Original Message

FYI: the BO105 was to be upgraded as a BO108 but it never went to production. After Eurocopter was formed the 108 became the EC135 and was certified as such. The BK117 is stIll a BK117 certification-wise with the latest variant a BK117D3. The EC145, EC146, and H145 are only marketing models/names. The OP probably saw a BK117C2 as the fuselage is similar to a 135.