Difference between pages "F-89D" and "ST-A2"

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{{Specs-Card|code=f-89d}}
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{{Specs-Card|code=jp_st_a2}}
 
{{About
 
{{About
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| about = American jet fighter '''{{PAGENAME}}'''
+
| about = Japanese medium tank '''{{PAGENAME}}'''
−
| usage = other version
+
| usage = other variants
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| link = F-89B
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| link = Type 61 (Family)
 
}}
 
}}
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== Description ==
 
== Description ==
−
<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft 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.'' -->
+
<!-- ''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.'' -->
 
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
 
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
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{{Break}}
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{{break}}
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The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} American jet fighter {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]].
+
The '''{{Specs|name}}''' is a Rank {{Specs|rank}} Japanese medium tank {{Battle-rating}}. It was introduced along with the initial Japanese Ground Forces tree in [[Update 1.65 "Way of the Samurai"]].
 +
 
 +
It is a sidegrade to [[ST-A1]], which takes sniping duty as its main work while neglecting most of the other roles. One can literally treat them as the same tank, but they have some minor quality of life differences, which will be mentioned here.
 +
 
 +
== General info ==
 +
=== 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 helpful for survival in combat?
 +
 
 +
If necessary use a visual template to indicate the most secure and weak zones of the armour.-->
 +
 
 +
Armour on ST-A2 is about the same as ST-A1, but there are some differences to its weaknesses.
 +
 
 +
For instance, the hull is now raised to engine deck level and slope goes all the way up the turret, resulting in turret being well above engine deck. The frontal armour is even more angled now, with effective thickness of about 90-100 mm, but it now also connected to engine deck, and in connection spot it's about 80 mm effective thickness like before. Most of tanks can still penetrate entire armour with no issues, so overall on tank's own BR it changes only rear gun depression and ability of certain tanks to just explode the tank with HE when it's hulldown.
 +
 
 +
Since hull is raised higher, there is less chances that enemy APHE will hit driver optics on accident or will be stopped by transmission and won't destroy the tank. Also, '''gunner's head''' is now above gun breech, so random shrapnel has a chance of hitting him, if enemy shell explodes above it, resulting in complete crew knockout, unlike with ST-A1.
 +
 
 +
For the turret, the commander cupolas was raised a bit and the pintle-mounted machine gun was removed. Overall it makes it harder to destroy tank with HE, but nothing more. However, the turret neck is no longer a weak spot for SPAA to exploit, but tank can still be destroyed by SPAA firing at MG port because their shells still cause spalling or explode and hit ammo rack despite it being rotated away from the weakspot. Still, it will definitely take them longer to deal with the tank that way.
 +
 
 +
Ammo rack in back of the turret is now facing turret and is much narrower a target, so the gun breech shields it entirely. Because of that, as long as the ST-A2 fires off first two rounds in first-stage rack, the chances of tank exploding due to ammo rack being hit through the turret is reduced. It came at a price, though, as it is now even easier to shoot the tank from the side or back. The block outside of turret's back isn't even modeled, so if HESH hits back of the turret, it's going to explode the entire tank.
  
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The {{PAGENAME}} Scorpion was designed and built to be an all-weather interceptor intended to neutralize any potential invading Soviet bomber force. The USAAF was intent of replacing the P-61 Black Widow with another night fighter, one specifically which would fly faster (minimum 530 mph/850 kph) almost assuredly requiring the usage of jets, six sixty-calibre machine guns or 20 mm autocannons and armed with internally stored aerial rockets. To round out the aircraft for ground attack if needed, it would also need to accommodate 1,000 lb bombs and eight larger rocket types externally. Initial wind tunnel testing of the fighter determined that the proposed swept-wings were insufficient at slow speeds and were changed out with straight wings. Though causing a loss of high-end performance, increased stability at low speeds was necessary.
+
=== Mobility ===
 +
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
  
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Other changes to the horizontal stabilizer also increased the effectiveness of the elevators and rudder. Concerns about the fuel tanks situated right over the engines were nullified when it was determined that efforts made by Northrop to protect them were considered sufficient, anything else would have required a complete redesign of the aircraft.
+
{{tankMobility|abMinHp= 775|rbMinHp= 442}}
  
