The USCG Defender class boat, also called response boat-small (RB-S), is a standard boat introduced by the United States Coast Guard in July 2003. The Coast Guard plans to replace a mixture of older boats with up to 700 Defender class vessels. The boats serves a variety of missions, including search and rescue, port security and constabulary duties. The boats are 25 feet (7.6 meters) in length and have a draft of less than 1 meter (3 ft). Powered by twin 225 hp (168 kW) Honda outboard motors, they are capable of speeds well in excess of 40 knots (74 km/h) and have a range of 105 or 125 nautical miles (232 km), depending on the type of fuel tanks used. The boat can launch with a two-person crew, but has a carrying capacity for 10 persons. The boat can be transported by a C-130 Hercules aircraft or a boat trailer. It can mount M60 or M240 machine guns in the bow and stern. Although superficially similar to a rigid-hulled inflatable boat, the Defender is actually an aluminum hulled vessel, equipped with a hard foam-filled floatation collar. The boats are built by SAFE Boats International (Secure Around Flotation Equipped) of Port Orchard, Washington, a vendor of government and law enforcement boats.