four-mile-square

Updated: May 4, 2025

Tom, looking back from the soaring jet, could see one of the helicopters on its way to the missile ship to deliver the first batch of tapes. It was late afternoon when the Navy jet touched down on the Enterprises airfield. The Swifts' sprawling experimental station was a walled, four-mile-square enclosure with landing strips, work-shops, and laboratories, near the town of Shopton.

Victor [pseud.] Appleton - Tom Swift and the Electronic Hydrolung