No.101-class landing ship
No.149 on 2 March 1944 at Kurahashijima Island.
|Name:||No.101-class landing ship
No.103-class landing ship
|Builders:||Sasebo Naval Arsenal
Hitachi Zōsen Corporation
Kawanami Kōgyō Corporation
Ōsaka Zōsen Corporation
|Operators:|| Imperial Japanese Navy
Imperial Japanese Army
Republic of China Navy
|Completed:||69 (Navy: 49, Army: 20)|
|Lost:||41 (Navy: 40, Army: 1)|
|Retired:||30 (Navy: 9, Army: 19)|
|General characteristics No.101 class|
|Displacement:||950 long tons (965 t) standard
1,010 long tons (1,026 t) trial
|Length:||80.50 m (264 ft 1 in) overall
75.50 m (247 ft 8 in) waterline
|Beam:||9.10 m (29 ft 10 in)|
|Draught:||2.89 m (9 ft 6 in)|
|Draft:||5.65 m (18 ft 6 in)|
|Propulsion:||3 × intermediate diesels
3 shafts, 1,200 bhp
|Speed:||13.4 knots (15.4 mph; 24.8 km/h)|
|Range:||3,000 nmi (5,600 km) at 13.4 kn (15.4 mph; 24.8 km/h)|
|Armament:||No.101, March 1944
• 1 × 76.2 mm (3.00 in) L/40 AA gun
• 6 × Type 96 25 mm AA guns
• 6 × depth charges
|General characteristics No.103 class|
|Displacement:||870 long tons (884 t) standard
1,020 long tons (1,036 t) trial
|Length:||80.50 m (264 ft 1 in) overall
75.00 m (246 ft 1 in) waterline
|Beam:||9.10 m (29 ft 10 in)|
|Draught:||2.94 m (9 ft 8 in)|
|Draft:||5.65 m (18 ft 6 in)|
|Propulsion:||1 × Kampon geared turbine
2 × Kampon water tube boilers
single shaft, 2,500 shp
|Speed:||16.0 knots (18.4 mph; 29.6 km/h)|
|Range:||Going: 1,000 nmi (1,900 km) at 16 kn (30 km/h; 18 mph)
Returning: 1,000 nmi (1,900 km; 1,200 mi) at 14 kn (26 km/h; 16 mph)
120 troops, 22 tons freight and
|Armament:||No.104, 20 August 1944
• 1 × 76.2 mm (3.00 in) L/40 AA gun
• 16 × Type 96 25 mm AA guns
• 4 × 13 mm AA guns
• 12 × depth charges
The No.101-class landing ships (第百一号型輸送艦, Dai 101 Gō-gata Yusōkan?) were a class of amphibious assault ships of the Imperial Japanese Navy (IJN) and Imperial Japanese Army (IJA), serving during and after World War II. The No.101 class was equipped with diesel engines, while the similar No.103-class landing ships (第百三号型輸送艦, Dai 103 Gō-gata Yusōkan?) were equipped with a turbine engine. The IJN called them 2nd class transporter (二等輸送艦, 2-Tō Yusōkan?). The No.103 class has the IJA's SB craft (SB艇, SB-tei?)  variant. This article handles them collectively.
- In June 1943, after its defeat in the Guadalcanal Campaign, the IJN realized the necessity of a high-speed military transporter, and they devised two types of ship. One (the No.1 class) was the 1,500-ton mothership of the Daihatsu-class landing craft and Kō-hyōteki-class submarines, the other the 900-ton amphibious assault ship for beachhead (described in this article).
- The IJA already had an amphibious assault ship, the SS-class landing ship. However, the SS craft were not suitable for mass-production for a structure elaborate very much. Therefore, the IJA wanted the new amphibious assault ships.
- The plans of the IJN and the IJA were accorded. They cooperated for new amphibious assault ships. The IJN offered a design and shipyards while the IJA offered mineral resources.
- The IJN already obtained information regarding Operation Torch from Germany, including some photographs and sketches of the LCT Mk.V.
