License built version of Sikorsky SH-3D with Japanese engines and avionics. 28 built for JMSDF service on Helicopter ASW Cruisers and Destroyers. 
List of Operators of HSS-2A |
| Years | Model | Org | |
|---|---|---|---|
| 1964/08 | S-61 |  Japan Maritime Self-Defense Force |
Global Distribution of HSS-2A |
|
Construction Numbers |
| C/N | Year | History | |
|---|---|---|---|
| M61-060 | 8056 | ||
| M61-061 | 8057 | ||
| M61-062 | 8058 | ||
| M61-063 | 8059 | ||
| M61-064 w/o 1980 | 8060 | ||
| M61-065 | 8061 | ||
| M61-066 | 8062 | ||
| M61-067 | 8063 | ||
| M61-068 | 8064 | ||
| M61-069 | 8065 | ||
| M61-070 | 8066 | ||
| M61-073 | 8067 | ||
| M61-074 | 8068 | ||
| M61-076 | 8069 | ||
| M61-077 w/o 1979 | 8070 | ||
| M61-078 | 8071 | ||
| M61-079 | 8072 | ||
| M61-081 | 8073 | ||
| M61-082 | 8074 | ||
| M61-083 | 8075 | ||
| M61-084 | 8076 | ||
| M61-085 | 8077 | ||
| M61-086 | 8078 | ||
| M61-087 | 8079 | ||
| M61-088 | 8080 | ||
| M61-089 | 8081 | ||
| M61-090 | 8082 | ||
| M61-092 w/o 1980 | 8083 |
