MAS 555

MAS 555

Saetta P-494

MS-53

MAS 555

Saetta P-494

MS-53

Italy

I Rank

Battle rating:

AB	RB	SB
1.0	1.0	1.0

Class:

Motor torpedo boat

Boat

Research:2 900

Purchase:700

Show in game

Description

The Velocissimo Classe 500, MAS 555 is a rank I Italian motor torpedo boat with a battle rating of 1.0 (AB/RB/SB). It was introduced in Update "Starfighters".

General info

Survivability and armour

Armourfront / side / back

Hull40 mm (wood)

Superstructure15 mm (wood)

Number of section3

Displacement29 t

Crew13 people

The MAS 555’s hull is protected only by 40 mm of wood with the superstructure featuring 15 mm of wood. It does not have any kind of external or internal armour this means that the ship is more vulnerable to ammunition. The survivability of the MAS 555 in general is poor because the ship only has 13 crew members, which makes it an easy target to destroy in combat.

Comparable options to the MAS 555 are the LS 3, the G-5, or the PT-6, they however have more survivability and can resist more shots.

Mobility

Speedforward / back

AB112 / 45 km/h

RB80 / 32 km/h

The MAS 555 is a very fast ship up to 80 km/h in RB, 112 km/h AB. It is very manoeuvrable, this makes it very fast and agile. Providing the ability to reach the enemy quickly to initiate a first strike by launching its torpedoes and allowing sneak attacks with its use of depth charges to destroy enemy boats easily with a few drops. Thanks to its agility, it can dodge shots and make surprise/lateral attacks.

Mobility Characteristics
Game Mode	Upgrade Status	Maximum Speed (km/h)		Turn Time (s)	Turn Radius (m)
		Forward	Reverse
AB	Stock	82	33	~20	~41.56
	Upgraded	112	45	~13	~25.29
RB/SB	Stock	68	28	~22	~46.69
	Upgraded	80	32	~19	~39.48

Modifications and economy

Repair costBasic → Reference

AB79 → 97

RB119 → 146

Total cost of modifications2 970

905

Talisman cost190

Crew training200

Experts1 000

Aces20

Research Aces96 000

Reward for battleAB / RB / SB

10 / 20 / 100 %

100 / 100 / 100 %

Modifications

Seakeeping	Unsinkability	Firepower
Dry-Docking Research: 200 Cost: 60 55 Rudder Replacement Research: 165 Cost: 50 45 Propeller Replacement Research: 250 Cost: 75 70 Engine Maintenance Research: 240 Cost: 75 65	Damage Control Division Research: 200 Cost: 60 55 Fire Division Research: 165 Cost: 50 45 Smokescreen Research: 165 Cost: 50 45 New Pumps Research: 240 Cost: 75 65	20mm_it_breda_he_ammo_pack Research: 200 Cost: 60 55 20mm_it_breda_ap_ammo_pack Research: 165 Cost: 50 45 Primary Armament Targeting Research: 250 Cost: 75 70 Depth Charges Research: 250 Cost: 75 70 Artillery Support Research: 240 Cost: 75 65 Torpedo Mode Research: 240 Cost: 75 65

Armament

Primary armament

Turret20 mm/65 Breda anti-aircraft gun

Ammunition1500 rounds

Belt capacity12 rounds

Fire rate240 shots/min

Vertical guidance-10° / 90°

The firing angles of the autocannon, unable to fire directly in front

The primary armament, in fact the only armament, is a Breda 20 mm cannon. It has a firerate of 240 shots/min and a 12 shot magazine before reloading for a minimum of 1.8 seconds. The cannon is unable to shot in front of the ship, it is necessary to locate broadside or turn your ship 180 degrees.

Three different belts containing two different shells are available:

• Perforante mod.35 (unlocked by default): API-T · HEFI-T
• Granata mod.35: HEFI-T · HEFI-T · HEFI-T · API-T
• Perforante mod.35: API-T · API-T · API-T · HEFI-T

These belts are mostly the same, the HEFI-T belt is slightly more suitable against wooden boats, like PT-6 and the MTB 1, as well as low flying aircraft, while the API-T belt is slightly more suitable against component damage and steel boats, like the LS 3 and the G-5.

Additional armament

Setup 12 x 450 mm steam turbined W.200/450X5,75 torpedo

Setup 26 x B TG depth charge

Setup 32 x 450 mm steam turbined W.200/450X5,75 torpedo

6 x B TG depth charge

Two 450 mm steam turbined W.200/450X5,75 torpedoes on the left and on the right of the ship are a useful tool against larger sub chasers and gunboats when being able to sneak up. They have a maximum speed 81 km/h, a range of 3 km, and an explosive filler of 200 kg, enough to destroy any ship at the battle rating.

