Difference between revisions of "RN Etna"

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== Description ==
 
== Description ==
 
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' -->
 
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' -->
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The '''{{Specs|name}}''' is a rank {{Specs|rank}} Italian light cruiser {{Battle-rating}}. It was introduced in [[Update "Ixwa Strike"]].
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Originally commissioned for the Royal Thai Navy in 1938 as the lead ship of the two Taksin-class light cruisers, HTMS Taksin unfortunately never made it to Thailand due to Italy's urgent need for raw materials and thus were confiscated in 1942. Under her new ownership, Taksin was renamed Etna and reclassified as an anti-air cruiser. While being outfitted together with RN Vesuvio in the Trieste shipyards, Etna was captured by German forces on September 10 1943, after the proclamation of the Armistice, and was found half sunk at the liberation of Trieste in April 1945. It was struck off the Military Naval Register by decree of the Provisional Head of State on March 27 1947.
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The '''{{Specs|1=name}}''' was introduced in [[Update "Ixwa Strike"]]. It performs reasonably well as a light cruiser, but due to being designed specifically against aircraft, it may have difficulties when facing multiple targets such as destroyers and enemy cruisers. Naturally, the strongest part of the ship is the anti-aircraft armament, in fact, you will very rarely be destroyed by enemy planes thanks to your dense anti-aircraft defences. The manoeuvrability and speed are not bad, and the armour is also quite good, able to withstand several salvoes of enemy ships, though still weak to torpedoes, bombs and rockets.
  
 
== General info ==
 
== General info ==
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{{Specs-Fleet-Armour}}
 
{{Specs-Fleet-Armour}}
 
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' -->
 
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' -->
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The RN Etna is a unique ship, you cannot take an example from other ships. Its hull has many positive things but also several negative things. I start by saying Etna is a great ship at its battle rating, Its reinforcement is divided into 3 main thicknesses, starting with a 25mm front and followed by the side of the ship which is 60mm of armor and to finish we have the back of the ship with 35mm, all steel. It allows to block shots up to 152mm caliber with HE and SAP, APHE manage to pass but do not cause much damage, many fragments and debris are blocked by the remarkable protection against splinters of the ship (Hull 25mm steel).   
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[[File:RN Etna Armor.jpg|thumb|Overview of the protection scheme]]
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The {{PAGENAME}} is a unique ship as it isn't easily comparable to other ships. She's a great ship at her battle rating, with her bow and stern protected by 20 mm of RHA and citadel protected by 60 mm. This allows shots up to 152 mm HE to be blocked, while SAP or APHE are able to penetrate but do not cause much damage; many fragments will most likely be countered by the 25 mm RHA internal armour that separates the amidships.
  
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 And let's just say the hold is quite protected being located well below sea level. The ship is 146 meters long, 21 meters wide and 7.4 meters deep, the hull in general is very good, provide numbers for the protection  it is narrow enough to allow the ship to be agile despite the length is not obvious,  the draft is not very deep provide the number for the draft which further increases the maneuverability.   
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Furthermore, nearly all critical components are together with the armour below sea level. The ship is 146 m long, 21 m wide and 7.4 m deep. While the ship is quite long, it still is quite manoeuvrable thanks to its width. The draft is not very deep with it only being 5.79 m, which further increases the manoeuvrability.
  
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  At the same rating we can find the Isuzu with 510 members, the Krasny Kavkaz with 878 sailors and the Bartolomeo Colleoni with 521. Obviously, the more crew members there are on the ship, the more difficult it will be to sink, because the more people are operational, the less time it will take to repair and extinguish the ship in case of an attack. The crew is mostly located in the center of the ship behind the anti-aircraft and auxiliary guns. The main turrets are not overly armored (20mm steel), they are quite uncovered, which is a disadvantage that is not obvious, also the rear turrets can only rotate up to 200 degrees which greatly limits the combat.
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The Etna is crewed by 580 sailors and is her main source of durability. Meanwhile, her contemporaries at the same battle ratting have:
  
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  Let's see now how to sink this ship, a good shot under the front turret and the ship will explode in a big fire, you can also shoot right in the middle of the ship, right where most of the fuel is or if that's not enough aim under the two towers in the back of the ship and enjoy the explosion. To conclude we inform you that this ship has no torpedo armament. 
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* [[Attilio Regolo]]: 420
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* [[IJN Isuzu|Isuzu]]: 510
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* [[Bartolomeo Colleoni]]: 521
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* [[IJN Kako|Kako]]: 616
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 +
As with many ships, getting a good shot just under the front turret detonates the ammo rack and incapacitates most of the crew. Another possibility is setting the engines & fuel storage ablaze, slowing the ship down in the process. While most cruisers at Etna's battle rating are equipped with torpedoes that can detonate and do as much damage as an ammo rack explosion, the Etna isn't equipped with those.
  
