The EP-909 Skua is a mid-range patrol and electronic warfare craft of the UNSC Navy. The EP-909 is used for a variety of purposes, being capable of easily slipping into a wide ranges of roles, thanks to its flexible airframe and 'plug in' mission modules. One role, is that of Airborne Early Warning, being capable of long range threat scanning using a powerful active electronically scanned array in a radome on the top of the airframe. This allows it to detect threats, even stealth capable aircraft at extended range. With this, it can extend the sensor range of a E-456 Xiphos, extended the sensory and control capabilities. Its secondary role is that of long range patrol, being equipped with a slipspace capacitor. It can preform long range patrol, being capable of making short system jumps to