The Mark VI is 84.8 ft (25.8 m). It has a crew of 10 sailors and can carry 8 additional personnel. The interior is spacious, with berthing for the crew and shock-absorbing seats for other occupants. The boats are fully networked with a command, control, communication and computing, surveillance and intelligence (C4SI) suite. Standard armament consists of two remote-controlled Mk 38 Mod 2 25 mm chain guns and six crewed M2 .50 caliber machine guns. A remote turret that enables crewmen to use its camera and gun from the operator’s station below deck. It is also planned to mount guided missiles such as the BGM-176B Griffin. The aluminum-hulled Mark VI is powered by two MTU 16V2000M94 diesel engines connected to water jets that propel it faster than 35 knots (40 mph; 65 km/h), with a maximum range of 600 nmi (690 mi; 1,100 km). The reconfigurable main aft cabin can hold payloads such as Navy SEAL operators or a medical facility.