−
Other key features of the Scorpion was the usage of decelerons or clamshell-style split ailerons which work as a standard aileron, however, can open up as a dive brake or be utilized as a takeoff/landing flap. Last-minute changes by the Air Force required upgrading the engines and outfitting an afterburner, adding a radar system, fire control system, permanent wingtip fuel tanks, reconfigured nose guns and easy access to lower the entire engine to make for easier maintenance.
+
The mobility of the {{PAGENAME}} is the same as predecessor, as well as their effective off-road and top speed - about (AB/RB) 40/33 km/h forward and -18/-15 km/h backwards off-road, with top speed being 50/45 forward and -20/-17 backwards .
  
−
Having determined that the six autocannons originally specced with the F-89A and B models would be less effective against bomber formations as it requires relative precision to damage or destroy the enemy bombers. On the other hand, a new requirement for the F-89 to house 104 Folding-Fin Mighty Mouse Aerial Rockets and underwing HVAR rockets would allow the F-89 (now designated as the {{PAGENAME}}) the ability to launch salvos of rockets and quickly targeting another bomber to launch more and allow for the potential of one or more rockets in the salvo to accomplish the required amount of damage necessary to destroy them or cause them to turn around and retreat. Though unguided and not terribly accurate, a salvo of rockets typically allowed for one or two rockets to explode near enough to be a successful hit.
+
== Armaments ==
 +
=== 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 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|M3A1 (90 mm)}}
  
−
To aid in the aerodynamics of the rocket launchers, they were outfitted around the wing-tip fuel tanks. Engineered so that the launching rockets would not damage the fuel tanks, the underwing still allowed for the mounting of the larger HVAR rockets to be used against bombers, but also along with the FFAR rockets be used against ground targets. The {{PAGENAME}} though best used with higher speeds, can be used as a dive-bomber of sorts, when going against ground targets, the fighter should throttle back, extend dive brakes, line up the shot and fire the rockets. Immediately when finished firing, retract the brakes and full-throttle the engines to gain speed and distance from any enemy fighters which may have targeted you.
+
The gun and the ammunition themselves are the same as the ones on ST-A1.
  
−
== General info ==
+
As with ST-A1, one must unlock APHE as the very first module and then try to get aim adjustment as soon as possible, leveling it same way as the predecessor, as otherwise it is very hard to defeat opposing tanks and earn research points on this tank.
−
=== Flight performance ===
 
−
<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
 
−
The {{PAGENAME}} has probably the best acceleration for its BR, but mediocre turn rate and rolling. It locks up around 900 km/h. The plane can reach rip speeds in level flight and even shallow climbs.
 
  
−
Considering its mediocre turn rate & rolling speed, it's best used as a boom & zoomer.
+
Due to turret being elevated above engine deck, the gun can now depress enough to fire at tanks behind it, no matter how low their profile is, as long as they stay on even ground.
  
−
{| class="wikitable" style="text-align:center" width="70%"
+
{| class="wikitable" style="text-align:center"
−
! rowspan="2" | Characteristics
+
|-
−
! colspan="2" | Max Speed<br>(km/h at 3,200 m)
+
! colspan="6" | [[M3A1 (90 mm)|90 mm M3A1]]
−
! rowspan="2" | Max altitude<br>(metres)
 
−
! colspan="2" | Turn time<br>(seconds)
 
−
! colspan="2" | Rate of climb<br>(metres/second)
 
−
! rowspan="2" | Take-off run<br>(metres)
 
 
|-
 
|-
−
! AB !! RB !! AB !! RB !! AB !! RB
+
! colspan="3" rowspan="1" style="width:5em" |Capacity
 +
! rowspan="1" | Vertical <br> guidance
 +
! rowspan="1" | Horizontal <br> guidance
 +
! rowspan="1" | Stabilizer
 
|-
 
|-
−
! Stock
+
| colspan="3" | 40 || -10°/+13° || ±180° || N/A
−
| 1,009 || 1,002 || rowspan="2" | {{Specs|ceiling}} || 33.3 || 34.8 || 31.1 || 26.7 || rowspan="2" | 1,036
 
