Nimrod / RAFRAF Nimrod airplane model. The Nimrod is used in four main roles: Anti Submarine Warfare (ASW), Anti Surface Unit Warfare (ASUW), Intelligence and Communications Support and Search and Rescue (SAR). The operating crew comprises two pilots and a flight engineer, two weapon systems officers (WSO) (tactical and routine), and a WSO who is the sensor and communications coordinator. He is, in turn, supported by a team of two wet weapon systems operators