Derivatives & Versions
| BK117A-4 | ||
| BK117B-1 | ||
| BK117B-2 | ||
| BK117C-1 | ||
| BK117A-1 | 1982 | |
| BK117A-3 | 1985 | |
| BK117C-2 | 2002 | Eurocopter EC145T1 built in Japan |
| BK117D-2 | 2016 | The H145 / EC145T2 was originally to be built also in Japan but production never started and was succeeded by the Bk117D3 |
| BK117D-3 | 2019 | Airbus presented a five-bladed main rotor variant of the H145 in 2019 |