 
=== Mobility ===
 
=== Mobility ===
 
{{Specs-Fleet-Mobility}}
 
{{Specs-Fleet-Mobility}}
 
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' -->
 
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' -->
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The maximum forward speed of the ship is 52km/h(32mph), while the maximum backward speed is -25km/h (15mph). The rudder is able to turn from one end to the other in 8 seconds, in case of danger the Etna is able to make a U-turn in 1 minute 32 seconds. You can see the very long hull that certainly does not help much to avoid enemy strikes and much less the torpedoes, Two Sulzer 12-ZAV-40S engines with a power of 11'600 Hp propel this 7000 ton ship at a maximum speed of 52km/h (32mph). The negative things instead are that being an old transport ship, it is quite large.   
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The maximum forward speed of the ship is {{Annotation|28 knots|52 km/h, 32 mph}} while the maximum reverse speed is {{Annotation|13 knots|25 km/h, 15 mph}}. The rudder can turn from one end to the other in 8 seconds. In case of danger, the Etna can make a U-turn in 1 minute 32 seconds. As the Etna is a converted long transport ship, it certainly does not help avoid enemy strikes and much less any torpedoes. Two Sulzer 12-ZAV-40S engines with a power of 11,600 hp propel this 7,000-ton ship at a maximum speed of {{Annotation|28 knots|52 km/h, 32 mph}}.
  
 
{{NavalMobility}}
 
{{NavalMobility}}
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{{Specs-Fleet-Primary}}
 
{{Specs-Fleet-Primary}}
 
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' -->
 
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' -->
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{{main|135 mm/45 O.T.O. Mod. 1938 (135 mm)}}
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{{main|135 mm/45 O.T.O. Mod. 1937 (135 mm)}}
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These weapons were designed to give about the same range as the 12 cm/50 (4.7") guns but with a lower muzzle velocity and with less dispersion. In fact, partly due to the wider barrel spacing used on the mountings, these guns had only a quarter of the dispersion of the 12 cm guns.
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 +
These weapons were designed to give about the same range as the [[120 mm/50 O.T.O. Mod.1936 (120 mm)|12 cm/50 (4.7")]] guns but with a lower muzzle velocity and less dispersion. In fact, partly due to the wider barrel spacing used on the mountings, these guns had only a quarter of the dispersion of the 12 cm guns.
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 +
They were used on the battleships Andrea Doria and Dulio as a secondary weapon and the Capitani Romani-class light cruisers as the main weapon. It had been intended to mount these weapons in the Comandanti Medaglie d'Oro and Etna classes in a new AA mounting, but these ships were not completed.
  
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Used on the battleships Andrea Doria and Dulio as a secondary weapon and on the "Capitani Romani" class light cruisers as the main weapon. It had been intended to mount these weapons in the "Comandanti Medaglie d'Oro" and Etna classes in a new AA mounting but these ships were not completed
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Etna's 135 mm has 7.5 seconds reload (ace crew) and its rating is not bad at all, compared to the 14 seconds of the [[Bartolomeo Colleoni]] and [[Krasny Kavkaz]].
  
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.
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The shell choice is not the best, but they are respectable: the HE has 1.8 kg (39.6 lbs) of explosive mass and total penetration of 23 mm, the APHE comes with 1.4 kg (30.8 lbs) and explosive and manage to penetrate 174 mm of armour and to finish has the HE-TF with the same amount of explosive as the HE. Talking about the ballistics, the Etna is found with quite slow shots compared to the above-mentioned ships. The HE, APHE, and HE-TF reach a speed of 825 m/s, which does not help much in long-distance flights.
  
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Etna's 135mm has a 7.5 seconds reload and at its rating is not bad at all, compared to the 14 seconds of the Bartholomew and Krasny Kavkaz. Its bullets are not the best, but they are respectable: the He have 1.8Kg(39.6 lbs) of explosive mass and a total penetration of 23mm, the ApHe come with 1.4Kg(30.8 lbs) and explosive and manage to penetrate 174mm of armor and to finish has the He-TF with the same amount of explosive as the He. Talking about the ballistics, the Etna is found with quite slow shots compared to the above mentioned ships. The He, the ApHe and the He-TF reach a speed of 825m/s, which does not help much in long distance fights. 
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For this ship, it is recommended to use the APHE shells as they are much more effective than the common HE, although using the APHE for all targets is not really indicated, for example, against destroyers or ships with thin armour HE is perfect. Due to the low speed of the shells, fighting beyond 10 km (6.2 miles) is not recommended as the guns will be less effective.
  
