The Ro-100 class was a medium-sized, coastal submarine derived from the preceding Kaichū type. They displaced 611 tonnes (601 long tons) surfaced and 795 tonnes (782 long tons) submerged. The submarines were 60.9 meters (199 ft 10 in) long, had a beam of 6 meters (19 ft 8 in) and a draft of 3.51 meters (11 ft 6 in). They had a double hull and a diving depth of 75 meters (246 ft).[1]
For surface running, the boats were powered by two 500-brake-horsepower (373 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 380-horsepower (283 kW) electric motor. They could reach 14.2 knots (26.3 km/h; 16.3 mph) on the surface and 8 knots (15 km/h; 9.2 mph) underwater. On the surface, the Ro-100s had a range of 3,500 nautical miles (6,500 km; 4,000 mi) at 12 knots (22 km/h; 14 mph); submerged, they had a range of 60 nmi (110 km; 69 mi) at 3 knots (5.6 km/h; 3.5 mph).[2]
Upon commissioning, Ro-114 was attached to the Kure Naval District and was assigned to Submarine Squadron 11 for workups.[4] On 20 December 1942, her commanding officer received orders to attend the Kure Submarine School to take a class on the new Type 92 electric torpedo.[4]
On 7 February 1944, Ro-114 was reassigned to the headquarters of the Grand Escort Command to conduct antisubmarine operations in the Ryukyu Islands.[4] She was reassigned to Submarine Division 30 in Submarine Squadron 8 on 20 February 1944,[4] and on 11 March 1944 departed Kure for her first combat duty, an antisubmarine patrol in the Ryukyus under the direction of the Grand Escort Command.[4]
Submarine Division 30 was disbanded on 25 March 1944, and that day Ro-114 was reassigned to Submarine Division 51.[4] She departed Kure on 1 June 1944 bound for Saeki, then departed Saeki on 4 June 1944 to head for Saipan in the Mariana Islands, which she reached in early June 1944.[4]
First war patrol
Ro-114 got underway from Saipan on 11 June 1944 for her first war patrol, assigned a patrol area off Saipan itself.[4] On 12 June 1944, she reported that he had arrived in her patrol area.[4]
On 13 June 1944 the Combined Fleet activated Operation A-Go for the defense of the Mariana Islands, and that day the commander-in-chief of the 6th Fleet, Vice AdmiralTakeo Takagi, ordered all 18 submarines available to him to deploy east of the Marianas.[4] The Battle of Saipan began with U.S. landings on Saipan on 15 June 1944.[4] That day, the 6th Fleet ordered most of its submarines, including Ro-114, to withdraw from the Marianas.[4] On 16 June 1944, she was ordered to join Patrol Unit C along with the submarines Ro-113, Ro-115, and Ro-117.[4]
The submarine Melvin and Wadleigh sank probably was Ro-114.[4] On 12 July 1944, the Imperial Japanese Navy declared Ro-114 to be presumed lost in the Philippines area with all 55 men on board.[4] The Japanese struck her from the Navy list on 10 August 1944.[4]
^ abcdefghijklmnopqrstuvHackett, Bob; Kingsepp, Sander (2017). "IJN Submarine RO-114: Tabular Record of Movement". combinedfleet.com. Retrieved 5 October 2020.
References
Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN0-87021-962-6.
Carpenter, Dorr B. & Polmar, Norman (1986). Submarines of the Imperial Japanese Navy 1904–1945. London: Conway Maritime Press. ISBN0-85177-396-6.
Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN0-85177-146-7.
Hackett, Bob; Kingsepp, Sander (2017). "IJN Submarine RO-114: Tabular Record of Movement". SENSUIKAN! Stories and Battle Histories of the IJN's Submarines. Combinedfleet.com. Retrieved 5 October 2020.
March 03, 2023
japanese, submarine, imperial, japanese, navy, class, submarine, completed, commissioned, november, 1943, served, world, sunk, june, 1944, during, first, patrol, historyjapannamesubmarine, 405builderkawasaki, senshu, kobe, japanlaid, down12, october, 1942renam. Ro 114 was an Imperial Japanese Navy Ro 100 class submarine Completed and commissioned in November 1943 she served in World War II and was sunk in June 1944 during her first war patrol HistoryJapanNameSubmarine No 405BuilderKawasaki Senshu and Kobe JapanLaid down12 October 1942RenamedRo 114Launched19 June 1943Completed20 November 1943Commissioned20 November 1943FateSunk 17 June 1944Stricken10 August 1944General characteristicsClass and typeRo 100 class submarineDisplacement611 tonnes 601 long tons surfaced 795 tonnes 782 long tons submergedLength60 90 m 199 ft 10 in overallBeam6 00 m 19 ft 8 in Draft3 51 m 11 ft 6 in Installed power1 000 bhp 750 kW diesel 760 hp 570 kW electric motor PropulsionDiesel electric 1 diesel engine 1 electric motorSpeed14 2 knots 26 3 km h 16 3 mph surfaced 8 knots 15 km h 9 2 mph submergedRange3 500 nmi 6 500 km 4 000 mi at 12 knots 22 km h 14 mph surfaced 60 nmi 110 km 69 mi at 3 knots 5 6 km h 3 5 mph submergedTest depth75 m 246 ft Crew38Armament4 bow 533 mm 21 in torpedo tubes 2 25 mm 1 in Type 96 anti aircraft guns or 1 76 2 mm 3 00 in L 40 AA gun