
The MAS type "500" were produced in four series.

The MAS type "500" were composed of almost 100 units, these wooden boats then obtained several modifications such as the use of metal instead of wood for the hull of the boat, and increases in size and crew complement. They got different armaments over time and also different modifications. The MAS type "500" were small fast wooden boats, unlike the MAS of the First World War they were much faster. This new class of MAS was studied by Cantieri Baglietto of Varazze and was shown to the Minister of the Navy and then accepted by Prime Minister Benito Mussolini. The project for the MAS type "500" was presented in November 1935, because Italy needed motorboats armed with modern torpedoes (for that time) with a guaranteed speed of 44 knots assured by 2 petrol engines Isotta Fraschini "Asso" of 1,000 horsepower each. 20 mm cannon has limited angles of fire.Terrible survivability in combat (compared to other ships).20 mm cannon has small magazines and slow rate of fire.One-on-one combat against almost any other reserve boat will not work in your favour, so the element of surprise is very important. The best way is to stay behind cover and only move backwards when engaging and then return to cover. This allows you to use the entire operational area of the weapons. The best choice when using the cannon and machine gun is not to sail forwards, but to stay to the side. The MAS 569 is a rather odd ship, the 20 mm cannon has a low rate of fire and small magazine, as well as being unable to fire directly forward, drastically limit its potential, but thanks to the 6.5 mm the MAS 569 gets a big advantage which is its rate of fire which can cause serious damage to enemy ships.

The B TGs with their 60 kg of explosive each are very effective to destroy ships that get a little too close, you can also flank the big ships and throw them at them. The second additional armament of the MAS 569 is the depth charge B TG, 6 depth charges can be used in total and are positioned at the back of the ship.

With their good speed and 200 kg of explosive, it will be child's play to sink a ship. These two torpedoes are excellent for quick attacks on larger ships. The first one is the W.200 torpedo, a torpedo that can navigate up to 81 km/h for 3 km, while losing 7 km/h but gaining 1,000 metres of range with the torpedo mode modification.

The MAS 569 is equipped with two types of additional armament.