- In August 1943, the Navy Technical Department (Kampon) studied these and finished a basic design. It was a scaled-up model of the LCT.
- In September 1943, the Kampon entrusted the detailed design to the Kure Naval Arsenal. The Kure Naval Arsenal finished it within two months, and the No.101 was laid down in November 1943.
- The Kampon designed a new turbine engine for this class. However, it was not ready in time for the first 6 vessels. The Kampon put the wartime standard diesel engine on first 6 vessels. The IJN called them No.101 class or SB (D). For the all the others, turbine engines were supplied smoothly. The IJN called them No.103 class or SB (T). Completed vessels were split between the IJN and IJA.
- The IJA received 32 vessels from No.103 class, however the IJA did not master handling of a turbine engine. The IJA returned 10 vessels to the IJN. The completed vessels were sent one by one to the front.
- About the No.103 class and SB craft, several vessels were changed the coal-fired boilers on January 1945. Detailed construction records were not left.
- Most of the Navy vessels were sent to the Battle of Leyte, 18 of them were lost. Most of them, however, succeeded in the landing of tanks and troops.
- Only 9 vessels survived the war.
- As of 2009 a detailed record about the vessels in the Army service is not known to exist in Japan.
- The armaments were not unified.
- The IJA let ten SB craft participate in the Philippines Campaign. Their actions were limited to the Luzon northern coast, Taiwan and Ryukyu Islands. The IJA lost only one SB craft.
- After the Philippines Campaign, the SB craft were used only in the Japanese mainland peripheral sea area.
Ships in classes
|No.101||Ōsaka Zōsen||01-12-1943||25-01-1944||08-03-1944||Sunk by aircraft at Ormoc Bay, 28-10-1944.|
|No.102||Ōsaka Zōsen||15-12-1843||08-02-1944||15-03-1944||Sunk by aircraft at west of Negros, 26-10-1944.|
|No.127||Kawanami Kōgyō||21-10-1943||13-01-1944||28-02-1944||Sunk by aircraft off Ticao Island, 25-09-1944.|
|No.128||Kawanami Kōgyō||10-11-1943||10-02-1944||18-03-1944||Sunk by aircraft off Morotai, 04-06-1944.|
|No.149||Hitachi Zōsen||01-11-1943||25-12-1943||20-02-1944||Converted to miscellaneous service ship (traffic boat) and renamed Kuroshio No. 2 (第二黒潮, Dai 2 Kuroshio?) on 10-02-1945. Sunk by USN submarine off Sumatra on 01-06-1945.|
|No.150||Hitachi Zōsen||28-12-1943||27-01-1944||10-03-1944||Sunk by aircraft off Palau, 27-07-1944.|
|No.103||Ōsaka Zōsen||28-01-1944||09-03-1944||01-05-1944||Sunk by aircraft off Iwo Jima, 04-07-1944.|
|No.104||Ōsaka Zōsen||12-02-1944||25-03-1944||25-05-1944||Sunk by aircraft west of Luzon, 15-12-1944.|
|No.105||Ōsaka Zōsen||12-03-1944||12-04-1944||15-06-1944||Sunk by USS Trepang south of Omaezaki, 11-10-1944|
|No.106||Ōsaka Zōsen||28-03-1944||25-04-1944||30-06-1944||Completed as Army SB No.120 at first. Sunk by aircraft at Lingayen Gulf, 15-12-1944.|