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For this ship we recommend the use of the ApHe as they are much more effective than the common He, although using the ApHe for all targets is not really indicated, for example against destroyers or ships with little armor He are perfect. Due to the low speed of the bullets, we do not recommend fighting beyond 10km (6.2 miles) as you could not do much damage.  
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{{:135 mm/45 O.T.O. Mod. 1937 (135 mm)/Ammunition|135 mm HE Dirompente, 135 mm APHEBC Perforante, 135 mm HE-TF Contro-aerea}}
  
 
=== Secondary armament ===
 
=== Secondary armament ===
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<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' -->
 
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' -->
 
{{main|65 mm/64 Ansaldo-Terni Mod.1939 (65 mm)}}
 
{{main|65 mm/64 Ansaldo-Terni Mod.1939 (65 mm)}}
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This medium-range AA gun was being developed by Ansaldo and Terni during World War II with some prototypes being completed, but it did not enter general service use. The loading equipment was electrically powered and included dual loading trays and a pantograph linkage rammer. 
 
  
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The Etna is equipped with 10 Ansaldo-Terni 65mm cannons that with their recharge of only 2 seconds do an important job for the ship, for example they keep away smaller ships that try to board you or they can be very effective against larger aircraft that do not yield with anti-aircraft defenses. The 65mm can be armed with 2 different types of projectiles, the He and the He-TF with both 450g (0.9 lbs) of explosive.
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Ansaldo and Terni developed this medium-range AA gun during World War II with some prototypes being completed, but it did not enter general service use. The loading equipment was electrically powered and included dual loading trays and a pantograph linkage rammer.
  
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As previously mentioned the He's are very useful to annoy larger ships by creating fires or destroying modules, while the He-TF's are very intuitive to use, they are very effective against aircraft, especially larger ones.   
+
The Etna is equipped with 10 Ansaldo-Terni 65 mm cannons that with their reload of only 2 seconds does an important job for the ship, for example, they keep away smaller ships that try to board you or they can be very effective against larger aircraft that do not yield with anti-aircraft defences. The 65 mm can be armed with 2 different types of projectiles, HE and HE-TF, with 450 g (0.9 lbs) of explosive filler.
 +
 
 +
As previously mentioned the HE shells are handy to annoy larger ships by creating fires or destroying modules, while the HE-TF is very intuitive to use, they are very effective against aircraft, especially larger ones.
 +
 
 +
{{:65 mm/64 Ansaldo-Terni Mod.1939 (65 mm)/Ammunition|65 mm HE-TF Contro Aerea, 65 mm HE Dirompente}}
  
 
=== Anti-aircraft armament ===
 
=== Anti-aircraft armament ===
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<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' -->
 
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' -->
 
{{main|20 mm/70 Scotti-Isotta Fraschini mod.1939 (20 mm)}}
 
{{main|20 mm/70 Scotti-Isotta Fraschini mod.1939 (20 mm)}}
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''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.''
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 +
The Scotti-Isotta Fraschini 20/70 was a multi-role weapon, which could be used as both an anti-aircraft and anti-tank function, available in both land and naval gun barrels. Development of the weapon began in 1928, by designer Alfredo Scotti,
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 +
The weapon employed the automatic recoil operation system, with a fixed barrel and geometric block of the bolt removed by gas action.
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 +
The Etna has at its disposal as many as twenty-one 20 mm anti-aircraft guns, of these, six are positioned at the front of the ship, just below the cockpit while the remaining fifteen are arranged evenly in the central part of the ship. These 20 mm cannons have 1,500 rounds of ammunition each and reload in 2.9 seconds. They are very effective against aircraft and can cause not inconsiderable damage to small ships. They have a maximum range of 3.5 km (11482 ft) and maximum effectiveness of 1.8 km (5905 ft) against both air and surface targets.
  
