However , throughout its history , the company was informally known as Hughes Helicopters .
It became the helicopter division of Hughes ' Summa Corporation in 1972 , and was finally reformed as Hughes Helicopters , Inc. in 1981 .
Throughout its history , the company was informally known as Hughes Helicopters , Inc.   .
It became the helicopter division of Hughes ' Summa Corporation in 1972 , and was finally reformed as Hughes Helicopters , Inc. in 1981 .