|No.107||Ōsaka Zōsen||15-04-1944||21-05-1944||20-07-1944||Completed as Army SB No.123 at first. Sunk by USN destroyer west of Haha-jima, 05-01-1945.|
|No.108||Ōsaka Zōsen||28-04-1944||25-05-1944||31-07-1944||Completed as Army SB No.125 at first. Decommissioned 03-05-1947. Surrendered to United Kingdom at Singapore, 17-10-1947.|
|No.109||Ōsaka Zōsen||15-08-1944||Transferred to the Army, SB craft.|
|No.110||Ōsaka Zōsen||28-05-1944||23-06-1944||05-09-1944||Completed as Army SB craft at first. Decommissioned 15-09-1945. Surrendered to United Kingdom at Singapore, 17-10-1947.|
|No.111||Ōsaka Zōsen||13-06-1944||10-07-1944||15-09-1944||Completed as Army SB craft at first. Sunk by aircraft at Masbate, 24-11-1944.|
|No.112||Ōsaka Zōsen||26-06-1944||22-07-1944||05-10-1944||Completed as Army SB craft at first. Sunk by aircraft west of Luzon, 07-01-1945.|
|No.113||Ōsaka Zōsen||13-07-1944||08-08-1944||15-10-1944||Completed as Army SB craft at first. Sunk by aircraft west of Luzon, 25-11-1944.|
|No.114||Ōsaka Zōsen||25-07-1944||20-08-1944||30-10-1944||Completed as Army SB craft at first. Sunk by aircraft off Taiwan, 17-02-1945.|
|No.115||Ōsaka Zōsen||12-08-1944||07-09-1944||13-11-1944||Completed as Army SB craft at first. Sunk by aircraft north of Luzon, 02-02-1945.|
|No.116||Ōsaka Zōsen||24-11-1944||Transferred to the Army, and renamed SB No.103.|
|No.117||Ōsaka Zōsen||22-12-1944||Transferred to the Army, SB craft.|
|No.118||Ōsaka Zōsen||30-12-1944||Transferred to the Army, SB craft.|
|No.119||Ōsaka Zōsen||16-01-1945||Transferred to the Army, SB craft.|
|No.120||Ōsaka Zōsen||05-02-1945||Transferred to the Army, SB craft.|
|No.121||Ōsaka Zōsen||20-02-1945||Transferred to the Army, SB craft.|
|No.122||Ōsaka Zōsen||22-03-1945||Transferred to the Army, SB craft.|
|No.123||Ōsaka Zōsen||22-03-1945||Transferred to the Army, SB craft.|
|No.124||Ōsaka Zōsen||08-05-1945||Transferred to the Army, SB craft.|
|No.125||Ōsaka Zōsen||Transferred to the Army, and renamed SB No.127. Not completed until the end of war.|
|No.126||Ōsaka Zōsen||Transferred to the Army, and renamed SB No.128. Not completed until the end of war.|
|No.129||Kawanami Kōgyō||10-12-1943||25-02-1944||12-05-1944||Sunk by USS Cod in the Banda Sea, 14-08-1944.|
|No.130||Kawanami Kōgyō||20-01-1944||05-04-1944||03-06-1944||Sunk by aircraft off Iwo Jima, 04-07-1944.|
|No.131||Kawanami Kōgyō||05-02-1944||23-04-1944||24-06-1944||Converted to miscellaneous service ship (traffic boat) and renamed Kuroshio No. 1 (第一黒潮, Dai 1 Kuroshio?) on 10-02-1945. Sunk by USN submarine in the Strait of Malacca on 27-07-1945.|
|No.132||Kawanami Kōgyō||25-02-1944||05-05-1944||28-06-1944||Sunk by USN destroyer at Iwo Jima, 27-12-1944.|
|No.133||Sasebo Naval Arsenal||10-04-1944||07-06-1944||04-07-1944||Sunk by aircraft off Iwo Jima, 04-08-1944.|
|No.134||Kawanami Kōgyō||10-04-1944||15-06-1944||15-07-1945||Scuttled by stormy weather at Iwo Jima, 04-10-1944.|
|No.135||Kawanami Kōgyō||28-04-1944||26-06-1944||25-07-1944||Sunk by aircraft at west coast of Luzon, 18-10-1944.|
