Difference between revisions of "STB-2"

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{{Specs-Card|code=jp_st_b1}}
+
{{Specs-Card
 +
|code=jp_st_b1
 +
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.jpg}}
 +
}}
  
 
== Description ==
 
== Description ==
−
<!--''In the description, the first part needs to be about the history of the creation and combat usage of the vehicle, as well as its key features. In the second part, tell the reader about the ground vehicle in the game. Insert the screenshot of the vehicle. If the novice player does not remember the vehicle by name, they will immediately understand what kind of vehicle it is talking about.''-->
+
<!-- ''In the description, the first part should be about the history of the creation and combat usage of the vehicle, as well as its key features. In the second part, tell the reader about the ground vehicle in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
−
The '''{{specs|name}}''' is a Rank {{specs|rank}} Japanese medium tank {{Battle-rating|1}}. It was introduced along with the entire Japanese Ground Forces tree in [[Update_1.65_"Way_of_the_Samurai"|Update 1.65 "Way of the Samurai"]]. The prototype of the [[Type 74]], the STB-1 presents many features that would be in the final design.
+
The '''{{Specs|name}}''' is the prototype of the [[Type 74]], which was developed shortly after the introduction of the [[Type 61]]. Due to Japan's late entry into post-war tank development, they were behind by one tank generation and had to compare their Type 61s to more advanced tanks such as the [[T-62]]s, [[M60]]s and [[Leopard 1]]s. To keep up with these advancements, Japan sought to upgrade their tanks with the primary goal of incorporating the new standard [[L7 (105 mm) (Family)|L7 rifled cannon]].
  
−
The STB-1 is the first researchable tank in Japan's Ground Forces Rank V. Despite having considerable more armour than its comparable counterparts the Leopard 1 and Leopard A1A1, as well as comparable mobility, it is not recommended as a front-line tank like the 'Allied' counterparts. Instead, a cautious hit-and-run tactic like the Leopards should always be employed. Using the tank's [[hydropneumatic suspension]] correctly can help with the tank's depression, and in some cases, aid in survivability. Do note that the L7 on this tank reloads significantly longer than other L7-equipped tanks.
+
It was introduced in [[Update 1.65 "Way of the Samurai"]] along with the initial Japanese Ground Forces tree. Although the STB-2 has considerably more armour than its counterparts, such as the [[Leopard 1]] and [[AMX-30 (Family)|early AMX-30s]], and has comparable mobility, it is not recommended for use as a front-line tank. Instead, it is best to employ a cautious hit-and-run tactic similar to that used with Leopards. Proper use of the tank's [[hydropneumatic suspension]] can improve its depression and, in some cases, aid in survivability. Additionally, the STB-2 is equipped with a laser rangefinder, giving it superior long-range capabilities over other tanks of its rank. This allows it to be highly accurate with low-velocity HESH or quickly acquire target range with APDS.
−
 
 
−
The STB-1 is unique among being one of the only Japanese tanks that can take a hit, like the Type 4 Chi-To Late and Type 5 Ho-Ri Production. It has thick frontal hull armour that can bounce shots effectively, but should not be relied on. The tank is quite fast and is further aided by the Hydropneumatic suspension, which allows this tank to manoeuvre the battlefield much like a Leopard, however the abundance of larger, more open maps at higher ranks means that getting from point A to B - and not getting shot - is not a simple as it sounds.
 
  
 
== General info ==
 
== General info ==
 
=== Survivability and armour ===
 
=== Survivability and armour ===
−
<!--''Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpfull for survival in combat?''
+
{{Specs-Tank-Armour}}
−
 
+
<!-- ''Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpful for survival in combat? If necessary use a visual template to indicate the most secure and weak zones of the armour.'' -->
−
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''-->
 
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
 
! Armour !! Front !! Sides !! Rear !! Roof
 
! Armour !! Front !! Sides !! Rear !! Roof
 
|-
 
|-
−
| Hull || 40-80 mm (64-73°) ''Front glacis'' <br> 100 (26°), 80 mm (58-66°)''Lower glacis'' || 35-40 mm (44°) ''Top'' <br> 40 mm (0-55°) ''Bottom'' || 25 mm (1-46°) || 20 mm
+
| Hull || 40-80 mm (64-73°) ''Front glacis'' <br> 100 (26°), 80 mm (58-66°)''Lower glacis'' || 35-40 mm (44°) ''Top'' <br> 40 mm (0-55°) ''Bottom'' || 25 mm (1-46°) || 20 mm
 
|-
 
|-
 
| Turret || 132 mm (12-66°) ''Turret front'' <br> 100-200 mm (1-66°) ''Gun mantlet'' || 132 mm (1-54°) <br> 75 mm (26-61°) ''Rear'' || 40 mm (1-64°) <br> 40 mm (36-82°) ''Turret underside''|| 67 mm ''Front'' <br> 20 mm ''Rear''
 
| Turret || 132 mm (12-66°) ''Turret front'' <br> 100-200 mm (1-66°) ''Gun mantlet'' || 132 mm (1-54°) <br> 75 mm (26-61°) ''Rear'' || 40 mm (1-64°) <br> 40 mm (36-82°) ''Turret underside''|| 67 mm ''Front'' <br> 20 mm ''Rear''
 
|-
 
|-
−
! Armour !! Sides !! Roof
+
| Cupola || 30 mm || 30 mm || 30 mm || 30 mm
−
|-
 