 
|-
 
|-
−
! Upgraded
+
! colspan="6" | Turret rotation speed (°/s)
−
| 1,034 || 1,022 || 32.7 || 33.0 || 47.5 || 38.9
 
 
|-
 
|-
−
|}
+
! style="width:4em" |Mode
−
 
+
! style="width:4em" |Stock
−
==== Details ====
+
! style="width:4em" |Upgraded
−
{| class="wikitable" style="text-align:center" width="50%"
+
! style="width:4em" |Prior + Full crew
 +
! style="width:4em" |Prior + Expert qualif.
 +
! style="width:4em" |Prior + Ace qualif.
 +
|-
 +
| ''Arcade'' || 22.85 || 31.62 || 38.40 || 42.47 || 45.18
 +
|-
 +
| ''Realistic'' || 14.28 || 16.8 || 20.40 || 22.56 || 24.0
 
|-
 
|-
−
! colspan="6" | Features
+
! colspan="4" | Reloading rate (seconds)
 
|-
 
|-
−
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute
+
! 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.
 
|-
 
|-
−
| ✓ || ✓ || ✓ || ✓ || X || X    <!-- ✓ -->
+
| 9.75 || 8.63 || 7.95 || 7.5
 
|-
 
|-
 
|}
 
|}
  
−
{| class="wikitable" style="text-align:center" width="50%"
+
 
 +
===== Ammunition =====
 +
{| class="wikitable sortable" style="text-align:center" width="100%"
 +
! colspan="8" | Penetration statistics
 +
|-
 +
! rowspan="2" data-sort-type="text" | Ammunition
 +
! rowspan="2" class="unsortable" | Type of <br /> warhead
 +
! colspan="6" | '''Penetration''' '''''in mm''''' '''@ 0°'''
 +
|-
 +
! 10m
 +
! 100m
 +
! 500m
 +
! 1000m
 +
! 1500m
 +
! 2000m
 +
|-
 +
| M318 shot || AP ||174||171||159||149||133||122
 
|-
 
|-
−
! colspan="7" | Limits
+
| M71 shell || HE || 13 || 13 || 13 || 13 || 13 || 13
 +
|-
 +
| M82 shot || APCBC ||182||180|| 168 || 153 || 140 || 128
 
|-
 
|-
−
! rowspan="2" | Wings (km/h)
+
| M304 shot || APCR || 264 || 260 || 245 || 226 || 210 || 191
−
! rowspan="2" | Gear (km/h)
 
−
! colspan="3" | Flaps (km/h)
 
−
! colspan="2" | Max Static G
 
 
|-
 
|-
−
! Combat !! Take-off !! Landing !! + !! -
+
| M332 shot || APCR || 271 || 270 || 245 || 217 || 192 || 170
 
|-
 
|-
−
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || 554 || 448 || 379 || ~7 || ~3
+
| M348 shell || HEATFS || 305 || 305 || 305 || 305 || 305 || 305
 
|-
 
|-
 
|}
 
|}
−
 
+
{| class="wikitable sortable" style="text-align:center" width="100%"
−
{| class="wikitable" style="text-align:center"
+
! colspan="11" | Shell details
 
|-
 
|-
−
! colspan="4" | Optimal velocities (km/h)
+
! 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:''
 
|-
 
|-
−
! Ailerons !! Rudder !! Elevators !! Radiator
+
! 0%
 +
! 50%
 +
! 100%
 
|-
 
|-
−
| < 760 || < 800 || < 700 || N/A
+
| M318 shot || AP || 853 || 11 || N/A || N/A || N/A || +4° ||47°|| 60° || 65°
 
|-
 
|-
−
|}
+
| M71 shell || HE || 823 || 11 || 0.1 || 0.5 || 925 || +0° || 79° || 80° || 81°
−
 
