Imperial Japanese Navy submarine
|
|
| History |
|---|
 Japan |
|---|
| Name | Small Supply Submarine No. 4607 |
| Builder | Mitsubishi, Kobe, Japan |
| Laid down | 1 August 1944 |
| Launched | 20 December 1944 |
| Renamed | Ha-107 on 20 December 1944 |
| Completed | 7 February 1945 |
| Commissioned | 7 February 1945 |
| Fate |
- Surrendered 2 September 1945
- Stricken 30 November 1945
- Scuttled 1 April 1946
|
| General characteristics |
|---|
| Type | Transport submarine |
| Displacement |
- 436 t (429 long tons) surfaced
- 501 t (493 long tons) submerged
|
| Length | 44.5 m (146 ft 0 in) |
| Beam | 6.1 m (20 ft 0 in) |
| Draft | 4.04 m (13 ft 3 in) |
| Installed power | |
| Propulsion | |
| Speed |
- 10 knots (19 km/h; 12 mph) surfaced
- 5 knots (9.3 km/h; 5.8 mph) submerged
|
| Range |
- 3,000 nmi (5,600 km; 3,500 mi) at 10 knots (19 km/h; 12 mph) surfaced
- 46 nmi (85 km; 53 mi) at 2.3 knots (4.3 km/h; 2.6 mph) submerged
|
| Test depth | 100 meters (328 ft) |
| Capacity | 60 metric tons (59 long tons) |
| Complement | 22 |
| Armament | 1 × single 25 mm (1 in) Type 96 anti-aircraft gun |
Ha-107 was an Imperial Japanese Navy Ha-101-class submarine. Completed and commissioned in December 1944, she served during the final months of World War II. She surrendered at the end of the war in September 1945 and was scuttled in April 1946.
Design and description
The Ha-101-class submarines were designed as small, cheap transport submarines to resupply isolated island garrisons. They displaced 436 metric tons (429 long tons) surfaced and 501 metric tons (493 long tons) submerged. The submarines were 44.5 meters (146 ft 0 in) long, had a beam of 6.1 meters (20 ft 0 in) and a draft of 4.04 meters (13 ft 3 in). They were designed to carry 60 metric tons (59 long tons) of cargo.[1]
For surface running, the boats were powered by a single 400-brake-horsepower (298 kW) diesel engine that drove one propeller shaft. When submerged the propeller was driven by a 140-horsepower (104 kW) electric motor. They could reach 10 knots (19 km/h; 12 mph) on the surface and 5 knots (9.3 km/h; 5.8 mph) underwater.[2] On the surface, the Ha-101s had a range of 3,000 nautical miles (5,600 km; 3,500 mi) at 10 knots (19 km/h; 12 mph); submerged, they had a range of 46 nmi (85 km; 53 mi) at 2.3 knots (4.3 km/h; 2.6 mph). The boats were armed a single mount for a 25 mm (1 in) Type 96 anti-aircraft gun.[3]
Construction and commissioning
Ha-107 was laid down on 1 August 1944 by Mitsubishi at Kobe, Japan, as Small Supply Submarine No. 4607.[4] She was launched on 20 December 1944 and was named Ha-107 that day.[4] She was completed and commissioned on 7 February 1945.[4]
Service history
Upon commissioning, Ha-107 was assigned to Submarine Squadron 11 for workups.[4] She was reassigned to Submarine Division 33 in the Kure Submarine Squadron for training purposes on 20 March 1945.[4]
Hostilities between Japan and the Allies ended on 15 August 1945, and on 2 September 1945, Ha-107 surrendered to the Allies at Maizuru, Japan.[4] On 2 November 1945, she was reassigned to Japanese Submarine Division Two under United States Navy command along with her sister ships Ha-103, Ha-105, Ha-106, Ha-108, Ha-109, and Ha-111.[4] In November 1945, the U.S. Navy ordered Ha-107 to move to Sasebo, Japan.[4]
Disposal
The Japanese struck Ha-107 from the Navy list on 30 November 1945.[4] She was among a number of Japanese submarines the U.S. Navy scuttled off the Goto Islands near Sasebo in Operation Road's End on 1 April 1946, sinking just beyond the 100-fathom (600 ft; 183 m) line at 32°37′N 129°17′E / 32.617°N 129.283°E / 32.617; 129.283 (Ha-107).[4]
