You may be interested in some history related to United Airlines [itself an agglomeration of many airlines], Pratt & Whitney, Boeing, Sikorsky Helicopters, and

You may be interested in some history related to United Airlines [itself an agglomeration of many airlines], Pratt & Whitney, Boeing, Sikorsky Helicopters, and others, which all used to be part of the same organization. They were broken up. https://en.wikipedia.org/wiki/United_Aircraft_and_Transport_Corporation https://en.wikipedia.org/wiki/United_Aircraft_and_Transport_...