I-42 was laid down on 27 April 1942 at the Sasebo Navy Yard at Sasebo, Japan, with the name Submarine No. 373.[1] Renamed I-43 on 25 September 1942 and provisionally attached to the Yokosuka Naval District that day,[1] she was launched on 25 October 1942.[1] Formally attached to the Yokosuka Naval District a year later on 25 October 1943,[1] she was completed and commissioned on 5 November 1943.[1]
On 9 February 1944, I-43 got underway from Kure to perform a special mission in which she was to transport Special Naval Landing Forces (SNLF) personnel from Saipan in the Mariana Islands to Truk as part of a build-up of forces for a planned Japanese counterlanding on the Green Islands.[1] While at sea, she was reassigned to Submarine Division 15 in the 6th Fleet on 11 February 1944.[1] She arrived at Saipan on 13 February 1944 and embarked 59 SNLF personnel there.[1] On 14 February 1944, she received orders from the 6th Fleet to proceed to Truk, and she put to sea that day with an estimated date of arrival at Truk of 16 February 1944.[1]
LossEdit
On 15 February 1944, I-43 was 280 nautical miles (520 km; 320 mi) east-southeast of Guam when the United States Navy submarine USS Aspro — operating submerged in the area in support of the upcoming Operation Hailstone, a major U.S. Navy raid on Truk — detected her propeller noises at 11:06.[1] At 11:21, Aspro′s commanding officer sighted I-43 heading south-southeast on the surface, zigzagging and making 17 knots (31 km/h; 20 mph) on a heading of 155 degrees true.[1] He identified her as an "I-9-class" submarine, and noted the number "443" — probably the Japanese character for "I" followed by "43" — and a hinomaru flag painted on her conning tower, as well as a large structure abaft her conning tower — apparently her waterproof Daihatsu — which he thought might be a midget submarine.[1]
Out of position for a submerged attack, Aspro allowed I-43 to pass, surfaced at 12:07, and began a lengthy, radar-assisted maneuver known to American submariners as an "end-around" to get herself into a favorable firing position ahead of I-43.[1] Finally ahead of I-43 that evening, Aspro fired four Mark XIV-3A torpedoes at her at a range of 2,100 yards (1,900 m) at 22:23.[1] At 22:24, two of them hit I-43, which exploded and sank by the stern at 10°23′N150°23′E / 10.383°N 150.383°E / 10.383; 150.383 (I-43).[1]Aspro′s crew heard several more explosions after I-43 sank, the last of them at 22:27.[1]
On 8 April 1944, the Imperial Japanese Navy declared I-43 to be presumed lost in the vicinity of Truk with the loss of all 166 men on board.[1] She was stricken from the Navy list on 30 April 1944.[1]
NotesEdit
^ abcdefghijklmnopqrstuvwHackett, Bob; Kingsepp, Sander (2016). "IJN Submarine I-43: Tabular Record of Movement". combinedfleet.com. Retrieved 19 August 2020.
^Hackett, Bob; Kingsepp, Sander (1 August 2016). "IJN Submarine I-184: Tabular Record of Movement". combinedfleet.com. Retrieved 19 June 2022.
SourcesEdit
Hackett, Bob & Kingsepp, Sander. IJN Submarine I-43: Tabular Record of Movement. Retrieved on September 5, 2020.
