Israel's air force on Sunday introduced a fleet of huge pilotless planes that can remain in the air for a full day and fly as far as the Persian Gulf, putting rival Iran within its range.

The Heron TP drones have a wingspan of 86 feet (26 meters), making them the size of Boeing 737 passenger jets and the largest unmanned aircraft in Israel's military. The planes can fly at least 20 consecutive hours and are primarily used for surveillance and carrying diverse payloads.