+
|-
−
==== Engine performance ====
+
| M82 shot || APCBC || 853 || 11 || 1.2 || 14 || 137.2 || +4° || 48° || 63° || 71°
−
{| class="wikitable" style="text-align:center"
 
 
|-
 
|-
−
! colspan="3" | Engine
+
| M304 shot || APCR || 1021 || 7.6 || N/A || N/A || N/A || +1.5° || 66° || 70° || 72°
−
! colspan="6" | Aircraft mass
 
 
|-
 
|-
−
! colspan="2" | Engine name || Number
+
| M332 shot || APCR || 1178 || 5.6 || N/A || N/A || N/A || +1.5° || 66° || 70° || 72°
−
! colspan="3" | Empty mass || colspan="3" | Wing loading (full fuel)
 
 
|-
 
|-
−
| colspan="2" | Allison J35-A-35 || 2
+
| M348 shell || HEATFS || 853 || 6.5 || 0.0 || 0.1 || 926.17 || +0° || 65° || 72° || 75°
−
| colspan="3" | 12,509 kg || colspan="3" | 318 kg/m<sup>2</sup>
 
 
|-
 
|-
−
! colspan="3" | Engine characteristics
+
|}
−
! colspan="5" | Mass with fuel (no weapons load) || rowspan="2" | Max Takeoff<br />Weight
+
{| class="wikitable sortable" style="text-align:center"
 +
! colspan="7" | Smoke characteristic
 
|-
 
|-
−
! Weight (each) || colspan="2" | Type
+
! Ammunition
−
! 21m fuel || 30m fuel || 45m fuel || 60m fuel || 70m fuel
+
! Velocity <br /> in m/s
 +
! Projectile<br />Mass in kg
 +
! ''Screen radius <br /> in m''
 +
! ''Screen time <br /> in s''
 +
! ''Screen hold time <br /> in s:''
 +
! ''Explosive Mass in g<br /> (TNT equivalent):''
 
|-
 
|-
−
| 1,300 kg || colspan="2" | Afterburning axial-flow turbojet
+
| M313 || 821 || 11 || 13 || 5 || 20 || 50
−
| 14,158 kg || 14,850 kg || 16,002 kg || 17,162 kg || 17,923 kg || 20,301 kg
 
 
|-
 
|-
−
! colspan="3" | {{Annotation|Maximum engine thrust @ 0 m (RB / SB)|The maximum thrust produced by each engine, while mounted in the aircraft. NOTE: Thrust varies significantly depending on speed & altitude.}}
+
|}
−
! colspan="6" | Thrust to weight ratio @ 0 m (WEP)
+
 
 +
=====Optics=====
 +
<!--
 +
''Explain how the optic's status can affect the tank's gameplay in any unique or meaningful way. A comparison to rival tanks of the rank is welcome.''
 +
 
 +
''If you are having problems with it, refer to the [[Optics|optics gallery]] page for examples.''-->
 +
 
 +
{| class="wikitable" style="text-align:center" width="50%"
 +
! colspan="3" | {{PAGENAME}} [[Optics]]
 
|-
 
|-
−
! Condition || 100% || WEP
+
! Which ones
−
! 21m fuel || 30m fuel || 45m fuel || 60m fuel || 70m fuel || MTOW
+
! Default magnification
 +
! Maximum magnification
 
|-
 
|-
−
| ''Stationary'' || 2,303 kgf || 3,051 kgf
+
! Main Gun optics
−
| 0.43 || 0.41 || 0.38 || 0.36 || 0.34 || 0.30
+
| x8 || x16 <!--Sometimes the actual value may not be known and here it should be referenced if the optic values are an estimate such as with an "X8.3 (estimated)" notation or something else that way the user will then be able to look to the comparable optics section and see a referenced optic which will have actual in-game data to back up the claim.-->
 
|-
 
|-
−
| ''Optimal'' || 2,350 kgf<br />(100 km/h) || 3,237 kgf<br />(800 km/h)
+
! Comparable optics
−
| 0.46 || 0.44 || 0.40 || 0.38 || 0.36 || 0.32
+
| colspan="2;" style="text-align:center;" | [[JPz 4-5]]
 
|-
 
|-
 
|}
 
|}
  
−
=== Survivability and armour ===
+
ST-A2 optics are identical to ST-A1. As usual, the user should exploit the superior magnification to target out enemy weaknesses or to snipe unsuspecting opponents from afar.
−
<!-- ''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.'' -->
+
 
−
The {{PAGENAME}}is quite a sturdy machine and won't crash from regular hits, both the pilots in the cockpit have control over the plane, so if one is knocked out, you can still fly him safe home. Not only are there two pilots in this machine, but also two engines, which if one of them is shot out, the other can still thrust you back to safety for repairs.
+
=== 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.-->
 +
{{main|M1919A4 (7.62 mm)}}
 +
 
 +
The 12.7 mm M2HB machine gun was removed, so ST-A2 only has [[M1919A4 (7.62 mm)|7.62 mm M1919A4]] in its turret. It still can be used to damage open-top SPG, but fighting light tanks with it is not possible. Planes are also harder to engage with it.  
  
