MAS 555

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Rank 4 USA
USS Helena 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

Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: https://wiki.warthunder.com/(Ship-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable).

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