Raytheon Hawker 800SIG
In 1996 the Republic of Korea Air Force (ROKAF) ordered 4 Raytheon Hawker 800SIG aircraft configured for the SIGINT role under a programme known as Peace Pioneer. It is not known exactly what equipment these aircraft are planned to carry, but given the close ties that exist between the US and South Korean intelligence agencies, the equipment being supplied will probably be similar to some equipment carried by the RC-135 Rivet Joint.
Under another programme called Peace Krypton, an additional 4 Raytheon Hawker 800SIG have also been delivered to South Korea fitted with an MTI radar housed in a ventral pod. At least 7 aircraft have already arrived in South Korea for final fitting out by Korean Aircraft Industries in Seoul. The following aircraft serials have been observed: 258-342, 258-343, 258-350, 258-351, 258-352, 258-353 and 258-357. The aircraft are painted in tactical grey with toned-down roundels and serial numbers. It is believed that eventually a total of 10 aircraft will be ordered from Raytheon, with the mission avionics supplied by Goodyear.