|No.136||Kawanami Kōgyō||10-05-1944||15-07-1944||20-08-1944||Sunk by aircraft at west coast of Luzon, 18-10-1944.|
|No.137||Kawanami Kōgyō||01-06-1944||20-07-1944||28-08-1944||Decommissioned 05-10-1945. Surrendered to Soviet Union at Nakhodka, 03-10-1947.|
|No.138||Kawanami Kōgyō||18-06-1944||03-08-1944||04-09-1944||Sunk by USS Kingfish off Iwo Jima, 26-10-1944.|
|No.139||Kawanami Kōgyō||05-07-1944||18-08-1944||25-09-1944||Sunk by aircraft at west coast of Luzon, 12-11-1944.|
|No.140||Sasebo Naval Arsenal||26-07-1944||16-09-1944||14-10-1944||Sunk by aircraft at Saigon, 13-01-1945.|
|No.141||Sasebo Naval Arsenal||29-07-1944||16-09-1944||19-10-1944||Sunk by aircraft at Masbate, 24-11-1944.|
|No.142||Kawanami Kōgyō||01-08-1944||20-09-1944||02-11-1944||Sunk by aircraft at west coast of Luzon, 25-11-1944.|
|No.143||Kawanami Kōgyō||14-08-1944||03-10-1944||25-11-1944||Sunk by aircraft at Penghu, 26-03-1945.|
|No.144||Kawanami Kōgyō||20-08-1944||20-10-1944||01-12-1944||Decommissioned 05-10-1945, later scrapped.|
|No.145||Kawanami Kōgyō||05-09-1944||15-11-1944||16-12-1944||Sunk by USN aircraft at Amami Ōshima, 02-04-1945.|
|No.146||Kawanami Kōgyō||24-09-1944||30-11-1944||30-12-1944||Sunk by USS Trepang south of Gotō Islands, 28-04-1945.|
|No.147||Kawanami Kōgyō||06-10-1944||15-12-1944||25-01-1945||Decommissioned 15-09-1945. Surrendered to United States at Yokosuka, 13-11-1947. Scrapped 31-03-1948.|
|No.148||Kawanami Kōgyō||31-01-1945||Transferred to the Army, and renamed SB No.113.|
|No.151||Hitachi Zōsen||29-01-1944||27-02-1944||23-04-1944||Sunk by USS Besugo north of Palawan, 23-11-1944.|
|No.152||Hitachi Zōsen||29-02-1944||24-03-1944||25-05-1944||Sunk by aircraft at Iwo Jima, 04-08-1944.|
|No.153||Hitachi Zōsen||15-02-1944||08-04-1944||15-06-1944||Decommissioned 30-11-1945. Scrapped 1948.|
|No.154||Hitachi Zōsen||26-03-1944||23-04-1944||05-07-1944||Completed as Army SB craft at first. Sunk by USN destroyer at Iwo Jima, 05-01-1945.|
|No.155||Hitachi Zōsen||19-07-1944||Transferred to the Army, SB craft.|
|No.156||Hitachi Zōsen||05-08-1944||Transferred to the Army, SB craft.|
|No.157||Hitachi Zōsen||12-05-1944||06-09-1944||19-08-1944||Sunk by USN destroyer at Iwo Jima, 24-12-1944.|
|No.158||Hitachi Zōsen||24-05-1944||23-06-1944||04-09-1944||Sunk by aircraft at Naha, 10-10-1944.|
|No.159||Hitachi Zōsen||10-06-1944||08-07-1944||16-09-1944||Sunk by a bombardment of US Army tanks and artillery at Ormoc Bay, 12-12-1944.|
|No.160||Hitachi Zōsen||01-07-1944||08-08-1944||30-09-1944||Sunk by aircraft at Masbate, 24-11-1944.|
|No.161||Hitachi Zōsen||09-07-1944||22-08-1944||14-10-1944||Sunk by aircraft at west coast of Luzon, 25-11-1944.|
|No.162||Hitachi Zōsen||23-10-1944||Transferred to the Army, and renamed SB No.101. Scrapped April 1948.|
|No.163||Hitachi Zōsen||31-10-1944||Transferred to the Army, and renamed SB No.102.|
|No.164||Ōsaka Zōsen||11-04-1945||Construction stopped; later scrapped.|
