The P-221 Ranger was an six-engine, mid-range, atmospheric and exoatmospheric-capable spatial patrol craft, used by the United Nations Space Command during the Swarm War. Introduced in 2574, the P-221 was based on the spaceframe of the versatile B-221 Scythe, and specialised in long range patrol, reconnaissance, electrical intelligence and anti-ship/anti-prowler warfare. As a result of its heavily swept delta wing shape, powerful engines and abundance of control surfaces and systems, the Ranger's massive internal space was able to support a large array of ordnance, equipment, fuel and, most notably, a slipspace drive; this while maintaining extreme speed and agility for a craft of its size.