The G class, also known as the Marine Alutech Watercat M8 landing craft (, ) is a type of vessel in use by the Finnish Navy and the Swedish Navy. The G-boat was originally designed for the Swedish Navy which ordered about 100 of them. Its primary use is landing and transportation for the marines. It has a very low draught (approximately 20 cm) at high speeds which makes it ideal for amphibious assault even in shallow waters. It has a cargo capacity of 8 men or one ton.