|No.165||Ōsaka Zōsen||28-04-1945||Construction stopped; later scrapped.|
|6 vessels||They were cancelled before being named.|
|No.172||Kawanami Kōgyō||24-11-1944||27-01-1945||10-03-1945||Decommissioned 15-09-1945. Surrendered to Republic of China at Qingdao, 03-10-1947. Renamed Lui Shan (AP-308). Decommissioned 1955.|
|No.173||Kawanami Kōgyō||08-12-1944||15-02-1945||01-04-1945||Sunk by aircraft at Ryukyu Islands, 22-05-1945.|
|No.174||Kawanami Kōgyō||03-01-1945||15-03-1945||14-07-1945||Decommissioned 20-11-1945; scrapped in 1948.|
|No.175||Kawanami Kōgyō||02-02-1945||11-04-1945||Construction stopped 11-04-1945. Sunk by typhoon 15-09-1945; scrapped on 01-10-1948.|
|No.176||Kawanami Kōgyō||22-02-1945||25-06-1945||Construction stopped 25-06-1945; later scrapped.|
|7 vessels||They were cancelled before being named.|
|No.184||Hitachi Zōsen||30-11-1944||Transferred to the Army, SB craft.|
|No.185||Hitachi Zōsen||10-12-1944||Transferred to the Army, SB craft.|
|No.186||Hitachi Zōsen||24-12-1944||Transferred to the Army, SB craft.|
|No.187||Hitachi Zōsen||13-01-1945||Transferred to the Army, and renamed SB No.114. Scrapped May 1948.|
|No.188||Hitachi Zōsen||29-01-1945||Transferred to the Army, SB craft.|
|15 vessels||They were cancelled before being named.|
Type 3 Ka-Chi departure from No.149 on 29 February 1944 at Nasakejima Island.
Type 95 Ha-Gō departure from No.149 on 27 February 1944 at Nasakejima Island.
(left to right) No.150, No.101, No.127 and No.149 on 13 March 1944 at Kure Naval Arsenal.
IJA SB No. 101 on 17 February 1947 at Hiroshima Bay.
IJA SB No. 102 in 1947 at Moji.
- Landing Ship, Tank
- Landing Ship Medium
- Landing craft tank
- Landing Craft Utility
- SS-class landing ship
- Daihatsu-class landing craft
- The SB meaning are S = Sensha, and B = Kaigun.
- The Kampon Mk.A Model 25 (艦本式甲二五型, Kampon Kō 25-gata?) all geared turbine.
- The No.106, No.107, No.108, No.110, No.111, No.112, No.113, No.114, No.115 and No.154.
- No.147, SB No.101 and SB No.108 can confirm it from a photograph. Their chimney was very tall.
- "Memorial stone in Sasebo".
- "Japanese Escorts". Combinedfleet.com. Retrieved 2 April 2013.
- "Rekishi Gunzō"., History of the Pacific War Vol. 51, "The truth histories of the Imperial Japanese Vessels Part.2", Gakken (Japan), 2005, ISBN 4-05-604083-4.
- Rekishi Gunzō, History of the Pacific War Vol. 62, "Ships of the Imperial Japanese Forces", Gakken (Japan), January 2008, ISBN 978-4-05-605008-0
- The Maru Special, Japanese Naval Vessels No. 50, "Japanese minesweepers and landing ships", Ushio Shobō (Japan), 1981.
- Ships of the World, Special issue Vol. 47, "Auxiliary Vessels of the Imperial Japanese Navy", "Kaijinsha"., (Japan), 1997.
- Shizuo Fukui, Japanese Naval Vessels Survived, "Their post-war activities and final disposition", Shuppan Kyodosha (Japan), 1961.
- Shizuo Fukui, FUKUI SHIZUO COLLECTION "Japanese Naval Vessels 1869–1945", KK Bestsellers (Japan), 1994.