 
== Usage in battles ==
 
== Usage in battles ==
 
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' -->
 
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' -->
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''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).''
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As most light cruisers, the Etna is lowly ranked for a cruiser and it's best played in a supportive role and make use of the sheer amount of anti-aircraft cover. The Etna's 21 anti-aircraft guns will make quick work of any enemy planes attempting to sink the Etna or her surrounding fleet.
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 +
For multiple reasons, it's best to keep the ship slightly angled towards the enemy fleet allowing to make use of her armour and keeping her guns trained on target because the back turrets don't have full 360° rotation.
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 +
Some of the biggest threats to the {{PAGENAME}} are ships with automatic cannons such as the Russian [[Pr. 35|Project 35]], [[Pr._41_Neustrashimy|Project 41]], and [[Pr. 159|Project 159]], these pose one of the biggest threats to the {{PAGENAME}}, she will be destroyed easily due to their rapid-firing cannons, which can unleash up to 150 rounds a minute!
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 +
Destroyers and coastal water vessels will not do a lot of damage to the {{PAGENAME}}. Most of these ships will be nothing more than an annoyance to the Etna and can be cleanly sunk back to the hangar with a well-aimed salvo.
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Beware that the {{PAGENAME}}'s turrets only offer up to 6 mm armour protection; this is very weak, and any machine gun knockout the sailors inside of these modules. This means a few HE rounds will destroy {{PAGENAME}} primary weaponry, which would leave {{PAGENAME}} vulnerable to attack.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
 
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
 
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
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''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".''
 
  
 
'''Pros:'''
 
'''Pros:'''
  
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*
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* Good reload time of 7.5 seconds (ace crew) - allowing it to hold its own against rival ships
 +
* Outstanding crew survivability for a light cruiser; thanks to its internal anti-shrapnel armour and excessive hull size, shells that manage to penetrate will disperse quickly
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* 21 anti-aircraft guns allows you to provide excellent anti-aircraft coverage for your team
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* Its secondary armament is one of the most powerful at its battle rating. 10 x 65 mm cannons that reload in 2 seconds can do more damage than you think
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* Although the ship is quite long and not too fast, it can traverse quickly and smoothly
  
 
'''Cons:'''
 
'''Cons:'''
  
−
*
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* No torpedo armaments
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* Very long hull; this makes dodging torpedoes harder if they have been fired at your broadside
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* The fact that it is so long and has a very deep draft will cause the ship to wobble excessively during the turn, so you will not be able to shoot for a short period of time
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* Limited firing arc for the rear turrets, cannot turn 360 degrees, despite not having any superstructure that blocks them. Requires the ship to do a broadside manoeuvre to get all guns on target
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* Poorly armoured turrets with only 6 mm of protection, can be knocked out even by machine guns
  
 
== History ==
 
== 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: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
 
<!-- ''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: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
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''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: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).''
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The Etna class was a class of light cruisers of the Italian Royal Navy, composed of two units launched between 1941 and 1942.
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 +
The two units were ordered in 1938 by the Government of Thailand to the CRDA shipyard in Trieste as Taksin class, and their construction began in August-September 1939. After the outbreak of the Second World War, the Italian government considered the possibility of requisitioning them for use with its own navy, but the decision was formalized only in August 1942 with much delay; it was decided to complete the two ships, launched but not yet fitted out, as anti-aircraft cruisers for the escort of supply convoys, but work proceeded very slowly and in June 1943 were suspended with the units still largely incomplete.
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 +
In September 1943, the Germans captured the two hulls in Trieste, but no effort was made to complete them; self-sunken in May 1945, they were refloated and then scrapped immediately after the war.
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 +
Hull dimensions and propulsion system were kept identical to the previous ones. Still, all the original armament, as well as the aeronautical arrangements, were landed and replaced by new systems: the main armament would have been six 135/45 mm OTO/Ansaldo cannons, arranged in three newly designed twin towers (always one forward and two aft overlapping) equipped with an elevation such as to allow the use of the pieces both in anti-ship and anti-aircraft fire; always in anti-aircraft function would have been embarked six Ansaldo 65/64 mm cannons in single installations (a new model still being developed, then never entered service), as well as six twin installations of Breda 20/65 Mod. 1935. The rearrangement of the internal spaces led to four cargo holding capable of holding up to 1,000 soldiers or 500 tons of materials; there were also two small cranes at the bow and stern for cargo handling.
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The construction of the two units proceeded very slowly, both because of continuous reconsiderations on their design and the difficult war situation in Italy. In June 1943, it was decided to suspend the preparation. In September 1943, at the time of the armistice of Cassibile between Italy and the Allies, the completion of the two units was far from being finished, being only about 60-65% of the work. The two incomplete hulls fell into German hands at the time of the occupation of Trieste on 10 September 1943, but no effort was made to complete the two units; both, therefore, ended up self-sunken in May 1945 in Trieste at the time of the surrender of the German forces, being later salvaged and scrapped in 1948.
  
