Syonan

From War Thunder Wiki
Jump to: navigation, search
Rank IV USSR | Premium | Golden Eagles
Tu-1 Pack
jp_escort_hiburi_class_syonan.png
GarageImage Syonan.jpg
Syonan
AB RB SB
3.3 3.3 3.3
Class:
Research:220 000 Specs-Card-Exp.png
Purchase:640 000 Specs-Card-Lion.png
Show in game

Description

The Hiburi*-class, Shōnan, 1944 (昭南, namesake: Singapore island) was one of the many Japanese "Coastal Defense Ships" (Kaibōkan, 海防艦). These ships were small warships that performed tasks such as protecting the coast and escorting convoys. They were similar to American destroyer escorts or British frigates. Shōnan belonged to the 1st Maritime Escort Squadron of the Maritime Escort General Headquarters, and participated in escort missions on high-value "Hi convoys" between Japan and Singapore. On February 25, 1945, Shōnan was torpedoed and sunk by the US submarine USS Hoe (SS-258) during Operation Nan-Go in fleet Hi-92.

It was introduced in Update 1.91 "Night Vision". The Shōnan is a powerful ship that can wreak havoc on smaller vessels and airplanes, but it is vulnerable against destroyers and Shōnan's whole 25 mm ammo depot is in the bow of the ship. It needs careful sailing and distance from enemy MTBs and torpedoes. The plenty of 25 mm cannons are the best weapon for the volume of fire up to 2,000 m. Angling the ship's sides can protect the ammo rack from small AP rounds.

General info

Survivability and armour

Armourfront / side / back
Hull16 mm (steel)
Superstructure4 mm (steel)
Number of section6
Displacement1 004 t
Crew150 people
All of the ammo racks are below the waterline (marked blue), including both: 120 mm (red) and 25 mm (orange) cannons

The survivability of the Syonan is heavily dependent on what's engaging it. Its hull is armoured similarly to a Destroyer, with 23 mm of steel. This makes it largely immune from smaller calibre fire and certain smaller HE rounds. The only additional armour protection it has is present around the two main guns, 15 mm of antifragmentation armour, which again protects them against smaller calibre guns somewhat reliably.

The Syonan has two main weaknesses though. Firstly its size, because it's so large and slow it will take a huge amount of fire. Not every incoming round will score damage but over time it does all add up. Its size also makes it very vulnerable against torpedoes. The second prominent weakness is that the Syonan is very vulnerable to being ammo racked. This is due to the presence of two very large exposed ammo racks underneath each gun and they can be detonated by a few well placed AP shots, even smaller calibre guns can destroy the ammo rack, so it's important to never present a flat angle of the ammo storage.

Mobility

Speedforward / back
AB50 / 25 km/h
RB36 / 18 km/h

The Syonan is a relatively slow ship, reaching a max of 36 km/h in RB modes and 55 km/h in AB modes. The real issue though is with its mobility, it's very unresponsive to input and will take a fair while to come to a stop, engage reverse or turn. Safe to say its mobility holds the ship back a bit, as it spawns with the smaller vessels, it's very vulnerable to torpedoes- especially without any mobility upgrades. It also lacks the overall agility to escape from destroyers if caught out in the open.

Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock ___ ___
Upgraded 50 25
RB/SB Stock ___ ___
Upgraded 36 18