−
Losing a wing tip isn't a problem as you can still fly with it, with minor compensation for aerodynamics. The thing that will mostly bring you down if you get caught in a firefight will be loss of control surfaces. So as long as you still are able to control your plane, you're good to go.
+
On other hand, its trajectory is similiar to APHE shell up to 760 m, so you can use it to check your aim in RB, if necessary, which further confirms sniper specialization of ST-A2.
  
−
== Armaments ==
+
{| class="wikitable"
−
=== Suspended armament ===
+
! colspan="7" |[[M1919A4 (7.62 mm)|7.62 mm M1919A4]]
−
<!-- ''Describe the aircraft's suspended armament: additional cannons under the wings, bombs, rockets and torpedoes. This section is especially important for bombers and attackers. If there is no suspended weaponry remove this subsection.'' -->
+
|-
−
{{main|FFAR Mighty Mouse|HVAR}}
+
! colspan="7" |''Coaxial mount''
 +
|-
 +
! colspan="4" rowspan="1" |Capacity (Belt capacity)
 +
! rowspan="1" |Fire rate
  
−
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
+
(shots/minute)
−
* 104 x FFAR Mighty Mouse rockets
+
! rowspan="1" |Vertical
−
* 16 x HVAR rockets + 104 x FFAR Mighty Mouse rockets
 
−
* 104 x FFAR Mighty Mouse rockets M439
 
  
−
The {{PAGENAME}} is unique in its weapons loadout and stands out in a class of its own with the F-86D Sabre Dog in that the only weapons found on the fighter/interceptor are unguided aerial rockets (both FFAR and HVAR). It is not the intention of this aircraft to dogfight other fighters, instead its purpose is to was to eliminate Soviet bombers. The {{PAGENAME}} when given the clearance, would zoom-climb to bomber altitude with its afterburners engaged and then would utilise its Folding-Fin Aerial Rockets (Mighty Mouse) by shooting salvos (with 104 total rockets on board, a few could be fired off or a large amount) at inbound bomber aircraft. The rockets would spread out similar to how a shotgun works and the result should be enough rockets make contact or explode near the bombers to take them out. While these unguided rockets may not be accurate, with the amount on-board, many can be fired to increase the interceptor's chances of hitting. The HVAR rockets are larger and only a few are mounted under the wings. These rockets should be reserved for the larger and slower bombers, notwithstanding there are less to work with which decreases the chances to hit compared to the FFARs.
+
guidance
 +
! rowspan="1" |Horizontal
  
−
While the {{PAGENAME}} was built and configured for aerial interception and destruction of aircraft, the rockets, both FFAR and HVAR can be utilised on ground targets too. The {{PAGENAME}} is outfitted with decelerons which double as speed brakes which open up in a clam-shell style. The Scorpion can dive on ground targets, engage the dive brakes, line up the target and then unleash either the FFAR or HVAR rockets depending on the target types. With the 104 FFAR Mighty Mouse rockets, enemy vehicles which are clustered together are an excellent target to unleash salvos of rockets at. Another opportunity is during domination maps, the rockets come in very handy for taking out aircraft which are attempting to cap the airfield as the rocket spread does not need to be super accurate to still achieve a critical hit or destruction of the aircraft capping the airfield.
+
guidance
 +
|-
 +
| colspan="4" |4,500 (250)
 +
|500
 +
|N/A
 +
|N/A
 +
|}
  
 
== Usage in battles ==
 
== Usage in battles ==
−
<!-- ''Describe the tactics of playing in the aircraft, the features of using aircraft in a 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. Examine 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).-->
−
There's two ways to play the {{PAGENAME}}, either as a ground pounder or as fighter with irregular ammunition, being proxy fuse FFAR's
+
 
 +
As the ST-A is Japan's first tank project for a new era of tank development, it shows the same gameplay issues as the [[Chi-Ha]]. The weak armor, the slow to mediocre turret rotation speed, quite a long hull and high drop-rate of shells.
  
