launchers. Together these provide 360 degrees of firing coverage. To defend against aircraft, the craft has a station for firing the Stinger Man-portable Air Defense System (MANPADS). Later improvements include mounting stations for GAU-17 Miniguns, MK 95 Twin .50 cal machine gun, MK 38 chain gun and Mk48 25 mm guns. Personal small arms of the crew and passengers can also be used to defend the craft. The Mark V has many special features, besides its weapons, that make it more survivable while delivering sailors to their missions. Its angular design and low silhouette reduces its radar signature making it harder to spot and detect. Its V-hull design gives it good handling qualities in rough water as well as speed and shallow draft (four feet when cruising on-step). Its twin MTU 12-cylinder TE94 Diesel engines give it power and reliability and, coupled with the two K50S water jets, provides fast acceleration for operations near shore or in shallow waters as well as cutting down on the rooster tail effect that can make fast boats easier to see and track. Mark V SOC Detachment The Mark V SOC will normally operate in a two craft detachment with a Mobile Support Team. The operational detachment—the basic Mark V SOC operating system—consists of: two Mark V special operations craft, each with a crew of five special warfare combatant-craft crewmen (also known as SWCCs); two Mark V SOC transporters, each with an M916A1E1 prime mover four M1097 HMMWVs with S250 shelters, two M1083 5-ton trucks for the 90-day containerized deployment support package (spare part, repair parts, consumables, etc.) one five-ton forklift; an eight-man maintenance support team, that provides technical assistance and maintenance support during mission turnaround. A Mark V SOC detachment is deployable on two USAF C-5 Galaxy aircraft to a theater of operations within 48 hours of notification and is prepared to commence operations within 24 hours after arriving at a forward staging location. The detachment can also be delivered in-theater by well or flight deck equipped surface ships with appropriate crane and deck space capabilities, and, if appropriate, under their own power. A detachment is also transportable by road. The Mark V SOC is operated by Naval Special Warfare Group THREE (formerly known as Special Boat Squadron ONE) and Naval Special Warfare Group FOUR (formerly known as Special Boat Squadron TWO) on the east and west coasts. Twelve Mark Vs are assigned