Towards the end of the 1970s , the regional airliner venture had become the largest industrial venture in Sweden .
Towards the end of the 1970s , the regional airliner venture was recognised as being too large for Saab to conduct alone .
Towards the end of the 1970s , the regional airliner venture had become the largest industrial venture in Sweden and was recognised as being too large for Saab to conduct alone .