The distinctive rotodome including “eye-in-the-sky” electronics for the E-3 Airborne Warning and Control System (AWACS) first was installed using the 720-320 jet as the aircraft platform. Production of the 707 jet airframe ended in 1991, and the 767 jet airframe was offered as the platform for AWACS. AWACS represents the world's standard for airborne early warning systems. It provides airborne surveillance, as well as command and control functions for tactical and air defense forces. Equipped with a “look-down” radar, the AWACS can separate airborne targets from the ground and sea clutter returns. It has a 360-degree view of the horizon, and at operating altitudes can “see” more than 320 kilometers (200 miles) and can detect and track both air and sea targets simultaneously. The 767-200 aircraft has 50 percent more floor space and nearly twice the volume of the 707 aircraft, can carry a heavier payload, has a greater range, and flies higher than the 707 jet. The 767 jet will have mission capability comparable to the 707 AWACS and will be interoperable with the AWACS aircraft currently in service.