Japanese submarine I-55 (1943)

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History
Empire of Japan
NameSubmarine No. 628
Builder
Kure Navy Yard, Kure, Hiroshima
Laid down15 June 1942
RenamedI-55 on 1 November 1942
Launched20 April 1943
Completed20 April 1944
Commissioned20 April 1944
FateMissing after 13 July 1944 (see text)
Stricken10 October 1944
General characteristics
Class and type
Type C3 submarine
Displacement
  • 2,605 tonnes (2,564 long tons) surfaced
  • 3,702 tonnes (3,644 long tons) submerged
Length108.7 m (356 ft 8 in) overall
Beam9.3 m (30 ft 6 in)
Draft5.1 m (16 ft 9 in)
Installed power
Propulsion
Speed
  • 17.7 knots (32.8 km/h; 20.4 mph) surfaced
  • 6.5 knots (12.0 km/h; 7.5 mph) submerged
Range
  • 27,000 nmi (50,000 km; 31,000 mi) at 12 knots (22 km/h; 14 mph) surfaced
  • 105 nmi (194 km; 121 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged
Test depth100 m (330 ft)
Crew94
Armament

The second I-55 was one of three

Marianas campaign during World War II
.

Design and description

The Type C3 submarines were derived from the earlier C2 sub-class although with fewer torpedo tubes, an additional deck gun, and less-powerful engines to extend their range. They displaced 2,605 tonnes (2,564 long tons) surfaced and 3,702 tonnes (3,644 long tons) submerged. The submarines were 108.7 meters (356 ft 8 in) long, had a beam of 9.3 meters (30 ft 6 in) and a draft of 5.1 meters (16 ft 9 in). They had a diving depth of 100 meters (330 ft).[1]

For surface running, the boats were powered by two 2,350-

propeller shaft. When submerged each propeller was driven by a 600-horsepower (447 kW) electric motor. They could reach 17.7 knots (32.8 km/h; 20.4 mph) on the surface and 6.5 knots (12.0 km/h; 7.5 mph) underwater.[2] On the surface, the C3s had a range of 27,000 nautical miles (50,000 km; 31,000 mi) at 12 knots (22 km/h; 14 mph); submerged, they had a range of 105 nmi (194 km; 121 mi) at 3 knots (5.6 km/h; 3.5 mph).[3]

The boats were armed with six internal bow 53.3 cm (21.0 in) torpedo tubes and carried a total of 19

Construction and commissioning

Ordered under the

laid down on 15 June 1942 with the name Submarine No. 628.[4] On 1 November 1942, she was provisionally attached to the Kure Naval District and numbered I-55;[4] she was the second Japanese submarine of that number, the first I-55 having been renumbered I-155 on 20 May 1942.[5] Launched on 20 April 1943,[4] she was completed and commissioned one year later, on 20 April 1944.[4]

Service history

Upon commissioning, I-55 was based in the Kure Naval District and assigned to Submarine Squadron 11 in the

Marianas campaign had begun with the U.S. invasion of Saipan on 15 June.[4] Before her conversion could begin, I-55 got underway from Kure on 30 June 1944,[4] called at Yokosuka from 1 to 6 July 1944,[4] and then departed for Guam towing an Unpoto gun container,[4] a 70-foot (21.3 m) sled that could carry up to 15 tons of cargo, usually in the form of three Type 96 15-centimeter (5.9 in) howitzers and ammunition for them.[6]

While she was at sea on 10 July 1944, I-55 was reassigned to Submarine Division 15 in the Advance Force,[4] and on 13 July she received orders to abort her supply mission to Guam and proceed to Tinian to rescue the staff of the 1st Air Fleet there.[4] She cast the Unpoto container adrift[4] and headed for Tinian. At 00:40 Japan Standard Time on 13 July, she transmitted a message to 6th Fleet Headquarters estimating that she would arrive off Tinian on 15 July.[4] The Japanese never heard from her again.

At 21:20 on 13 July 1944, an American

bow, then heard a heavy underwater explosion at 08:05 that shook the ship, followed by bubbles rising to the surface that made the water appear to boil.[4] William C. Miller dropped a third pattern of 13 depth charges at 0806, sinking the submarine.[4] An oil slick and debris covered the surface, and William C. Miller steamed into the slick and recovered pieces of cork insulating material, splintered wooden decking, and a seaman's cap at 15°18′N 144°26′E / 15.300°N 144.433°E / 15.300; 144.433.[4]

It remains a matter of dispute as to whether William C. Miller sank I-55 or the submarine

antisubmarine action on 28 July 1944.[7][8]

On 15 July 1944, the Imperial Japanese Navy declared I-55 to be presumed lost with all 112 hands off Tinian.[4] She was stricken from the Navy list on 10 October 1944.[4]

Notes

  1. ^ Bagnasco, p. 192
  2. ^ Chesneau, p. 201
  3. ^ a b Carpenter & Dorr, p. 110
  4. ^ a b c d e f g h i j k l m n o p q r s t u v w Hackett, Bob; Kingsepp, Sander (2013). "IJN Submarine I-55: Tabular Record of Movement". combinedfleet.com. Retrieved 22 August 2020.
  5. ^ Hackett, Bob; Kingsepp, Sander (2015). "IJN Submarine I-155: Tabular Record of Movement". combinedfleet.com. Retrieved 22 August 2020.
  6. ^ Hackett, Bob; Kingsepp, Sander (2017). "IJN Submarine I-38: Tabular Record of Movement". combinedfleet.com. Retrieved 3 September 2020.
  7. ^ Naval History and Heritage Command Dictionary of American Naval Fighting Ships USS Wyman
  8. ^ Naval History and Heritage Command Dictionary of American Naval Fighting Ships Reynolds II (DE-42)

References

External links