The Indonesian Navy has ordered four X3K trimaran patrol boats. These 130 ton, triple hull vessels are built of carbon-fiber composite materials and are 62.5 meters (194 feet) long and can operate in as little as three meters (9.3 feet) of water. The trimarans have a top speed of 63 kilometers an hour. Cruising speed is 28 kilometers an hour. Two anti-ship missiles and some machine-guns will be carried. The X3Ks are being built in Indonesia. The main hull is long and thin, while the two other hulls are short and at the rear of the boat. The X3K is a radical design in many ways.