 
== Media ==
 
== Media ==
 
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
 
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
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''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
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;Skins
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* [https://live.warthunder.com/feed/camouflages/?vehicle=it_cruiser_etna_class Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
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;Images
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<gallery mode="packed-hover" heights="150px">
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Etna sailing away.png
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Etna sailing towards.png
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Etna midsection.png
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Etna top-down view.png
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</gallery>
  
 
== See also ==
 
== See also ==
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* ''reference to the series of the ship;''
 
* ''reference to the series of the ship;''
 
* ''links to approximate analogues of other nations and research trees.'' -->
 
* ''links to approximate analogues of other nations and research trees.'' -->
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''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
 
  
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* ''reference to the series of the ship;''
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* [[Attilio Regolo]]
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* ''links to approximate analogues of other nations and research trees.''
 
  
 
== External links ==
 
== External links ==
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''Paste links to sources and external resources, such as:''
 
''Paste links to sources and external resources, such as:''
  
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* ''topic on the official game forum;''
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* ''topic on the official game forum;.''
 
* ''other literature.''
 
* ''other literature.''
  
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{{ShipManufacturer CRDA}}
 
{{Italy light cruisers}}
 
{{Italy light cruisers}}

Latest revision as of 21:00, 25 June 2024

Rank VI USA | Premium | Golden Eagles
A-10A Thunderbolt (Early)
RN Etna
it_cruiser_etna_class.png
GarageImage RN Etna.jpg
RN Etna
Italy flag.png Italy
III Rank
Battle rating:
AB RB SB
4.7 4.7 4.7
Class:
Research:26 000 Specs-Card-Exp.png
Purchase:76 000 Specs-Card-Lion.png
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Description

Originally commissioned for the Royal Thai Navy in 1938 as the lead ship of the two Taksin-class light cruisers, HTMS Taksin unfortunately never made it to Thailand due to Italy's urgent need for raw materials and thus were confiscated in 1942. Under her new ownership, Taksin was renamed Etna and reclassified as an anti-air cruiser. While being outfitted together with RN Vesuvio in the Trieste shipyards, Etna was captured by German forces on September 10 1943, after the proclamation of the Armistice, and was found half sunk at the liberation of Trieste in April 1945. It was struck off the Military Naval Register by decree of the Provisional Head of State on March 27 1947.

The Etna-class, RN Etna, project was introduced in Update "Ixwa Strike". It performs reasonably well as a light cruiser, but due to being designed specifically against aircraft, it may have difficulties when facing multiple targets such as destroyers and enemy cruisers. Naturally, the strongest part of the ship is the anti-aircraft armament, in fact, you will very rarely be destroyed by enemy planes thanks to your dense anti-aircraft defences. The manoeuvrability and speed are not bad, and the armour is also quite good, able to withstand several salvoes of enemy ships, though still weak to torpedoes, bombs and rockets.

General info

Survivability and armour

Armourfront / side / back
Citadel25 / 60 / 35 mm
Main fire tower20 / 6 / 6 mm
Hull25 mm (steel)
Superstructure8 mm (steel)
Number of section8
Displacement7 000 t
Crew580 people
Overview of the protection scheme

The RN Etna is a unique ship as it isn't easily comparable to other ships. She's a great ship at her battle rating, with her bow and stern protected by 20 mm of RHA and citadel protected by 60 mm. This allows shots up to 152 mm HE to be blocked, while SAP or APHE are able to penetrate but do not cause much damage; many fragments will most likely be countered by the 25 mm RHA internal armour that separates the amidships.

Furthermore, nearly all critical components are together with the armour below sea level. The ship is 146 m long, 21 m wide and 7.4 m deep. While the ship is quite long, it still is quite manoeuvrable thanks to its width. The draft is not very deep with it only being 5.79 m, which further increases the manoeuvrability.

The Etna is crewed by 580 sailors and is her main source of durability. Meanwhile, her contemporaries at the same battle ratting have:

As with many ships, getting a good shot just under the front turret detonates the ammo rack and incapacitates most of the crew. Another possibility is setting the engines & fuel storage ablaze, slowing the ship down in the process. While most cruisers at Etna's battle rating are equipped with torpedoes that can detonate and do as much damage as an ammo rack explosion, the Etna isn't equipped with those.