−
| Cupola || 30 mm || 30 mm
 
 
|-
 
|-
 
|}
 
|}
 
'''Notes:'''
 
'''Notes:'''
 +
 
* Suspension wheels and tracks are 20 mm thick.
 
* Suspension wheels and tracks are 20 mm thick.
 
* Driver's vision port on the front glacis are only 50 mm thick.
 
* Driver's vision port on the front glacis are only 50 mm thick.
Line 33: Line 32:
  
 
=== Mobility ===
 
=== Mobility ===
−
<!--''Write about the mobility of the ground vehicle. Estimate the specific power and maneuverability as well as the maximum speed forward and backward.''-->
+
{{Specs-Tank-Mobility}}
−
{| class="wikitable" style="text-align:center"
+
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
−
|-
+
 
−
!colspan="3" | Mobility characteristic
+
{{tankMobility|abMinHp=1,348|rbMinHp=769}}
−
|-
+
 
−
! Weight (tons)
+
=== Modifications and economy ===
−
!colspan="1" | Add-on Armour<br>weight (tons)
+
{{Specs-Economy}}
−
!colspan="1" | Max speed (km/h)
 
−
|-
 
−
|rowspan="2" | 37.8 || colspan="1" rowspan="2" | N/A || colspan="1" | 59 (AB)
 
−
|-
 
−
|53 (RB/SB)
 
−
|-
 
−
!colspan="3" | Engine power (horsepower)
 
−
|-
 
−
!colspan="1" | Mode
 
−
!Stock
 
−
!Upgraded
 
−
|-
 
−
|''Arcade''
 
−
|1,162
 
−
|____
 
−
|-
 
−
|''Realistic/Simulator''
 
−
|663
 
−
|____
 
−
|-
 
−
!colspan="3" | Power-to-weight ratio (hp/ton)
 
−
|-
 
−
!colspan="1" | Mode
 
−
!Stock
 
−
!Upgraded
 
−
|-
 
−
|''Arcade''
 
−
|30.74
 
−
|__.__
 
−
|-
 
−
|''Realistic/Simulator''
 
−
|17.54
 
−
|__.__
 
−
|-
 
−
|}
 
  
 
== Armaments ==
 
== Armaments ==
 +
{{Specs-Tank-Armaments}}
 
=== Main armament ===
 
=== Main armament ===
−
<!--''Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibilty of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: <code><nowiki>{{main|Name of the weapon}}</nowiki></code>. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.''-->
+
{{Specs-Tank-Weapon|1}}
 +
<!-- ''Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibility of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: <code><nowiki>{{main|Name of the weapon}}</nowiki></code>. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.'' -->
 
{{main|L7A3 (105 mm)}}
 
{{main|L7A3 (105 mm)}}
  
−
{| class="wikitable" style="text-align:center"
+
{| class="wikitable" style="text-align:center" width="100%"
 
|-
 
|-
−
! colspan="6" | [[L7A3 (105 mm)|105 mm L7A3]]
+
! colspan="5" | [[L7A3 (105 mm)|105 mm L7A3]] || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
 
|-
 
|-
−
! colspan="3" rowspan="1" style="width:5em" |Capacity
+
! Mode !! Capacity !! Vertical !! Horizontal !! Stabilizer
−
! rowspan="1" | Vertical <br> guidance
+
! Stock !! Upgraded !! Full !! Expert !! Aced
−
! rowspan="1" | Horizontal <br> guidance
+
! Stock !! Full !! Expert !! Aced
−
! rowspan="1" | Stabilizer
 
 
|-
 
|-
−
| colspan="3" | 50 || -6°/+9° || ±180° || Two-plane
+
! ''Arcade''
 +
| rowspan="2" | 50 || rowspan="2" | -6°/+9° || rowspan="2" | ±180° || rowspan="2" | Two-plane || 22.8 || 31.6 || 38.4 || 42.5 || 45.2 || rowspan="2" | 8.71 || rowspan="2" | 7.70 || rowspan="2" | 7.10 || rowspan="2" | 6.70
 
|-
 
|-
−
! colspan="6" | Turret rotation speed (°/s)
+
! ''Realistic''
−
|-
+
| 14.3 || 16.8 || 20.4 || 22.6 || 24.0
−
! style="width:4em" |Mode
 
−
! style="width:4em" |Stock
 
−
! style="width:4em" |Upgraded
 
−
! style="width:4em" |Prior + Full crew
 
−
! style="width:4em" |Prior + Expert qualif.
 