Contents 1 Design and description 2 Construction and commissioning 3 Service history 3 1 November 1943 June 1944 3 2 First war patrol 3 3 Loss 4 Notes 5 ReferencesDesign and description EditThe Ro 100 class was a medium sized coastal submarine derived from the preceding Kaichu type They displaced 611 tonnes 601 long tons surfaced and 795 tonnes 782 long tons submerged The submarines were 60 9 meters 199 ft 10 in long had a beam of 6 meters 19 ft 8 in and a draft of 3 51 meters 11 ft 6 in They had a double hull and a diving depth of 75 meters 246 ft 1 For surface running the boats were powered by two 500 brake horsepower 373 kW diesel engines each driving one propeller shaft When submerged each propeller was driven by a 380 horsepower 283 kW electric motor They could reach 14 2 knots 26 3 km h 16 3 mph on the surface and 8 knots 15 km h 9 2 mph underwater On the surface the Ro 100s had a range of 3 500 nautical miles 6 500 km 4 000 mi at 12 knots 22 km h 14 mph submerged they had a range of 60 nmi 110 km 69 mi at 3 knots 5 6 km h 3 5 mph 2 The boats were armed with four internal bow 53 3 cm 21 in torpedo tubes and carried a total of eight torpedoes They were also armed with two single mounts for 25 mm 1 in Type 96 anti aircraft guns or a single 76 2 mm 3 in L 40 AA gun 3 Construction and commissioning EditRo 114 was laid down as Submarine No 405 on 12 October 1942 by Kawasaki at Senshu Japan 4 She had been renamed Ro 114 by the time she was launched on 19 June 1943 4 She then was towed to Kawasaki s shipyard at Kobe Japan for fitting out 4 She was completed and commissioned at Kobe on 20 November 1943 4 Service history EditNovember 1943 June 1944 Edit Upon commissioning Ro 114 was attached to the Kure Naval District and was assigned to Submarine Squadron 11 for workups 4 On 20 December 1942 her commanding officer received orders to attend the Kure Submarine School to take a class on the new Type 92 electric torpedo 4 On 7 February 1944 Ro 114 was reassigned to the headquarters of the Grand Escort Command to conduct antisubmarine operations in the Ryukyu Islands 4 She was reassigned to Submarine Division 30 in Submarine Squadron 8 on 20 February 1944 4 and on 11 March 1944 departed Kure for her first combat duty an antisubmarine patrol in the Ryukyus under the direction of the Grand Escort Command 4 Submarine Division 30 was disbanded on 25 March 1944 and that day Ro 114 was reassigned to Submarine Division 51 4 She departed Kure on 1 June 1944 bound for Saeki then departed Saeki on 4 June 1944 to head for Saipan in the Mariana Islands which she reached in early June 1944 4 First war patrol Edit Ro 114 got underway from Saipan on 11 June 1944 for her first war patrol assigned a patrol area off Saipan itself 4 On 12 June 1944 she reported that he had arrived in her patrol area 4 On 13 June 1944 the Combined Fleet activated Operation A Go for the defense of the Mariana Islands and that day the commander in chief of the 6th Fleet Vice Admiral Takeo Takagi ordered all 18 submarines available to him to deploy east of the Marianas 4 The Battle of Saipan began with U S landings on Saipan on 15 June 1944 4 That day the 6th Fleet ordered most of its submarines including Ro 114 to withdraw from the Marianas 4 On 16 June 1944 she was ordered to join Patrol Unit C along with the submarines Ro 113 Ro 115 and Ro 117 4 Loss Edit On 17 June 1944 the United States Navy destroyers USS Melvin DD 680 and USS Wadleigh DD 689 detected a submerged Japanese submarine on sonar in the Philippine Sea 80 nautical miles 150 km 92 mi west of Tinian 4 They sank it with depth charges at 15 02 N 144 10 E 15 033 N 144 167 E 15 033 144 167 Ro 114 4 The submarine Melvin and Wadleigh sank probably was Ro 114 4 On 12 July 1944 the Imperial Japanese Navy declared Ro 114 to be presumed lost in the Philippines area with all 55 men on board 4 The Japanese struck her from the Navy list on 10 August 1944 4 Notes Edit Carpenter amp Dorr p 123 Chesneau p 204 Bagnasco p 193 a b c d e f g h i j k l m n o p q r s t u v Hackett Bob Kingsepp Sander 2017 IJN Submarine RO 114 Tabular Record of Movement combinedfleet com Retrieved 5 October 2020 References EditBagnasco Erminio 1977 Submarines of World War Two Annapolis Maryland Naval Institute Press ISBN 0 87021 962 6 Carpenter Dorr B amp Polmar Norman 1986 Submarines of the Imperial Japanese Navy 1904 1945 London Conway Maritime Press ISBN 0 85177 396 6 Chesneau Roger ed 1980 Conway s All the World s Fighting Ships 1922 1946 Greenwich UK Conway Maritime Press ISBN 0 85177 146 7 Hackett Bob Kingsepp Sander 2017 IJN Submarine RO 114 Tabular Record of Movement SENSUIKAN Stories and Battle Histories of the IJN s Submarines Combinedfleet com Retrieved 5 October 2020 Retrieved from https en wikipedia org w index php title Japanese submarine Ro 114 amp oldid 1092798615, wikipedia, wiki, book, books, library,