−
==== Ground pounder ====
+
But its not just all negatives, the mobility is good for what it is, has adequate gun depression and the ST-A even comes with HEAT like the [[Chi-Ha]], this time in the form of M348 HEAT-FS researchable as tier IV modification.
−
When taking the {{PAGENAME}} as a ground pounder, the preferable loadout would be taking all the rockets possible, 104 FFAR's + 16 HVAR's. Pay close attention as the HVAR's fire first before making use of the HVAR's. Exploit the fact that the {{PAGENAME}} is among the fastest accelerating for its battle rating and when arriving near targets will be quite relaxing as your enemies will still be on their way towards you.
 
  
−
Be warned considering the fact that the FFAR pods are quite far away from each other and targeting isn't as easy as using the HVAR's, firing in salvo's is advised, and having 104 rockets will be plenty enough before you have to re-arm. Hit as much as you can and run away as soon as enemies are coming for your cannonless machine.
+
Other than the similarities to the [[Chi-Ha]], the ST-A2 has its own factors good and bad which should be kept in mind when playing. From the very good reverse speed, great zoom factor and many shell options, the ST-A2 also has an angled front plate unlike the [[ST-A1]], which does place the turret higher, allowing it to shoot over the engine, at the cost of having a higher profile. Also unlike the [[ST-A1]], the .50 has been removed from the ST-A2 which will make it harder to deal with lighter vehicles and planes.
 +
===Gameplay===
  
−
==== Fighter ====
+
The plan is simple and similar to the [[Chi-Ha]] & other early Japanese medium tanks, you want to stay either near or behind your allies and not rush forward, you can't take much damage, but you can deliver a punch. Pre-aim the turret and guide the enemy tanks into the sights as the rotation speed isn't of the fastest.  
−
The best way to achieve kills in the {{PAGENAME}} is by taking the proximity-fuse FFAR's and playing it by boom and zooming, making great use of the high acceleration and fast climb rate. The rockets are quite inaccurate because of the fact they're spread out so much, so shooting in salvo's is strongly advised. Extremely deadly in a head-on. Rockets work down to RNG, sometimes they can annihilate and other times you can get hit after hit.
 
  
−
=== Modules ===
+
The further you are from your enemy the better for the inadequate armor, The ST-A comes with an amazing zoom factor and allows for clear sniping, but do keep in mind the shell drop-off are rather high.
 +
 
 +
Before you have your hands on the HEAT-FS, the safest bet is to exploit the flanks of the enemy, especially when starting with only AP, frontal penetrations won't happen reliable with the tanks the ST-A faces, try aiming for ammo racks, put a solid round into cramped crew members while trying to get the M82 shot and back up into cover or behind corners as the crew reloads the shell.
 +
 
 +
After unlocking the M82 APHE, placing shots is less important, once it penetrates, it's most likely to blow up good. It will come at the cost of the extra penetration, but when aiming for the sides, extra penetration isn't required. It's still a good idea to bring some AP shells with the tank just in-case you have to fight in a frontal engagement and the APHE fails to penetrate.
 +
 
 +
With the HEAT-FS finally unlocked, you can fully make use of the punches you can deal and the zoom you have, help your allies out with the toughest of enemies and simply frontally penetrate them.
 +
===Modules===
 
{| class="wikitable"
 
