Since the Vietnam War last century, the US Navy's special operations forces have maintained a large number of special operations speedboats, especially riverside special operations speedboats used for rapid navigation of rivers. This speedboat is mainly fast deployment tactics, w

Since the Vietnam War last century, the US Navy's special operations forces have maintained a large number of special operations speedboats, especially riverside special operations speedboats used for rapid navigation of rivers. This speedboat is mainly fast deployment tactics, with a displacement of less than 10 tons. In addition to being able to directly airdrop with C-130 tactical transport aircraft, it can also be directly hung into the battlefield to perform separate infiltration tasks with MH-47D.

The biggest feature of the riverside special operations speedboat is that it has extremely powerful close-range attack firepower. The firepower configuration covers 360 degrees around the hull, and is equipped with two 7.62mm rotary machine guns on the bow of the boat, a 7.62mm machine gun on each side of the boat, and a 12.7mm machine gun on the stern of the boat to cope with multi-directional fire attacks.

If necessary, the bow and side machine gun seats of the boat can also be equipped with 40mm Mk.19 grenade machine guns for rapid suppression firepower of riverbank targets. So much firepower is installed because in most transnational infiltration tasks, whether it is a special operations team or the riverbank special operations boat responsible for the response, it is unlikely that the air support of the regular army will be obtained. If you encounter a strong enemy, you need to fight a path of blood when there are many enemies and we are few. Therefore, the riverbank special operations boats must be able to suppress the enemy with instantaneous superior firepower and then quickly leave the battlefield.

In addition to firepower, mobility is also an important factor in escape. Considering the sporty needs in inland combat, the new generation of riverbank special warships did not use the flat-bottomed hull used by US inland speedboats in the past, but instead changed to a shallow V-shaped hull with better handling. Although the draft of shallow hulls is deep, the space required for large turnovers of the rudder is smaller than that of the traditional flat-bottom hull design, and is more suitable for moving in narrow waters.

In order to give the riverbank special combat boats enough sprint speed to enter and leave the battlefield, they are equipped with two 440 horsepower diesel main engines and water jet thrusters, allowing the riverbank special combat boats to have a speed of up to 40 knots. Another advantage of using water jet propellers is that the riverbank special combat boats can quickly cross shallows and rivers covered with various aquatic plants without worrying about the danger of the blades being entangled and failing. The photoelectric reconnaissance instrument and global satellite positioning navigation system of the mainmast located in the middle of the hull can still come and go freely in the inland waterways without terrain and land positioning.

In addition to the riparian special warships, the riparian detachment and Marines of the U.S. Navy Expeditionary Combat Command are also small coastal special warships. The biggest difference in design between them is that they are modified with the hull of the active hard inflatable boat , and can only be operated in inland or semi-enclosed waters. In order to strengthen protection, the coastal special warships are on the side, cab and stern of the front half of the hull. All are equipped with composite armor. The coastal special warships do not have a large number of heavy weapons, but have a small landing door on the bow of the boat, so that the battle squad with the boat can go ashore to attack when needed. There are also multiple smoke bomb launchers on the stern of the boat, which can effectively cover them when it is necessary to evacuate quickly.

However, the above boats are limited by displacement and can only operate in inland or semi-enclosed waters. The larger Mark In order to effectively strengthen combat in harsh sea conditions, V special combat speedboats adopt traditional deep V skid hull design, which can operate effectively in most nearshore open waters. In order to effectively strengthen combat capabilities in harsh sea conditions, the US Navy also replaced the new carbon fiber hull with a strength of 1.5 times higher than the original aluminum alloy. Another advantage of the carbon fiber hull is the reduction in weight. Therefore, the maximum speed can reach 65 knots under the same fuel volume and the host. The

Mark V.1 special combat speedboat is also the command mothership for nearshore infiltration operations.In addition to loading two hard-shell inflatable boats, the ship is also equipped with various reconnaissance equipment and unmanned aircraft, which can continuously monitor large-scale sea areas or land target areas. Since the displacement reaches 57 tons, in addition to machine guns and grenade machine guns, 25mm Mk38 automatic guns can be installed, and shoulder-fired surface-to-air missiles can also be carried, MGM-114 Hellfire missiles and other weapons

The new generation of Mark special combat speedboats has increased the displacement to 72 tons, and the ship-based weapons have also been greatly strengthened. The V special combat speedboat can only be equipped with one 25mm Mk38 automatic gun, but the Mark special combat speedboat can be equipped with one 25mm Mk38 automatic gun at the bow and stern of the boat. The maximum speed is reduced to 45 knots,

, but the effective range at 25 knots of cruising speed is greatly increased to 1,390 kilometers, except for the Mark of the Special War Command. In addition to the V special combat speedboat, the US Navy's riverbank detachment also introduced the Swedish-produced CB-90 fast attack boat. The cabin can be loaded with half a platoon of soldiers.

Compared with the US military who like this special combat speedboat full of firepower, China is not very interested in special combat speedboats. The ships used by are mostly small auxiliary ships, hard-shell inflatable boats and assault boats, and there is no tactics for use in this regard. If you are not interested, it may not be of much use.