| Displacement | 1420t standard |
|---|---|
| Length | 74m oa |
| Width | 13m |
| Draught | 4.3m |
| Machinery | 2-shaft diesel, 3200bhp |
| Speed | 16kt |
| Range | 16500nm/14kt |
| Armament | none |
| Sensor | Radar: OPS-9 |
| Complement | 65 |
| Number | Name | Plan | Builder | Laid down | Launch | Complete | ||
|---|---|---|---|---|---|---|---|---|
| AGS-5101 | Akashi | FY1967 | NKK, Tsurumi | 1968. 9.21 | 1969. 5.30 | 1969.10.25 | Ocean Survey ship | (Ocean survey unit) 1980. 3.17 (Ocean survey command) 1999. 3.24 disc |