The MAS is one of the reserve boats able to carry six B TG depth charges with an explosive filler of 50 kg. These however are extremely situational and most of the time defensive in nature, as you have to drive in front of the enemy ship, or wait for the enemy to pass you, to utilize these weapons. Furthermore, 50 kg of explosives is very weak for a depth charge, as most others have around 100-140 kg of TNT, limiting effective use even further.

But despite the drawbacks, making a kill with these is one of, if not the most, satisfying ways to destroy an enemy player and equally humiliating for those who are on the receiving end.

Usage in battles

The MAS 555 is a rather strange boat, despite being the reserve boat equipped with the largest calibre, its slow firerate and small magazine, as well as the inability to fire directly forwards drastically limits its potential. However, it can still be a significant threat to other ships.

The best strategy whilst using the cannon is not to drive forward into battle, but to turn your rear to the enemy, and sailing in reverse. This way you can negate the limiting firing arcs at the front and still only reveal a small part of the hull, which extends your life expectancy by a few crucial seconds. The best way is to stay behind cover and move only rearwards when engaging and then back into cover. A one on one fight against almost any other PT boat will not go in your favour, therefore the element of surprise is most important.

Pros and cons

Pros:

• Good Top speed forwards and backwards
• Good turn time
• Equipped with 2 torpedoes
• Good acceleration.

Cons:

• The 20 mm cannon can’t shoot in the front of the ship, angle of fire is only 270°
• The cannon has small magazines and a slow rate of fire
• Very unstable gun platform, can be very difficult to make precise shots
• Although it a good armament for a reserve boat, the 20 mm does not consistently inflict damage
• No anti-aircraft protection 
• Poor survivability: no armour and low crew count
• Aircraft can strafe the ship and knock it out with a few well placed shots. 

History

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 1000 Horses each.

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 MAS type "500" were small fast wooden boats, unlike the MAS of the First World War they were much faster, and they got different armaments with time and also different modifications.

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, increase in size and increase of the crew.

The MAS type "500" were produced in series:

1st Series 

The first units of the MAS "500" had a wooden hull (the MAS 525 had a metal hull) with a hull with two steps and a range of 400 miles at 42 knots and 1000 at 6 knots with auxiliary engines.

The 1st Series MAS are:

There were 26 units of 1st Series from MAS 501 to MAS 525 

and in particular the MAS 424 that had 3 Isotta Fraschini engines with 3 propellers instead of 2 but without auxiliary engines.

The 2nd Series MAS are:

There were 24 units of 2nd Series from MAS 526 to MAS 550.

The MAS of 2nd Series have the greater dimensions, were equipped of a hull in wood with hull to edge to two steps with an autonomy of 360 miles to the maximum speed and of 1100 to 6 knots, the MAS 550 in particular had the hull in metal.

The 3rd Series MAS are:

There were 13 units of 3°Serie from MAS 551 to MAS 564 divided into 2 groups.

1°Gruppo production from MAS 551 to MAS 554 with metal hull, range of 350 miles at maximum speed and 850 with auxiliary engines.

2nd Production group from MAS 555 to MAS 564 with wooden hull, range of 395 miles and 913 miles respectively.

The MAS of 3rd Series changed the 13.2mm Breda machine gun with the 20/65 Breda machine gun, this made the gun more effective at medium distances against enemies

The 4thSeries MAS are:

There were 12 units of the 4th Series from MAS 566 to MAS 576 these units were almost identical to those of the 3rdSeries with some minor changes such as the adoption of the helm of maneuver in the bridge, the replacement of the shaft with a support for the Breda 6.5mm machine gun and the increase in the supply of shots for the Breda machine gun 20/65

MAS in Play

1st Series: X

2nd Series: X

3rd Series: MAS 555, MAS 561 (Mod. RSI)

4th Series: MAS 569

History MAS 555:

After the armistice of 8 September 1943 the MAS 555 was used by Co-Belligerent Italy, in particular it was used together with two British motor boats against a German landing convoy on 12 November 1943, after a few hours the MAS 555 was sunk during the German landing at Rhodes.

Media

Skins

• Skins and camouflages for the MAS 555 from live.warthunder.com.

Images

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See also

• MAS 561
• MAS 569

External links

Paste links to sources and external resources, such as:

• topic on the official game forum;
• other literature.