October 15, 2023
japanese, submarine, imperial, japanese, navy, type, submarine, completed, commissioned, 1943, served, world, sunk, during, first, deployment, february, 1944, historyjapannamesubmarine, 373buildersasebo, naval, arsenal, sasebo, japanlaid, down27, april, 1942re. I 43 was an Imperial Japanese Navy Type B2 submarine Completed and commissioned in 1943 she served in World War II and was sunk during her first deployment in February 1944 HistoryJapanNameSubmarine No 373BuilderSasebo Naval Arsenal Sasebo JapanLaid down27 April 1942RenamedI 43 on 25 September 1942Launched25 October 1942Completed5 November 1943Commissioned5 November 1943FateSunk by USS Aspro 15 February 1944Stricken30 April 1944General characteristicsClass and typeType B2 submarineDisplacement2 624 tons surfaced 3 700 tons submergedLength356 5 ft 108 7 m Beam30 5 ft 9 3 m Draft17 ft 5 2 m Propulsion2 diesels 11 000 hp 8 200 kW Electric motors 2 000 hp 1 500 kW Speed23 5 knots 43 5 km h surfaced 8 knots 15 km h submergedRange14 000 nautical miles 26 000 km at 16 knots 30 km h Test depth100 m 330 ft Boats amp landing craft carried1 x Daihatsu class landing craft added late 1943 Complement114Armament6 533 mm 21 in forward torpedo tubes 17 torpedoes 1 14 cm 5 5 in deck gun removed late 1943 Contents 1 Construction and commissioning 2 Service history 2 1 November 1943 February 1944 2 2 Loss 3 Notes 4 SourcesConstruction and commissioning EditI 42 was laid down on 27 April 1942 at the Sasebo Navy Yard at Sasebo Japan with the name Submarine No 373 1 Renamed I 43 on 25 September 1942 and provisionally attached to the Yokosuka Naval District that day 1 she was launched on 25 October 1942 1 Formally attached to the Yokosuka Naval District a year later on 25 October 1943 1 she was completed and commissioned on 5 November 1943 1 Service history EditNovember 1943 February 1944 Edit Upon commissioning I 43 was assigned to Submarine Squadron 11 1 After she completed her work ups her 140 millimeter 5 5 in deck gun was removed from her afterdeck and replaced by fittings that allowed her to carry a 46 foot 14 m waterproofed Daihatsu class landing craft abaft her conning tower 1 On 15 November 1943 she was reassigned to Submarine Division 11 in the 6th Fleet along with the submarines I 42 I 45 I 52 I 183 I 184 Ro 40 Ro 41 Ro 43 Ro 113 Ro 114 and Ro 115 1 In late November 1943 she took part in antisubmarine warfare exercises in the Iyo Nada in the Seto Inland Sea with I 42 I 184 Ro 40 Ro 113 and the submarine tender Chōgei 2 She moved from Sasebo to Yokosuka during December 1943 1 and from Yokosuka to Kure in January 1944 1 On 9 February 1944 I 43 got underway from Kure to perform a special mission in which she was to transport Special Naval Landing Forces SNLF personnel from Saipan in the Mariana Islands to Truk as part of a build up of forces for a planned Japanese counterlanding on the Green Islands 1 While at sea she was reassigned to Submarine Division 15 in the 6th Fleet on 11 February 1944 1 She arrived at Saipan on 13 February 1944 and embarked 59 SNLF personnel there 1 On 14 February 1944 she received orders from the 6th Fleet to proceed to Truk and she put to sea that day with an estimated date of arrival at Truk of 16 February 1944 1 Loss Edit On 15 February 1944 I 43 was 280 nautical miles 520 km 320 mi east southeast of Guam when the United States Navy submarine USS Aspro operating submerged in the area in support of the upcoming Operation Hailstone a major U S Navy raid on Truk detected her propeller noises at 11 06 1 At 11 21 Aspro s commanding officer sighted I 43 heading south southeast on the surface zigzagging and making 17 knots 31 km h 20 mph on a heading of 155 degrees true 1 He identified her as an I 9 class submarine and noted the number 443 probably the Japanese character for I followed by 43 and a hinomaru flag painted on her conning tower as well as a large structure abaft her conning tower apparently her waterproof Daihatsu which he thought might be a midget submarine 1 Out of position for a submerged attack Aspro allowed I 43 to pass surfaced at 12 07 and began a lengthy radar assisted maneuver known to American submariners as an end around to get herself into a favorable firing position ahead of I 43 1 Finally ahead of I 43 that evening Aspro fired four Mark XIV 3A torpedoes at her at a range of 2 100 yards 1 900 m at 22 23 1 At 22 24 two of them hit I 43 which exploded and sank by the stern at 10 23 N 150 23 E 10 383 N 150 383 E 10 383 150 383 I 43 1 Aspro s crew heard several more explosions after I 43 sank the last of them at 22 27 1 On 8 April 1944 the Imperial Japanese Navy declared I 43 to be presumed lost in the vicinity of Truk with the loss of all 166 men on board 1 She was stricken from the Navy list on 30 April 1944 1 Notes Edit 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 2016 IJN Submarine I 43 Tabular Record of Movement combinedfleet com Retrieved 19 August 2020 Hackett Bob Kingsepp Sander 1 August 2016 IJN Submarine I 184 Tabular Record of Movement combinedfleet com Retrieved 19 June 2022 Sources EditHackett Bob amp Kingsepp Sander IJN Submarine I 43 Tabular Record of Movement Retrieved on September 5 2020 Retrieved from https en wikipedia org w index php title Japanese submarine I 43 amp oldid 1165600207, wikipedia, wiki, book, books, library,
