefecture. On completion in 1942 the vessel was renamed from I-76 to I-176 and was sent initially to Truk in September 1942. On October 13, an American carrier group was sighted off the Solomon Islands. Japanese submarines in the area, including the I-176, were ordered to travel north to carry out an attack but the I-176 was the only Japanese vessel to successfully engage one of the US vessels. She attacked USS Chester (CA-27) on October 20, 1942, at 13°31′S 163°17′E / 13.517°S 163.283°E / -13.517; 163.283 some 120 miles (190 km) southeast of the island of Makira (then known as San Cristobal). The cruiser was badly damaged, suffering 11 killed and 12 wounded. After returning to Sydney, Australia to carry out repairs, Chester had to withdraw to Norfolk, Virginia for repairs which kept her out of the war until September 1943.

...
Wikipedia