{| class="wikitable"
−
! Tier
+
!Tier
−
! colspan="2" | Flight performance
+
! colspan="2" |Mobility
−
! Survivability
+
!Protection
−
! Weaponry
+
! colspan="3" |Firepower
 
|-
 
|-
−
| I
+
|I
−
| Fuselage repair
+
|Tracks||
−
|
+
|Parts
−
|
+
|M82 shot
 +
|Horizontal Drive
 
|
 
|
 
|-
 
|-
−
| II
+
|II
−
|
+
|Suspension||Brake System
−
| Compressor
+
|FPE
−
| Airframe
+
|M304 shot
 +
|Adjustment of Fire
 
|
 
|
 
|-
 
|-
−
| III
+
|III
−
| Wings repair
+
|Filters||
−
|
+
|Crew Replenishment
−
|
+
|M332 shot
 +
|Elevation Mechanism
 
|
 
|
 
|-
 
|-
−
| IV
+
|IV
−
|
+
|Transmission||Engine
−
| Engine
 
−
| Cover
 
 
|
 
|
 +
|M348 shell
 +
|Artillery Support
 +
|M313
 
|-
 
|-
 
|}
 
|}
−
 
−
* As a premium aircraft all modifications are unlocked on purchase of the vehicle.
 
−
 
 
=== 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".'' -->
+
<!--Summarize 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 - they can be substituted with softer forms such as "inadequate" and "effective".-->
  
 
'''Pros:'''
 
'''Pros:'''
−
* Fearsome rocket armament, both Mighty Mouse and HVARs
+
 
−
* Decent high-speed manoeuvrability
+
*Overall better sniper qualities than ST-A1 (but they only really matter in RB)
−
* Dual-engine, can fly with one (though, head back to base!)
+
*Can defend itself against other tanks in case of a rear flank, unlike ST-A1
−
* Targeting radar equipped
+
*Harder to hit ammo rack in turret from the front, and overall better protection against autocannons, HEAT and pure AP in turret
−
* Bomber interceptor or ground attacker role capable
+
*Harder to be destroyed by HE shot to the turret, can technically tank some attacker's plane assault with its front
−
* Armament will be able to easily destroy enemy planes in a head-on
+
*Harder to destroy by poorly aimed shot in down-tier
−
* Use of decelerons as ailerons, dive brakes (clamshell-type) or flaps
 
  
 
'''Cons:'''
 
'''Cons:'''
−
* No autocannon armament
+
 
−
* Rockets are inaccurate, odds increased when launched in salvos
+
*Worse against light tanks than predecessor due to lack of 12.7 mm MG
−
* Not very manoeuvrable at low speeds
+
*Still can be destroyed in one shot by nearly anything on battlefield via crew knockout, as long as they have APHE or HESH
−
* Large target wing-surface
+
*Raised turret still cannot use certain hull down spots, but raises tank's profile
−
* Heavy wing-tips, losing one throws the aircraft off balance
+
*Hull weak spot is even more relevant now
−
* Not as nimble as single-engine MiGs
 
  
 
== History ==
 
== History ==
−
<!-- ''Describe the history of the creation and combat usage of the aircraft 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).'' -->
+
''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 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></nowiki></code>, as well as adding them at the end of the article. This section may also include the vehicle's devblog entry (if applicable) and the ingame encyclopedia description (under <code><nowiki>=== Encyclopedia Info ===</nowiki></code>, also if applicable).''
−
[[File:F-89D_fulzy_nyan.jpg|450px|thumb|right|'''{{PAGENAME}}''' at cruising altitude.]]
 
−
Almost immediately after WWII, the Nothrop Corporation began developing an experimental jet fighter-interceptor to meet the new requirements for that class of aircraft. The American interceptor’s primary targets were supposed to be Soviet bombers, so the projected model’s flight characteristics and armament had to meet this objective. At first the two-seater twin-engine jet was developed to have a rather interesting four gun turret. This turret was to be mounted on the aircraft’s nose and could fire on targets either automatically or manually along a vertical plane either forward, up, down or, in some cases, backward. However, when the experimental model of the aircraft was ready, the turret still hadn’t undergone testing yet, so the military decided to install traditional static frontal guns on it, as well as HVARs on the wing pylons. It was with this loadout that the Scorpion F-89A and F-89B went into service. The armament was switched exclusively to rockets somewhat later. To make the change to rockets, the designers implemented an interesting solution: Mighty Mouse unguided rockets were installed on the front of the wing-mounted fuel tanks in such a way that the rocket and fuel sections of this part of the design were separated by a fireproof barrier. This also made it possible to install heavier, more destructive HVARs under the wing. The F-89D or “rocket” version of the Scorpion went on to become the most widespread version of the aircraft in the US air force – 682 of them were manufactured.
 
