Japanese submarine I-182

Last updated
I-176.jpg
Sister ship I-176 at sea, 1942
History
Naval ensign of the Empire of Japan.svg Empire of Japan
NameI-82
Builder Yokosuka Naval Arsenal, Yokosuka,  Japan
Laid down10 November 1941
RenamedI-182 on 20 May 1942
Launched30 May 1942
Completed10 May 1943
FateLost early September 1943 (see text)
Stricken1 December 1943
General characteristics
Class and type Kaidai type, KD7-class
Displacement
  • 1,862 t (1,833 long tons) surfaced
  • 2,644 t (2,602 long tons) submerged
Length105.5 m (346 ft 2 in)
Beam8.25 m (27 ft 1 in)
Draft4.6 m (15 ft 1 in)
Installed power
  • 8,000  bhp (5,966 kW) (diesels)
  • 1,800 hp (1,342 kW) (electric motors)
Propulsion
Speed
  • 23 knots (43 km/h; 26 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 depth80 m (262 ft)
Complement86
Armament

I-182 (originally I-82) was am Imperial Japanese Navy Kaidai-type cruiser submarine of the KD7 sub-class commissioned in 1943. During World War II, she was lost in 1943 while on her first war patrol.

Contents

Design and description

The submarines of the KD7 sub-class were medium-range attack submarines developed from the preceding KD6 sub-class. They displaced 1,862 metric tons (1,833 long tons) surfaced and 2,644 metric tons (2,602 long tons) submerged. The submarines were 105.5 meters (346 ft 2 in) long and had a beam of 8.25 meters (27 ft 1 in) and a draft of 4.6 meters (15 ft 1 in). They had a diving depth of 80 m (262 ft) and a complement of 86 officers and crewmen. [1]

For surface running, the submarines were powered by two 4,000- brake-horsepower (2,983 kW) diesel engines, each driving one propeller shaft. When submerged, each propeller was driven by a 900-horsepower (671 kW) electric motor. The submarines could reach 23 knots (43 km/h; 26 mph) on the surface and 8 knots (15 km/h; 9.2 mph) submerged. On the surface, the KD7s had a range of 8,000 nautical miles (15,000 km; 9,200 mi) at 16 knots (30 km/h; 18 mph); submerged, they had a range of 50 nmi (93 km; 58 mi) at 5 knots (9.3 km/h; 5.8 mph). [2]

The submarines were armed with six internal 53.3 cm (21.0 in) torpedo tubes, all in the bow. They carried one reload for each tube, a total of 12 torpedoes. They were originally intended to be armed with two twin-gun mounts for the 25 mm (1.0 in) Type 96 anti-aircraft gun, but a 120 mm (4.7 in) deck gun was substituted for one 25 mm mount during construction. [3]

Construction and commissioning

I-182 was laid down at the Yokosuka Naval Arsenal in Yokosuka, Japan, on 10 November 1941 as I-82. [4] Renamed I-182 on 20 May 1942, [4] she was launched on 30 May 1942. [4] She was completed and commissioned on 10 May 1943. [1] [4] [5]

Service history

First war patrol

I-182 departed Sasebo, Japan, on 8 August 1943 bound for Truk Atoll in the Caroline Islands, which she reached on 15 August 1943. [4] [5] She got underway from Truk on 22 August 1943 [4] [5] to begin her first war patrol, assigned a patrol area in the vicinity of Espiritu Santo [4] in the New Hebrides. [4] [5] She did not return from her patrol.

Loss

The exact circumstances of I-182′s loss remain unknown. I-182 and the submarine I-20 both were patrolling in the vicinity of the New Hebrides at the time, and neither returned. [5] [6] United States Navy forces reported two successful antisubmarine attacks off Espiritu Santo in early September 1943. [5] [6]

The first action took place on 1 September 1943, when the destroyer USS Wadsworth (DD-516), operating as part of a hunter-killer group, began a search for a reported Japanese submarine off Espiritu Santo at 10:55. [5] After searching on a north-south axis, she picked up a strong sonar contact at 13:00, [5] and dropped a pattern of ten depth charges set to explode at an average depth of 150 feet (46 m). [5] The attack produced no signs of success, so Wadsworth commenced a second attack, with her depth charges set for an average of 250 feet (76 m). [5] The submarine turned to port just before Wadsworth launched the depth charges, then headed south before turning northeast, creating an underwater wake that degraded Wadsworth′s sonar detection capability. [5] Wadsworth made several attack runs without dropping depth charges before firing a deep pattern set to explode at an average depth of 425 feet (130 m). [5] This resulted in a very large air bubble rising to the surface, but no other sign of a submarine in distress. [5] Wadsworth continued to pursue the submarine, which maneuvered to create more underwater turbulence in an attempt to defeat Wadsworth′s sonar. [5] Wadsworth dropped a final pattern of ten depth charges set to explode at an average depth of 250 feet (76 m), then turned east and opened the range. [5] A PBY Catalina flying boat reported debris and a 400-by-600-yard (370 by 550 m) oil slick that smelled like diesel fuel on the surface just south of the location of Wadsworth′s final attack. [5] Wooden debris also was sighted on the surface at 15°38′S166°57′E / 15.633°S 166.950°E / -15.633; 166.950 . [5]

The second action occurred on 3 September 1943, when the destroyer USS Ellet (DD-398) conducted a sweep for a reported Japanese submarine off Espiritu Santo. [6] Ellet picked up a radar contact at a range of 13,000 yards (11,900 m) at 19:35, closed to a range of about 5,000 yards (4,600 m), and challenged the unseen contact with a visual signal. [6] After Ellet received no reply, she illuminated the area with star shells. [6] The target disappeared from radar at a range of 3,400 yards (3,100 m), but Ellet then picked up a sonar contact at a range of 3,000 yards (2,700 m). [6] Between 20:12 and 20:38 Ellet conducted a series of depth charge attacks. [6] She lost sonar contact at 20:59, and at dawn on 4 September 1943 a large oil slick and debris were sighted on the surface at 13°10′S165°28′E / 13.167°S 165.467°E / -13.167; 165.467 . [6]

The submarines Wadsworth and Ellet sank remain unidentified. [5] [6] It seems likely that one of them was I-182 and the other I-20. [6] [5]

On 15 September 1943, the Japanese sent I-182 orders to return to Truk, but she did not acknowledge the signal. [5] On 22 October 1943, the Imperial Japanese Navy declared I-182 lost with her entire crew of 87 men off Espiritu Santo. [4] [5] The Japanese struck her from the Navy list on 1 December 1943. [4]

Notes

  1. 1 2 Carpenter & Polmar, p. 105
  2. ↑ Chesneau, p. 199
  3. ↑ Bagnasco, pp. 183, 186
  4. 1 2 3 4 5 6 7 8 9 10 I-182 ijnsubsite.com 16 June 2018 Accessed 18 June 2022
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Hackett, Bob; Kingsepp, Sander (6 February 2004). "IJN Submarine I-182: Tabular Record of Movement". combinedfleet.com. Retrieved 18 June 2022.
  6. 1 2 3 4 5 6 7 8 9 10 Hackett, Bob; Kingsepp, Sander (20 July 2017). "IJN Submarine I-20: Tabular Record of Movement". combinedfleet.com. Retrieved 19 August 2020.

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References

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