MAS 555

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Rank 4 Japan
IJN Mikuma Pack
it_mas_classe500_3.png
GarageImage MAS 555.jpg
MAS 555
Research:2 900 Specs-Card-Exp.png
Purchase:700 Specs-Card-Lion.png
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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
AB120 → 148 Sl icon.png
RB150 → 185 Sl icon.png
Total cost of modifications2 990 Rp icon.png
900 Sl icon.png
Talisman cost190 Ge icon.png
Crew training200 Sl icon.png
Experts1 000 Sl icon.png
Aces20 Ge icon.png
Research Aces96 000 Rp icon.png
Reward for battleAB / RB / SB
20 / 20 / 100 % Sl icon.png
100 / 100 / 100 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Research:
200 Rp icon.png
Cost:
60 Sl icon.png
50 Ge icon.png
Mods new ship rudder.png
Rudder Replacement
Research:
170 Rp icon.png
Cost:
50 Sl icon.png
50 Ge icon.png
Mods new ship screw.png
Propeller Replacement
Research:
250 Rp icon.png
Cost:
80 Sl icon.png
70 Ge icon.png
Mods new ship engine.png
Engine Maintenance
Research:
240 Rp icon.png
Cost:
70 Sl icon.png
70 Ge icon.png
Mods ship tool kit.png
Tool Set
Research:
200 Rp icon.png
Cost:
60 Sl icon.png
50 Ge icon.png
Mods manual ship extinguisher.png
Fire Protection System
Research:
170 Rp icon.png
Cost:
50 Sl icon.png
50 Ge icon.png
Mods engine smoke screen system.png
Smokescreen
Research:
170 Rp icon.png
Cost:
50 Sl icon.png
50 Ge icon.png
Mods new ship pumps.png
New Pumps
Research:
240 Rp icon.png
Cost:
70 Sl icon.png
70 Ge icon.png
Mods tank ammo.png
20mm_it_breda_he_ammo_pack
Research:
200 Rp icon.png
Cost:
60 Sl icon.png
50 Ge icon.png
Mods tank ammo.png
20mm_it_breda_ap_ammo_pack
Research:
170 Rp icon.png
Cost:
50 Sl icon.png
50 Ge icon.png
Mods depth charge.png
Depth Charges
Research:
250 Rp icon.png
Cost:
80 Sl icon.png
70 Ge icon.png
Mods new main caliber turrets.png
Primary Armament Targeting
Research:
250 Rp icon.png
Cost:
80 Sl icon.png
70 Ge icon.png
Mods ship art support.png
Artillery Support
Research:
240 Rp icon.png
Cost:
70 Sl icon.png
70 Ge icon.png
Mods torpedo.png
Torpedo Mode
Research:
240 Rp icon.png
Cost:
70 Sl icon.png
70 Ge icon.png

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

MAS type "500"

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.

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. They got different armaments over 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, and increases in size and crew complement.

The MAS type "500" were produced in four 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.

There were 26 units of 1st Series from MAS 501 to MAS 525. In particular, the MAS 424 had 3 Isotta Fraschini engines with 3 propellers instead of 2 but without auxiliary engines.

There were 24 units of 2nd Series from MAS 526 to MAS 550. 2nd Series had the greater dimensions, were built with two-stepped wooden hulls, and had a range of 360 miles at maximum speed or 1,100 miles at 6 knots. MAS 550 had a metal hull.

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

1st Group from MAS 551 to MAS 554 had metal hulls, with a range of 350 miles at maximum speed and 850 miles with auxiliary engines.

2nd Group from MAS 555 to MAS 564 had wooden hulls, with a range of 395 miles and 913 miles respectively.

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

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

MAS type "500" in-game:

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
Images

See also

External links

Paste links to sources and external resources, such as:

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


Italy boats
Motor torpedo boats  MC-490 · Freccia P-493 · MAS 555 · MAS 561 · MAS 569
  MS-15 · MS-53 · MS-472 · Stefano Turr · VAS 201 · GIS 811
Motor gun boats  MS-473 · MV-611 · Sparviero
Motor torpedo gun boats  Saetta P-494