Mobility

Speedforward / back
AB60 / 29 km/h
RB52 / 25 km/h

The maximum forward speed of the ship is 28 knots while the maximum reverse speed is 13 knots. The rudder can turn from one end to the other in 8 seconds. In case of danger, the Etna can make a U-turn in 1 minute 32 seconds. As the Etna is a converted long transport ship, it certainly does not help avoid enemy strikes and much less any torpedoes. Two Sulzer 12-ZAV-40S engines with a power of 11,600 hp propel this 7,000-ton ship at a maximum speed of 28 knots.

Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock ___ ___
Upgraded 60 29
RB/SB Stock ___ ___
Upgraded 52 25

Modifications and economy

Repair costBasic → Reference
AB4 238 → 5 496 Sl icon.png
RB5 381 → 6 979 Sl icon.png
Total cost of modifications26 800 Rp icon.png
50 500 Sl icon.png
Talisman cost1 100 Ge icon.png
Crew training22 000 Sl icon.png
Experts76 000 Sl icon.png
Aces500 Ge icon.png
Research Aces320 000 Rp icon.png
Reward for battleAB / RB / SB
310 / 600 / 100 % Sl icon.png
142 / 142 / 142 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods new ship rudder.png
Rudder Replacement
Research:
1 500 Rp icon.png
Cost:
2 800 Sl icon.png
170 Ge icon.png
Mods new ship screw.png
Propeller Replacement
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods new ship engine.png
Engine Maintenance
Research:
2 900 Rp icon.png
Cost:
5 400 Sl icon.png
330 Ge icon.png
Mods ship damage control crew.png
Damage Control Division
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods ship fire control crew.png
Fire Division
Research:
1 500 Rp icon.png
Cost:
2 800 Sl icon.png
170 Ge icon.png
Mods engine smoke screen system.png
Smokescreen
Research:
1 500 Rp icon.png
Cost:
2 800 Sl icon.png
170 Ge icon.png
Mods ship anti fragmentation protection.png
Shrapnel Protection
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods ship venting.png
Ventilation
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods new ship pumps.png
New Pumps
Research:
2 900 Rp icon.png
Cost:
5 400 Sl icon.png
330 Ge icon.png
Mods ship ammo wetting.png
Ammo Wetting
Research:
2 900 Rp icon.png
Cost:
5 400 Sl icon.png
330 Ge icon.png
Mods new aa caliber turrets.png
Anti-Air Armament Targeting
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods tank ammo.png
135mm_it_45cal_oto_ap_ammo_pack
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods tank ammo.png
65mm_asnalso_terni_navy_he_ammo_pack
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods new aux caliber turrets.png
Auxiliary Armament Targeting
Research:
1 500 Rp icon.png
Cost:
2 800 Sl icon.png
170 Ge icon.png
Mods new main caliber turrets.png
Primary Armament Targeting
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods he frag dist fuse ship.png
135mm_it_45cal_oto_he_df_ammo_pack
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png
Mods ship rangefinder.png
Improved Rangefinder
Research:
1 100 Rp icon.png
Cost:
2 100 Sl icon.png
125 Ge icon.png

Armament

Primary armament

3 х Turret2 x 135 mm/45 O.T.O. Mod. 1937 cannon
Ammunition320 rounds
Vertical guidance-5° / 45°
Main article: 135 mm/45 O.T.O. Mod. 1937 (135 mm)

These weapons were designed to give about the same range as the 12 cm/50 (4.7") guns but with a lower muzzle velocity and less dispersion. In fact, partly due to the wider barrel spacing used on the mountings, these guns had only a quarter of the dispersion of the 12 cm guns.

They were used on the battleships Andrea Doria and Dulio as a secondary weapon and the Capitani Romani-class light cruisers as the main weapon. It had been intended to mount these weapons in the Comandanti Medaglie d'Oro and Etna classes in a new AA mounting, but these ships were not completed.

Etna's 135 mm has 7.5 seconds reload (ace crew) and its rating is not bad at all, compared to the 14 seconds of the Bartolomeo Colleoni and Krasny Kavkaz.

The shell choice is not the best, but they are respectable: the HE has 1.8 kg (39.6 lbs) of explosive mass and total penetration of 23 mm, the APHE comes with 1.4 kg (30.8 lbs) and explosive and manage to penetrate 174 mm of armour and to finish has the HE-TF with the same amount of explosive as the HE. Talking about the ballistics, the Etna is found with quite slow shots compared to the above-mentioned ships. The HE, APHE, and HE-TF reach a speed of 825 m/s, which does not help much in long-distance flights.

For this ship, it is recommended to use the APHE shells as they are much more effective than the common HE, although using the APHE for all targets is not really indicated, for example, against destroyers or ships with thin armour HE is perfect. Due to the low speed of the shells, fighting beyond 10 km (6.2 miles) is not recommended as the guns will be less effective.

