During World War II, military bombers using the airbase near the Causby property descended to as low as 83 feet, which was 67 feet above the Causbys' house.
Notes on verification
Directly corroborated by the U.S. Supreme Court opinion in United States v. Causby (328 U.S. 256) and multiple independent legal secondary sources citing the same figures.
Sources
- How Much of the Sky Overhead Do You Own? (smithsonianmag.com)
- https://tile.loc.gov/storage-services/service/ll/usrep/usrep328/usrep328256/usrep328256.pdf (tile.loc.gov)
- https://www.courtlistener.com/opinion/104300/united-states-v-causby/ (courtlistener.com)
- https://law.cornell.edu/supremecourt/text/328/256 (law.cornell.edu)
- https://supreme.justia.com/cases/federal/us/328/256 (supreme.justia.com)
- https://www.casebriefs.com/blog/law/property/property-law-keyed-to-cribbet/interests-in-land-of-another-and-in-natural-resources-affecting-anothers-land/united-states-v-causby/ (casebriefs.com)