−
! style="width:4em" |Prior + Ace qualif.
 
−
|-
 
−
| ''Arcade'' || 22.85 || __.__ || __.__ || __.__ || __.__
 
−
|-
 
−
| ''Realistic'' || 14.28 || 16.8 || 20.4 || __.__ || __.__
 
−
|-
 
−
! colspan="4" | Reloading rate (seconds)
 
−
|-
 
−
! colspan="1" style="width:4em" |Stock
 
−
! colspan="1" style="width:4em" |Prior + Full crew
 
−
! colspan="1" style="width:4em" |Prior + Expert qualif.
 
−
! colspan="1" style="width:4em" |Prior + Ace qualif.
 
−
|-
 
−
| 10.8 || 9.6 || __.__ || __.__
 
 
|-
 
|-
 
|}
 
|}
  
−
===== Ammunition =====
+
==== Ammunition ====
−
{| class="wikitable sortable" style="text-align:center" width="100%"
+
{{:L7A3 (105 mm)/Ammunition|M392A2, Type 75, M416}}
−
! colspan="8" | Penetration statistics
 
−
|-
 
−
! rowspan="2" data-sort-type="text" | Ammunition
 
−
! rowspan="2" class="unsortable" | Type of <br /> warhead
 
−
! colspan="6" | '''Penetration''' '''''in mm''''' '''@ 90°'''
 
−
|-
 
−
! 10m
 
−
! 100m
 
−
! 500m
 
−
! 1000m
 
−
! 1500m
 
−
! 2000m
 
−
|-
 
−
| M392A2 || APDS || 303 || 302 || 296 || 277 || 257 || 252
 
−
|-
 
−
| M393 || HESH || 127 || 127 || 127 || 127 || 127 || 127
 
−
|-
 
−
| M456 || HEATFS || 400 || 400 || 400 || 400 || 400 || 400
 
−
|-
 
−
|}
 
−
{| class="wikitable sortable" style="text-align:center" width="100%"
 
−
! colspan="11" | Shell details
 
−
|-
 
−
! rowspan="2" data-sort-type="text" | Ammunition
 
−
! rowspan="2" class="unsortable" | Type of <br /> warhead
 
−
! rowspan="2" |Velocity <br /> in m/s
 
−
! rowspan="2" |Projectile<br />Mass in kg
 
−
! rowspan="2" | ''Fuse delay''
 
−
''in m:''
 
−
! rowspan="2" | ''Fuse sensitivity''
 
−
''in mm:''
 
−
! rowspan="2" | ''Explosive Mass in g<br /> (TNT equivalent):''
 
−
! rowspan="2" | ''Normalization At 30° <br> from horizontal:''
 
−
! colspan="3" | ''Ricochet:''
 
−
|-
 
−
! 0%
 
−
! 50%
 
−
! 100%
 
−
|-
 
−
| M392A2 || APDS || 1,478 || 5.8 || N/A || N/A || N/A || +1.5° || 75° || 78° || 80°
 
−
|-
 
−
| M393 || HESH || 730 || 15 || 0.4 || 0.1 || 4,310 || +0° || 73° || 77° || 80°
 
−
|-
 
−
| M456 || HEATFS || 1,173 || 11 || 0.0 || 0.1 || 1,270 || +0° || 65° || 72° || 75°
 
−
|-
 
−
|}
 
  
−
===== [[Ammo racks|Ammo racks]] =====
+
==== [[Ammo racks]] ====
−
{| class="wikitable sortable" style="text-align:center"
+
[[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]]
 +
<!-- '''Last updated: 1.101.1.16''' -->
 +
{| class="wikitable" style="text-align:center"
 
|-
 
|-
−
! class="wikitable unsortable" |Full<br /> ammo
+
! Full<br>ammo
−
! class="wikitable unsortable" |1st<br /> rack empty
+
! 1st<br>rack empty
−
! class="wikitable unsortable" |2nd<br /> rack empty
+
! 2nd<br>rack empty
−
! class="wikitable unsortable" |3rd<br /> rack empty
+
! 3rd<br>rack empty
−
! class="wikitable unsortable" |4th<br /> rack empty
+
! 4th<br>rack empty
−
! class="wikitable unsortable" |Visual<br /> discrepancy
+
! Visual<br>discrepancy
 
|-
 
|-
−
|| '''50''' || 44&nbsp;''(+6)'' || 16&nbsp;''(+34)'' || 10&nbsp;''(+40)'' || 1&nbsp;''(+49)'' || style="text-align:left" | No  
+
| '''50''' || 44&nbsp;''(+6)'' || 16&nbsp;''(+34)'' || 10&nbsp;''(+40)'' || 1&nbsp;''(+49)'' || No
 
|-
 
|-
 
|}
 
|}
 +
'''Notes''':
  
