A Boeing 747, at nearly twice the size of an RC-135 and with its distinctive cockpit hump, is unmistakable for anything else in the air, and in 1983 none were in service with the U.S. military. | A Boeing 747, at nearly twice the size of an RC-135 and with its distinctive cockpit hump, is unmistakable for anything else in the air, and in 1983 none were in service with the U.S. military. |