Penetration statistics
Ammunition Type of
warhead 		Penetration @ 0° Angle of Attack (mm)
1,000 m 2,500 m 5,000 m 7,500 m 10,000 m 15,000 m
HE Dirompente HE 23 23 23 23 23 23
APHEBC Perforante APHEBC 171 139 100 73 56 45
HE-TF Contro-aerea HE-TF 23 23 23 23 23 23
Shell details
Ammunition Type of
warhead 		Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(s) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (kg) 		Ricochet
0% 50% 100%
HE Dirompente HE 825 32.42 0 0.1 1.8 79° 80° 81°
APHEBC Perforante APHEBC 825 32.73 0.01 6 1.47 48° 63° 71°
HE-TF Contro-aerea HE-TF 825 32.42 0 0.1 1.8 79° 80° 81°

Secondary armament

10 х Turret65 mm/64 Ansaldo-Terni Mod.1939 cannon
Ammunition500 rounds
Main article: 65 mm/64 Ansaldo-Terni Mod.1939 (65 mm)

Ansaldo and Terni developed this medium-range AA gun during World War II with some prototypes being completed, but it did not enter general service use. The loading equipment was electrically powered and included dual loading trays and a pantograph linkage rammer.

The Etna is equipped with 10 Ansaldo-Terni 65 mm cannons that with their reload of only 2 seconds does an important job for the ship, for example, they keep away smaller ships that try to board you or they can be very effective against larger aircraft that do not yield with anti-aircraft defences. The 65 mm can be armed with 2 different types of projectiles, HE and HE-TF, with 450 g (0.9 lbs) of explosive filler.

As previously mentioned the HE shells are handy to annoy larger ships by creating fires or destroying modules, while the HE-TF is very intuitive to use, they are very effective against aircraft, especially larger ones.

Penetration statistics
Ammunition Type of
warhead 		Penetration @ 0° Angle of Attack (mm)
100 m 1,000 m 2,000 m 3,000 m 4,000 m 5,000 m
HE-TF Contro Aerea HE-TF 8 8 8 8 8 8
HE Dirompente HE 8 8 8 8 8 8
Shell details
Ammunition Type of
warhead 		Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(m) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (g) 		Ricochet
0% 50% 100%
HE-TF Contro Aerea HE-TF 950 4.08 0 0.1 450 79° 80° 81°
HE Dirompente HE 950 4.08 0 0.1 450 79° 80° 81°

Anti-aircraft armament

21 х Turret20 mm/70 Scotti-Isotta Fraschini mod.1939 autocannon
Ammunition1500 rounds
Belt capacity12 rounds
Fire rate230 shots/min
Main article: 20 mm/70 Scotti-Isotta Fraschini mod.1939 (20 mm)

The Scotti-Isotta Fraschini 20/70 was a multi-role weapon, which could be used as both an anti-aircraft and anti-tank function, available in both land and naval gun barrels. Development of the weapon began in 1928, by designer Alfredo Scotti,

The weapon employed the automatic recoil operation system, with a fixed barrel and geometric block of the bolt removed by gas action.

The Etna has at its disposal as many as twenty-one 20 mm anti-aircraft guns, of these, six are positioned at the front of the ship, just below the cockpit while the remaining fifteen are arranged evenly in the central part of the ship. These 20 mm cannons have 1,500 rounds of ammunition each and reload in 2.9 seconds. They are very effective against aircraft and can cause not inconsiderable damage to small ships. They have a maximum range of 3.5 km (11482 ft) and maximum effectiveness of 1.8 km (5905 ft) against both air and surface targets.

Usage in battles

As most light cruisers, the Etna is lowly ranked for a cruiser and it's best played in a supportive role and make use of the sheer amount of anti-aircraft cover. The Etna's 21 anti-aircraft guns will make quick work of any enemy planes attempting to sink the Etna or her surrounding fleet.

For multiple reasons, it's best to keep the ship slightly angled towards the enemy fleet allowing to make use of her armour and keeping her guns trained on target because the back turrets don't have full 360° rotation.

Some of the biggest threats to the RN Etna are ships with automatic cannons such as the Russian Project 35, Project 41, and Project 159, these pose one of the biggest threats to the RN Etna, she will be destroyed easily due to their rapid-firing cannons, which can unleash up to 150 rounds a minute!

Destroyers and coastal water vessels will not do a lot of damage to the RN Etna. Most of these ships will be nothing more than an annoyance to the Etna and can be cleanly sunk back to the hangar with a well-aimed salvo.