−
Hull floor empty: 44&nbsp;''(+6)''
+
* Hull floor empty: 16&nbsp;''(+34)'' shells
 +
* Shells are modeled individually and disappear after having been shot or loaded.
 +
* Racks 3 and 4 are first stage ammo racks. They total 15 shells and get filled first when loading up the tank.
 +
* These racks are also emptied early: the rack depletion order at full capacity is: 3 - 4 - 1 - 2.
 +
* Simply not firing when the gun is loaded will move ammunition from rack 1 then 2 into ready rack 4 then 3. Firing will interrupt the restocking of the ready racks.
  
 
=== Machine guns ===
 
=== Machine guns ===
−
<!--''Offensive and anti-aircraft machine guns not only allow you to fight some aircraft, but also are effective against lightly armoured vehicles. Evaluate machine guns and give recommendations on its use.''-->
+
{{Specs-Tank-Weapon|2}}
−
{{main|Browning M2 (12.7 mm)|Browning (7.62 mm)}}
+
{{Specs-Tank-Weapon|3}}
 +
<!-- ''Offensive and anti-aircraft machine guns not only allow you to fight some aircraft but also are effective against lightly armoured vehicles. Evaluate machine guns and give recommendations on its use.'' -->
 +
{{main|M2HB (12.7 mm)|M1919A4 (7.62 mm)}}
  
−
{| class="wikitable" style="text-align:center"
+
{| class="wikitable" style="text-align:center" width="50%"
 
|-
 
|-
−
! colspan="7" | [[Browning M2 (12.7 mm)|12.7 mm M2HB]]
+
! colspan="5" | [[M2HB (12.7 mm)|12.7 mm M2HB]]
 
|-
 
|-
−
! colspan="7" | ''Pintle mount''
+
! Mount !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal
 
|-
 
|-
−
! colspan="4" rowspan="1" style="width:5em" |Capacity (Belt capacity)
+
| Pintle || 800 (200) || 577 || -10°/+40° || ±180°
−
! rowspan="1" | Fire rate <br> (shots/minute)
 
−
! rowspan="1" | Vertical <br> guidance
 
−
! rowspan="1" | Horizontal <br> guidance
 
−
|-
 
−
| colspan="4" | 660 (200) || 577 || -10°/+40° || ±180°
 
 
|-
 
|-
 
|}
 
|}
−
{| class="wikitable" style="text-align:center"
+
{| class="wikitable" style="text-align:center" width="50%"
−
|-
 
−
! colspan="7" | [[Browning (7.62 mm)|7.62 mm M1919A4]]
 
 
|-
 
|-
−
! colspan="7" | ''Coaxial mount''
+
! colspan="5" | [[M1919A4 (7.62 mm)|7.62 mm M1919A4]]
 
|-
 
|-
−
! colspan="4" rowspan="1" style="width:5em" |Capacity (Belt capacity)
+
! Mount !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal
−
! rowspan="1" | Fire rate <br> (shots/minute)
 
−
! rowspan="1" | Vertical <br> guidance
 
−
! rowspan="1" | Horizontal <br> guidance
 
 
|-
 
|-
−
| colspan="4" | 4,500 (250) || 500 || N/A || N/A
+
| Coaxial || 4,500 (250) || 500 || - || -
 
|-
 
|-
 
|}
 
|}
  
−
== Usage in the battles ==
+
== Usage in battles ==
−
''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''
+
<!-- ''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).'' -->
 +
The STB-2 can be compared to the [[Leopard I]] or even a stock [[Leopard A1A1]], but has its own capabilities in its own right. The STB-2 allows for both a more held down playstyle or aggressive playstyle versus the Leopard I due to its [[Hydropneumatic suspension|hydropneumatic suspension]] and two-plane stabilizer. Together with the power of the engine outfitted on the STB-2, allows it to speedily move to a nice sniper spot or hull-down position and fire at targets before they realize a tank could be there.
 +
 
 +
The STB-2 possesses a pretty nice angled upper front plate, but do keep in mind that the STB-2 wasn't designed to take a punch, only to deal a punch, so even with the good angle you shouldn't rely too heavily on it, as shells can penetrate it and won't always bounce off. Do keep this fully in mind especially when taking more shells with the vehicle, as the fuel tank next to the driver will be filled with extra shells, which can blow up the whole tank if a shell does eventually penetrate.
 +
 
 +
With the addition of a 12.7 mm machine gun, the STB-2 can make short work of ZSU's or light tanks alike if the heat of the battle doesn't allow for the main gun or in-case of more important targets requiring the main gun's firepower.
 +
 