Modifications and economy

Repair costBasic → Reference
AB9 671 → 12 195 Sl icon.png
RB13 848 → 17 462 Sl icon.png
Total cost of modifications186 000 Rp icon.png
295 000 Sl icon.png
Talisman cost1 900 Ge icon.png
Crew training185 000 Sl icon.png
Experts640 000 Sl icon.png
Aces1 400 Ge icon.png
Research Aces620 000 Rp icon.png
Reward for battleAB / RB / SB
320 / 520 / 100 % Sl icon.png
184 / 184 / 184 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Research:
12 000 Rp icon.png
Cost:
19 000 Sl icon.png
320 Ge icon.png
Mods new ship rudder.png
Rudder Replacement
Research:
7 000 Rp icon.png
Cost:
11 000 Sl icon.png
185 Ge icon.png
Mods new ship screw.png
Propeller Replacement
Research:
12 000 Rp icon.png
Cost:
19 000 Sl icon.png
320 Ge icon.png
Mods new ship engine.png
Engine Maintenance
Research:
15 000 Rp icon.png
Cost:
24 000 Sl icon.png
400 Ge icon.png
Mods ship damage control crew.png
Damage Control Division
Research:
12 000 Rp icon.png
Cost:
19 000 Sl icon.png
320 Ge icon.png
Mods ship fire control crew.png
Fire Division
Research:
7 000 Rp icon.png
Cost:
11 000 Sl icon.png
185 Ge icon.png
Mods engine smoke screen system.png
Smokescreen
Research:
7 000 Rp icon.png
Cost:
11 000 Sl icon.png
185 Ge icon.png
Mods new ship pumps.png
New Pumps
Research:
15 000 Rp icon.png
Cost:
24 000 Sl icon.png
400 Ge icon.png
Mods tank ammo.png
25mm_type96_naval_ap_ammo_pack
Research:
12 000 Rp icon.png
Cost:
19 000 Sl icon.png
320 Ge icon.png
Mods new aux caliber turrets.png
Auxiliary Armament Targeting
Research:
7 000 Rp icon.png
Cost:
11 000 Sl icon.png
185 Ge icon.png
Mods tank ammo.png
25mm_type96_naval_incendiary_ammo_pack
Research:
7 000 Rp icon.png
Cost:
11 000 Sl icon.png
185 Ge icon.png
Mods he frag dist fuse ship.png
120mm_jp_type0_distant_fuse_naval_he_ammo_pack
Research:
7 000 Rp icon.png
Cost:
11 000 Sl icon.png
185 Ge icon.png
Mods new main caliber turrets.png
Primary Armament Targeting
Research:
12 000 Rp icon.png
Cost:
19 000 Sl icon.png
320 Ge icon.png
Mods ship rangefinder.png
Improved Rangefinder
Research:
12 000 Rp icon.png
Cost:
19 000 Sl icon.png
320 Ge icon.png
Mods depth charge.png
Depth Charges
Research:
12 000 Rp icon.png
Cost:
19 000 Sl icon.png
320 Ge icon.png
Mod arrow 0.png
Mods ship art support.png
Artillery Support
Research:
15 000 Rp icon.png
Cost:
24 000 Sl icon.png
400 Ge icon.png
Mods ship mortar.png
Bomb mortar
Research:
15 000 Rp icon.png
Cost:
24 000 Sl icon.png
400 Ge icon.png

Armament

Primary armament

Turret120 mm/45 10th year type cannon
Ammunition250 rounds
Vertical guidance-10° / 75°
Turret2 x 120 mm/45 10th year type cannon
Ammunition500 rounds
Vertical guidance-10° / 75°

The Syonan is equipped with two 120 mm/45 10th year type cannons for its primary weapon. They do a good amount of damage to smaller boats and reload quickly at 12 rounds a minute on an average crew. The guns also traverse fairly slowly at around 8.5 degrees a second, because of this they're a fairly poor weapon at closer ranges when needing to track small fast boats. These guns do have viability against the larger patrol vessels and destroyers you'll come across and will be your go-to weapon at longer ranges.

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
120 mm Type 1 HE HE 24 24 24 24 24 24
120 mm Type 0 HE HE-TF 24 24 24 24 24 24
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%
120 mm Type 1 HE HE 850 20.33 0 0.1 1.95 79° 80° 81°
120 mm Type 0 HE HE-TF 850 20.33 0 0.1 1.95 79° 80° 81°

Secondary armament

5 х Turret3 x 25 mm/60 Type 96 automatic cannon
Ammunition4500 rounds
Belt capacity15 rounds
Fire rate261 shots/min
Turret25 mm/60 Type 96 automatic cannon
Ammunition1500 rounds
Belt capacity15 rounds
Fire rate261 shots/min

The Syonan is equipped with 5 triple mountings and one single mounting of the Type 96 25 mm cannon. Against small unarmoured boats, these guns collectively make for an overwhelmingly powerful weapon, the volume of fire will destroy a small boat within a few seconds if the shots connect. The guns have 15 rounds in the magazine, but reload very quickly, and because of this have no overheating time so they can be fired continuously effectively. The guns come with three belts:

  • Universal- A mix of different HE rounds and an AP round, a decent mix for dealing with all types of craft.
  • APT- Predominantly armour piercing rounds, effective against armoured targets.
  • HEIT- Full HE belt, very high damage but no armour piercing capability.

