William O. Douglas

“ The north-west-southeast runway in question is used about four per cent of the time in taking off and about seven per cent of the time in landing. Since the United States began operations in May, 1942, its four-motored heavy bombers, other planes of the heavier type, and its fighter planes have frequently passed over respondents' land buildings in considerable numbers and rather close together. They come close enough at times to appear barely to miss the tops of the trees and at times so close to the tops of the trees as to blow the old leaves off. ”

“ We have said that the airspace is a public highway. Yet it is obvious that if the landowner is to have full enjoyment of the land, he must have exclusive control of the immediate reaches of the enveloping atmosphere. Otherwise buildings could not be erected, trees could not be planted, and even fences could not be run. The principle is recognized when the law gives a remedy in case overhanging structures are erected on adjoining land. [9] The landowner owns at least as much of the space above the ground as the can occupy or use in connection with the land. ”

“ Though it would be only an easement of flight which was taken, that easement, if permanent and not merely temporary, normally would be the equivalent of a fee interest. It would be a definite exercise of complete dominion and control over the surface of the land. The fact that the planes never touched the surface would be as irrelevant as the absence in this day of the feudal livery of seisin on the transfer of real estate. The owner's right to possess and exploit the land-that is to say, his beneficial ownership of it-would be destroyed. ”

“ The path of glide for airplanes might reduce a valuable factory site to grazing land, an orchard to a vegetable patch, a residential section to a wheat field. Some value would remain. But the use of the airspace immediately above the land would limit the utility of the land and cause a diminution in its value. ”

“ Green Bay Co., 13 Wall. 166, 20 L.Ed. 557; United States v. Lynah, 188 U.S. 445, 23 S.Ct. 349, 47 L.Ed. 539; United States v. Welch, 217 U.S. 333, 30 S.Ct. 527, 54 L.Ed. 787, 28 L.R.A.,N.S., 385, 19 Ann.Cas. 680. ”