 +
With only 2 shells to choose from being APDS & HESH, APDS can be used for long-distance engagements and HESH can deal with light to medium armoured vehicles with overpressure damage, this can be done at a long range once the laser rangefinder has been unlocked as well. But due to the low velocity of the HESH round it has to be fired at a stationary target at long range to effectively hit.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
−
<!--''Summarize and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Do not use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - they have a substitution in the form of softer "inadequate", "effective".''-->
+
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a 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:'''
−
* Highly mobile, comparable to the German [[Leopard_I|Leopard I]].
+
 
−
* More armour than the German Leopard (around 100m hull and turret).
+
* 105 mm L7 cannon found on other NATO tanks
−
* 105 mm L7 cannon found on other NATO tanks.
+
* 12.7 mm Browning M2HB machine gun
−
* May bounce APHE shells.
+
* Two-plane stabilizer that allows it to fire on the move
−
* Low profile.
+
* Highly mobile
−
* Utilization of [[Hydropneumatic suspension|hydropneumatic suspension]] allows for various offensive and defensive options.
+
* Armour may bounce APHE shells
−
* 12.7 mm Browning Machine Gun.
+
* Low profile
 +
* Utilization of [[hydropneumatic suspension]] allows for various offensive and defensive options
 +
* Laser rangefinder
 +
 
 
'''Cons:'''
 
'''Cons:'''
−
* Other areas are lightly armoured, vulnerable to high penetrating SPAA.
+
 
−
* Reload and top speed slower than Leopard.
+
* Some areas are lightly armoured, vulnerable to high penetrating SPAAs
−
* Small gun elevation angle.
+
* Poor gun elevation angle
  
 
== History ==
 
== History ==
−
<!--''Describe the history of the creation and combat usage of the ground vehicle in more detail than in the introduction. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/historical reference" (example: https://wiki.warthunder.com/Name-vehicles/historical reference) and add a link to it here using the <code>main</code> template. Be sure to include links to sources at the end of the article.''-->
+
<!-- ''Describe the history of the creation and combat usage of the vehicle 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 vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-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 vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
 
The prototype for the Type 74. Known in Japanese as 74式戦車の試作車STB-1 (ななよんしきせんしゃのしさくしゃSTB-1). Created in September 1969 along with STB-2 in the STT program. Due to issues with cost effectiveness these two prototypes were not considered for the replacement of the Type 61. In a bid to reduce costs STB-3, STB-4, STB-5 and STB-6 were produced between April 1970 to December 1971. The final judgement for the STT program was held in November 1973 which lead the line to be completed in 1974. And, production started the following year in 1975 for the [[Type 74]].
 
The prototype for the Type 74. Known in Japanese as 74式戦車の試作車STB-1 (ななよんしきせんしゃのしさくしゃSTB-1). Created in September 1969 along with STB-2 in the STT program. Due to issues with cost effectiveness these two prototypes were not considered for the replacement of the Type 61. In a bid to reduce costs STB-3, STB-4, STB-5 and STB-6 were produced between April 1970 to December 1971. The final judgement for the STT program was held in November 1973 which lead the line to be completed in 1974. And, production started the following year in 1975 for the [[Type 74]].
  
 
== Media ==
 
== Media ==
−
''An excellent addition to the article will be video guides, as well as screenshots from the game and photos.''
+
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
  
−
== Read also ==
+
;Skins
−
* [http://warthunder.com/en/news/4459-profile-stb-1-steel-ninja-en/ [Profile<nowiki>]</nowiki> STB-1: Steel Ninja]
 
  
−
== Sources ==
+
* [https://live.warthunder.com/feed/camouflages/?vehicle=jp_st_b1 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
−
''Paste links to sources and external resources, such as:''
+
 
 +
;Videos
 +
{{Youtube-gallery|GgC8UNa8dok|'''Leopard I vs STB-1''' - ''War Thunder Official Channel''|p6cWlyUnJQA|'''Top 7 off-road beasts''' discusses the {{PAGENAME}} at 2:46 - ''War Thunder Official Channel''|PosWOnOGkSo|'''Best experimental vehicles''' discusses the {{PAGENAME}} at 6:11 - ''War Thunder Official Channel''}}
 +
 
 +
== See also ==
 +
<!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
 +
* ''reference to the series of the vehicles;''
 +
* ''links to approximate analogues of other nations and research trees.'' -->
 +
 
 +
;Related Development
 +
 
 +
* [[Type 74 (Family)]]
 +
** [[Type 74 (C)]] - <small>(Early Production version)</small>
 +
** [[Type 74 (E)]] - <small>(Variant with improved FCS & thermal sleeve)</small>
 +
** [[Type 74 (F)]] - <small>(Variant with mounting plates for a Type 92 mine-roller)</small>
 +
** [[Type 74 (G)]] - <small>(Improved ({{Annotation|改|Kai}}) variant with thermal and armour skirts)</small>
 +
** [[Type 87]] - <small>(SPAAG built on a modified Type 74 Hull)</small>
 +
 