Beware that the RN Etna's turrets only offer up to 6 mm armour protection; this is very weak, and any machine gun knockout the sailors inside of these modules. This means a few HE rounds will destroy RN Etna primary weaponry, which would leave RN Etna vulnerable to attack.

Pros and cons

Pros:

  • Good reload time of 7.5 seconds (ace crew) - allowing it to hold its own against rival ships
  • Outstanding crew survivability for a light cruiser; thanks to its internal anti-shrapnel armour and excessive hull size, shells that manage to penetrate will disperse quickly
  • 21 anti-aircraft guns allows you to provide excellent anti-aircraft coverage for your team
  • Its secondary armament is one of the most powerful at its battle rating. 10 x 65 mm cannons that reload in 2 seconds can do more damage than you think
  • Although the ship is quite long and not too fast, it can traverse quickly and smoothly

Cons:

  • No torpedo armaments
  • Very long hull; this makes dodging torpedoes harder if they have been fired at your broadside
  • The fact that it is so long and has a very deep draft will cause the ship to wobble excessively during the turn, so you will not be able to shoot for a short period of time
  • Limited firing arc for the rear turrets, cannot turn 360 degrees, despite not having any superstructure that blocks them. Requires the ship to do a broadside manoeuvre to get all guns on target
  • Poorly armoured turrets with only 6 mm of protection, can be knocked out even by machine guns

History

The Etna class was a class of light cruisers of the Italian Royal Navy, composed of two units launched between 1941 and 1942.

The two units were ordered in 1938 by the Government of Thailand to the CRDA shipyard in Trieste as Taksin class, and their construction began in August-September 1939. After the outbreak of the Second World War, the Italian government considered the possibility of requisitioning them for use with its own navy, but the decision was formalized only in August 1942 with much delay; it was decided to complete the two ships, launched but not yet fitted out, as anti-aircraft cruisers for the escort of supply convoys, but work proceeded very slowly and in June 1943 were suspended with the units still largely incomplete.

In September 1943, the Germans captured the two hulls in Trieste, but no effort was made to complete them; self-sunken in May 1945, they were refloated and then scrapped immediately after the war.

Hull dimensions and propulsion system were kept identical to the previous ones. Still, all the original armament, as well as the aeronautical arrangements, were landed and replaced by new systems: the main armament would have been six 135/45 mm OTO/Ansaldo cannons, arranged in three newly designed twin towers (always one forward and two aft overlapping) equipped with an elevation such as to allow the use of the pieces both in anti-ship and anti-aircraft fire; always in anti-aircraft function would have been embarked six Ansaldo 65/64 mm cannons in single installations (a new model still being developed, then never entered service), as well as six twin installations of Breda 20/65 Mod. 1935. The rearrangement of the internal spaces led to four cargo holding capable of holding up to 1,000 soldiers or 500 tons of materials; there were also two small cranes at the bow and stern for cargo handling.

The construction of the two units proceeded very slowly, both because of continuous reconsiderations on their design and the difficult war situation in Italy. In June 1943, it was decided to suspend the preparation. In September 1943, at the time of the armistice of Cassibile between Italy and the Allies, the completion of the two units was far from being finished, being only about 60-65% of the work. The two incomplete hulls fell into German hands at the time of the occupation of Trieste on 10 September 1943, but no effort was made to complete the two units; both, therefore, ended up self-sunken in May 1945 in Trieste at the time of the surrender of the German forces, being later salvaged and scrapped in 1948.

Media

Skins
Images
  • Etna sailing away.png
  • Etna sailing towards.png
  • Etna midsection.png
  • Etna top-down view.png

See also

External links

Paste links to sources and external resources, such as:

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


Cantieri Riuniti dell'Adriatico (C.R.D.A)
Motor Torpedo/Gun Boats 
Motosilurante CRDA 60 t Type I  MS-15 · MV-611*
Motosilurante CRDA 60 t Type II  MS-53
Motosilurante CRDA 60 t Convertibile  MS-472 · MS-473
Folgore-class  MC-490
Freccia-class  Saetta P-494
Light Cruisers 
Etna-class  RN Etna
  *MS-11 converted to a motovedette (patrol boat)

Italy light cruisers
Condottieri-class  RN Bartolomeo Colleoni · RN Raimondo Montecuccoli · RN Eugenio di Savoia · RN Duca degli Abruzzi
Capitani Romani-class  RN Attilio Regolo
Etna-class  RN Etna

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