ماكدونل دوغلاس
In January 1984, Hughes Helicopters, Inc. was sold to McDonnell Douglas by Summa Corporation. McDonnell Douglas paid $470 million for the company and made it a subsidiary with the name "McDonnell Douglas Helicopter Systems" in August 1984. In 1986, McDonnell Douglas sold all the rights to the Model 300C to Schweizer Aircraft.