 +
;Other vehicles of similar configuration and role
 +
{{columns|2|
 +
* [[File:FRG flag.png|30px|link=]] [[Leopard 1 (Family)]]
 +
* [[File:Italy flag.png|30px|link=]] [[OF-40 (Family)]]
 +
* [[File:Britain flag.png|30px|link=]] [[Vickers MBT (Family)|Vickers MBT Mk.1 - 3]]
 +
* [[File:France flag.png|30px|link=]] [[AMX-30 (Family)]]
 +
* [[File:USA flag.png|30px|link=]] [[M60 (Family)]]
 +
* [[File:FRG flag.png|30px|link=]] [[File:Argentina flag.png|30px|link=]] [[TAM (Family)]]
 +
* [[File:USA flag.png|30px|link=]] [[File:Italy flag.png|30px|link=]] [[M47 (105/55)]]
 +
* [[File:USA flag.png|30px|link=]] [[File:FRG flag.png|30px|link=]] [[M48A2 G A2]]
 +
* [[File:USSR flag.png|30px|link=]] [[T-54/55 (Family)]]
 +
}}
 +
 
 +
== External links ==
 +
<!-- ''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
−
* ''other literature.''
+
* ''other literature.'' -->
 +
 
 +
* [[wt:en/news/4459-profile-stb-1-steel-ninja-en/|[Profile] STB-1: Steel Ninja]]
 +
 
 +
{{Japan medium tanks}}

Latest revision as of 19:27, 27 June 2024

Rank VI | Premium | Golden Eagles
Chinese A-5C Pack
STB-2
jp_st_b1.png
GarageImage STB-2.jpg
ArtImage STB-2.jpg
STB-2
Japan flag.png Japan
V Rank
Battle rating:
AB RB SB
8.3 8.3 8.3
Class:
Research:105 000 Specs-Card-Exp.png
Purchase:300 000 Specs-Card-Lion.png
Show in game

Description

The STB-2 is the prototype of the Type 74, which was developed shortly after the introduction of the Type 61. Due to Japan's late entry into post-war tank development, they were behind by one tank generation and had to compare their Type 61s to more advanced tanks such as the T-62s, M60s and Leopard 1s. To keep up with these advancements, Japan sought to upgrade their tanks with the primary goal of incorporating the new standard L7 rifled cannon.

It was introduced in Update 1.65 "Way of the Samurai" along with the initial Japanese Ground Forces tree. Although the STB-2 has considerably more armour than its counterparts, such as the Leopard 1 and early AMX-30s, and has comparable mobility, it is not recommended for use as a front-line tank. Instead, it is best to employ a cautious hit-and-run tactic similar to that used with Leopards. Proper use of the tank's hydropneumatic suspension can improve its depression and, in some cases, aid in survivability. Additionally, the STB-2 is equipped with a laser rangefinder, giving it superior long-range capabilities over other tanks of its rank. This allows it to be highly accurate with low-velocity HESH or quickly acquire target range with APDS.

General info

Survivability and armour

Smoke grenades
Creation of a smoke screen in front of the vehicle
Armourfront / side / back
Hull80 / 40 / 25
Turret100 / 75 / 40
Crew4 people
Visibility96 %
Armour Front Sides Rear Roof
Hull 40-80 mm (64-73°) Front glacis
100 (26°), 80 mm (58-66°)Lower glacis 		35-40 mm (44°) Top
40 mm (0-55°) Bottom 		25 mm (1-46°) 20 mm
Turret 132 mm (12-66°) Turret front
100-200 mm (1-66°) Gun mantlet 		132 mm (1-54°)
75 mm (26-61°) Rear 		40 mm (1-64°)
40 mm (36-82°) Turret underside		 67 mm Front
20 mm Rear
Cupola 30 mm 30 mm 30 mm 30 mm

Notes:

  • Suspension wheels and tracks are 20 mm thick.
  • Driver's vision port on the front glacis are only 50 mm thick.
  • Hull roof is rated to be 54 mm effective against HE.

