Bombardier bought airplane mfr that was founded in 1940s. Airbus was just pooling of several air companies and expertise in 1970. ATR was founded and backed b

Bombardier bought airplane mfr that was founded in 1940s. Airbus was just pooling of several air companies and expertise in 1970. ATR was founded and backed by another plane company. Etc... I think your list shows how difficult it is to start a company in these two sectors .