Overall, the HEIT rounds perform the best, they have a huge damage output and will sink enemy vessels in seconds if a few of the mountings hit, but it's also recommended to take a few AP belts in case you run into an armoured riverboat.

Additional armament

Setup 114 x Type 95 depth charge
Setup 224 x Type 95 depth charge
Setup 324 x Type 95 depth charge
14 x Type 95 depth charge
Main article: Type 95 depth charge

The Syonan can carry 14 Type 95 depth charges, which can be dropped to maim other naval targets. They have rather limited viability though as most MTBs will be able to outrun the explosion. As this ship is large and slow, the only viability these charges have is against enemy MBTs sneaking up behind you, this is a fair rare occurrence, however.

Usage in battles

Syonan (1).jpg

First and foremost, the Syonan is a very powerful ship and has the potential to cause incredible damage to the enemy team if in favourable circumstances. It can be devastating against smaller ships, or vessels with little meaningful armour protection, but it's very weak against destroyers and enemy players that know how vulnerable the ammo racks are. Because of this, to be successful, the Syonan needs to be played carefully. Advancing too far into the map can be dangerous, as this allows for enemy MTBs to launch torpedoes at you at close range; as the Syonan is very slow, avoiding torpedoes can be very difficult. Because of this, it's recommended to not sail too close to choke points or cover around the hostile parts of the map as this allows for enemies to easily sneak up on you. In any case, watch MTBs closely, if you see them launch torpedoes, you can correct your course ahead of time to assure the torpedoes miss. It's a good idea to do this anyway just in case torpedoes have been launched without you knowing, so try not to sail straight for too long, as you lack the reactive mobility to alter your course quickly.

The most consistent weapon you have access to are the many 25 mm cannons spread all over the vessel, consider using these as your main weapon as they present a much more accurate and damaging weapon collectively than your two main cannons. They can work effectively up to around 2,000 m, any further than this and they will start losing potency. Also, try not to present a flat side angle to your enemies as this makes your ammo rack a very easy target. Try to angle the sides of the ship towards what you're engaging, this will stop some of the smaller calibre AP rounds from penetrating.

Pros and cons

Pros:

  • Extremely potent secondary armament
  • Can combat both vessels and aircraft effectively
  • Fairly survivable

Cons:

  • Relatively ineffective primary armament
  • Very easy to ammo rack
  • Fairly slow and unmanoeuvrable
  • Large target, easy to hit
  • No access to the shell chase camera for the primary armament

History

Syonan (昭南, name of Singapore under Japanese occupation) is the 11th ship of Mikura class Escort Ship (E20). Currently, she is classified as the 3rd ship of Hiburi-class Escort Ship (E20b).

Due to Japanese romanization, there are several variants of the ship's name in English. (Shonan, Shounan, Syounan, Syōnan, Shōnan)

She was laid down on 23 February 1944 and launched on 13 July 1944. Since 05 August 1944, she deployed with 1st Maritime Escort Group (海上護衛隊, 1KEg) and escorted several convoys between Singapore to Japan.

During the escort of Hi-92 convoy, she was sunk on 25 February 1945 by a torpedo from USS Hoe, SS-258.[1]

Media

Skins

See also

Vessels of similar role

External links

References


Hitachi Shipbuilding Corporation (日立造船株式会社)
Escort Boats (小護衛艇)  Ha-Go (mod. 1)
Escort Ships (海防艦) 
Hiburi-class  Syonan

Japan frigates
  IJN
Escort  IJN Syonan
  JMSDF
Destroyer Escort  JDS Akebono · JDS Ikazuchi · JDS Isuzu · JDS Chikugo
Destroyer  JDS Ayanami