Mobility

 
Controlled suspension
It is possible to adjust the ground clearance or more complex suspension positions
Speedforward / back
AB59 / 9 km/h
RB and SB54 / 8 km/h
Number of gears6 forward
1 back
Weight37.8 t
Engine power
AB1 660 hp
RB and SB870 hp
Power-to-weight ratio
AB43.9 hp/t
RB and SB23.0 hp/t
Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 59 9 37.8 1,348 1,660 35.66 43.92
Realistic 54 8 769 870 20.34 23.02

Modifications and economy

Repair costBasic → Reference
AB4 092 → 5 646 Sl icon.png
RB4 517 → 6 233 Sl icon.png
SB6 184 → 8 533 Sl icon.png
Total cost of modifications87 800 Rp icon.png
147 200 Sl icon.png
Talisman cost2 100 Ge icon.png
Crew training86 000 Sl icon.png
Experts300 000 Sl icon.png
Aces1 200 Ge icon.png
Research Aces720 000 Rp icon.png
Reward for battleAB / RB / SB
130 / 190 / 230 % Sl icon.png
196 / 196 / 196 % Rp icon.png
Modifications
Mobility Protection Firepower
Mods new tank traks.png
Tracks
Research:
4 600 Rp icon.png
Cost:
7 400 Sl icon.png
185 Ge icon.png
Mods new tank suspension.png
Suspension
Research:
5 100 Rp icon.png
Cost:
8 200 Sl icon.png
210 Ge icon.png
Mods new tank break.png
Brake System
Research:
5 100 Rp icon.png
Cost:
8 200 Sl icon.png
210 Ge icon.png
Mods new tank filter.png
Filters
Research:
5 700 Rp icon.png
Cost:
9 200 Sl icon.png
230 Ge icon.png
Mods new tank transmission.png
Transmission
Research:
7 400 Rp icon.png
Cost:
12 000 Sl icon.png
300 Ge icon.png
Mods new tank engine.png
Engine
Research:
7 400 Rp icon.png
Cost:
12 000 Sl icon.png
300 Ge icon.png
Mods tank tool kit.png
Improved Parts
Research:
3 000 Rp icon.png
Cost:
7 400 Sl icon.png
185 Ge icon.png
Mods extinguisher.png
Improved FPE
Research:
3 300 Rp icon.png
Cost:
8 200 Sl icon.png
210 Ge icon.png
Mods tank reinforcement jp.png
Crew Replenishment
Research:
5 700 Rp icon.png
Cost:
9 200 Sl icon.png
230 Ge icon.png
Mods new tank horizontal aiming.png
Horizontal Drive
Research:
4 600 Rp icon.png
Cost:
7 400 Sl icon.png
185 Ge icon.png
Mods tank ammo.png
105mm_us_M416_Smoke_ammo_pack
Research:
4 600 Rp icon.png
Cost:
7 400 Sl icon.png
185 Ge icon.png
Mods tank cannon.png
Adjustment of Fire
Research:
5 100 Rp icon.png
Cost:
8 200 Sl icon.png
210 Ge icon.png
Mods new tank vertical aiming.png
Elevation Mechanism
Research:
5 700 Rp icon.png
Cost:
9 200 Sl icon.png
230 Ge icon.png
Mods smoke screen.png
Smoke grenade
Research:
5 700 Rp icon.png
Cost:
9 200 Sl icon.png
230 Ge icon.png
Mods art support.png
Artillery Support
Research:
7 400 Rp icon.png
Cost:
12 000 Sl icon.png
300 Ge icon.png
Mods tank laser rangefinder.png
Laser rangefinder
Research:
7 400 Rp icon.png
Cost:
12 000 Sl icon.png
300 Ge icon.png

Armaments

Laser rangefinder
Reduces the error and increases the maximum measurable distance of the rangefinder

Main armament

105 mm L7A3 cannon
Two-plane stabilizer
Reduces the swing of the gun in two planes while moving
Ammunition50 rounds
First-order16 rounds
Reloadbasic crew → aces
8.7 → 6.7 s
Vertical guidance-6° / 9°
Main article: L7A3 (105 mm)
105 mm L7A3 Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Stock Full Expert Aced
Arcade 50 -6°/+9° ±180° Two-plane 22.8 31.6 38.4 42.5 45.2 8.71 7.70 7.10 6.70
Realistic 14.3 16.8 20.4 22.6 24.0

Ammunition

Penetration statistics
Ammunition Type of
warhead 		Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
M392A2 APDS 350 347 333 317 302 287
Type 75 HESH 127 127 127 127 127 127
Shell details
Ammunition Type of
warhead 		Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(m) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (kg) 		Ricochet
0% 50% 100%
M392A2 APDS 1,478 4 - - - 75° 78° 80°
Type 75 HESH 760 10.8 0.1 4 3.89 73° 77° 80°
Smoke shell characteristics
Ammunition Velocity
(m/s) 		Projectile
mass (kg) 		Screen radius
(m) 		Screen deploy
time (s) 		Screen hold
time (s) 		Explosive mass
(TNT equivalent) (g)
M416 732 11.6 16 5 25 50

Ammo racks

Ammo racks of the STB-2
Full
ammo 		1st
rack empty 		2nd
rack empty 		3rd
rack empty 		4th
rack empty 		Visual
discrepancy
50 44 (+6) 16 (+34) 10 (+40) 1 (+49) No

Notes:

  • Hull floor empty: 16 (+34) shells
  • Shells are modeled individually and disappear after having been shot or loaded.
  • Racks 3 and 4 are first stage ammo racks. They total 15 shells and get filled first when loading up the tank.
  • These racks are also emptied early: the rack depletion order at full capacity is: 3 - 4 - 1 - 2.
  • Simply not firing when the gun is loaded will move ammunition from rack 1 then 2 into ready rack 4 then 3. Firing will interrupt the restocking of the ready racks.

Machine guns

12.7 mm M2HB machine gun
Ammunition800 rounds
Belt capacity200 rounds
Reloadbasic crew → aces
10.4 → 8.0 s
Fire rate575 shots/min
Vertical guidance-10° / 40°
7.62 mm M1919A4 machine gun (coaxial)
Ammunition4 500 rounds
Belt capacity250 rounds
Reloadbasic crew → aces
10.4 → 8.0 s
Fire rate500 shots/min
Main articles: M2HB (12.7 mm), M1919A4 (7.62 mm)
12.7 mm M2HB
Mount Capacity (Belt) Fire rate Vertical Horizontal
Pintle 800 (200) 577 -10°/+40° ±180°
7.62 mm M1919A4
Mount Capacity (Belt) Fire rate Vertical Horizontal
Coaxial 4,500 (250) 500 - -

Usage in battles

The STB-2 can be compared to the Leopard I or even a stock Leopard A1A1, but has its own capabilities in its own right. The STB-2 allows for both a more held down playstyle or aggressive playstyle versus the Leopard I due to its hydropneumatic suspension and two-plane stabilizer. Together with the power of the engine outfitted on the STB-2, allows it to speedily move to a nice sniper spot or hull-down position and fire at targets before they realize a tank could be there.

The STB-2 possesses a pretty nice angled upper front plate, but do keep in mind that the STB-2 wasn't designed to take a punch, only to deal a punch, so even with the good angle you shouldn't rely too heavily on it, as shells can penetrate it and won't always bounce off. Do keep this fully in mind especially when taking more shells with the vehicle, as the fuel tank next to the driver will be filled with extra shells, which can blow up the whole tank if a shell does eventually penetrate.

With the addition of a 12.7 mm machine gun, the STB-2 can make short work of ZSU's or light tanks alike if the heat of the battle doesn't allow for the main gun or in-case of more important targets requiring the main gun's firepower.

With only 2 shells to choose from being APDS & HESH, APDS can be used for long-distance engagements and HESH can deal with light to medium armoured vehicles with overpressure damage, this can be done at a long range once the laser rangefinder has been unlocked as well. But due to the low velocity of the HESH round it has to be fired at a stationary target at long range to effectively hit.

Pros and cons

Pros:

  • 105 mm L7 cannon found on other NATO tanks
  • 12.7 mm Browning M2HB machine gun
  • Two-plane stabilizer that allows it to fire on the move
  • Highly mobile
  • Armour may bounce APHE shells
  • Low profile
  • Utilization of hydropneumatic suspension allows for various offensive and defensive options
  • Laser rangefinder

Cons:

  • Some areas are lightly armoured, vulnerable to high penetrating SPAAs
  • Poor gun elevation angle

History

The prototype for the Type 74. Known in Japanese as 74式戦車の試作車STB-1 (ななよんしきせんしゃのしさくしゃSTB-1). Created in September 1969 along with STB-2 in the STT program. Due to issues with cost effectiveness these two prototypes were not considered for the replacement of the Type 61. In a bid to reduce costs STB-3, STB-4, STB-5 and STB-6 were produced between April 1970 to December 1971. The final judgement for the STT program was held in November 1973 which lead the line to be completed in 1974. And, production started the following year in 1975 for the Type 74.

Media

Skins
Videos
Leopard I vs STB-1 - War Thunder Official Channel
Top 7 off-road beasts discusses the STB-2 at 2:46 - War Thunder Official Channel
Best experimental vehicles discusses the STB-2 at 6:11 - War Thunder Official Channel

See also

Related Development
Other vehicles of similar configuration and role

External links


Japan medium tanks
Type 97  Chi-Ha · Chi-Ha Kai · Chi-Ha Kai TD · Chi-Ha Short Gun
Type 1  Chi-He · Chi-He (5th Regiment) · Ho-I
Type 3  Chi-Nu · Chi-Nu II
Type 4  Chi-To · Chi-To Late
Type 5  Chi-Ri II
Type 61 MBT  ST-A1* · ST-A2* · ST-A3* · Type 61
Type 74 MBT  ST-B2* · Type 74 (C) · Type 74 (E) · Type 74 (F) · Type 74 (G)
Type 90 MBT  Type 90 · Type 90 (B) · Type 90 (B) "Fuji"
Type 10 MBT  TKX (P)* · TKX* · Type 10
Other  Ka-Chi
USA  ▅M4A3 (76) W · ▅M47
  *Prototype

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