−
 
 
−
''- From [[wt:en/news/6371-development-f-89b-and-f-89d-scorpion-jet-bros-en|Devblog]]''
 
  
 
== 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.''
−
;Images
 
−
<gallery mode="packed">
 
−
File:F_89d_wallpaper001.jpg
 
−
File:F_89d_wallpaper002.jpg
 
−
File:F_89d_wallpaper003.jpg
 
−
File:F_89d_wallpaper004.jpg
 
−
File:F_89d_wallpaper005.jpg
 
−
</gallery>
 
  
 
== See also ==
 
== See also ==
−
<!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
+
''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 aircraft;''
 
−
* ''links to approximate analogues of other nations and research trees.'' -->
 
  
−
* [[F-89B]] - Cannon-armed variant of the jet.
+
* ''reference to the series of the vehicles;''
 +
* ''links to approximate analogues of other nations and research trees.''
  
 
== External links ==
 
== External links ==
−
<!-- ''Paste links to sources and external resources, such as:''
+
''Paste links to sources and external resources, such as:''
 +
 
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
−
* ''encyclopedia page on the aircraft;''
+
* ''encyclopedia page on the tank;''
−
* ''other literature.'' -->
+
* ''other literature.''
−
 
 
−
* [[wt:en/news/6371-development-f-89b-and-f-89d-scorpion-jet-bros-en|[Development<nowiki>]</nowiki> F-89B and F-89D Scorpion: Jet Bros]]
 
  
−
{{AirManufacturer Northrop}}
+
{{Japan medium tanks}}
−
{{USA jet aircraft}}
 
−
{{USA premium aircraft}}
 

Revision as of 00:15, 4 June 2020

Rank IV USSR | Premium | Golden Eagles
Tu-1 Pack
ST-A2
jp_st_a2.png
ST-A2
Japan flag.png Japan
IV Rank
Battle rating:
AB RB SB
6.3 6.3 6.3
Class:
Research:31 000 Specs-Card-Exp.png
Purchase:200 000 Specs-Card-Lion.png
Show in game
This page is about the Japanese medium tank ST-A2. For other variants, see Type 61 (Family).

Description

GarageImage ST-A2.jpg


The ST-A2 is a Rank IV Japanese medium tank with a battle rating of 6.3 (AB/RB/SB). It was introduced along with the initial Japanese Ground Forces tree in Update 1.65 "Way of the Samurai".

It is a sidegrade to ST-A1, which takes sniping duty as its main work while neglecting most of the other roles. One can literally treat them as the same tank, but they have some minor quality of life differences, which will be mentioned here.

General info

Survivability and armour

Armour on ST-A2 is about the same as ST-A1, but there are some differences to its weaknesses.

For instance, the hull is now raised to engine deck level and slope goes all the way up the turret, resulting in turret being well above engine deck. The frontal armour is even more angled now, with effective thickness of about 90-100 mm, but it now also connected to engine deck, and in connection spot it's about 80 mm effective thickness like before. Most of tanks can still penetrate entire armour with no issues, so overall on tank's own BR it changes only rear gun depression and ability of certain tanks to just explode the tank with HE when it's hulldown.

Since hull is raised higher, there is less chances that enemy APHE will hit driver optics on accident or will be stopped by transmission and won't destroy the tank. Also, gunner's head is now above gun breech, so random shrapnel has a chance of hitting him, if enemy shell explodes above it, resulting in complete crew knockout, unlike with ST-A1.

For the turret, the commander cupolas was raised a bit and the pintle-mounted machine gun was removed. Overall it makes it harder to destroy tank with HE, but nothing more. However, the turret neck is no longer a weak spot for SPAA to exploit, but tank can still be destroyed by SPAA firing at MG port because their shells still cause spalling or explode and hit ammo rack despite it being rotated away from the weakspot. Still, it will definitely take them longer to deal with the tank that way.

Ammo rack in back of the turret is now facing turret and is much narrower a target, so the gun breech shields it entirely. Because of that, as long as the ST-A2 fires off first two rounds in first-stage rack, the chances of tank exploding due to ammo rack being hit through the turret is reduced. It came at a price, though, as it is now even easier to shoot the tank from the side or back. The block outside of turret's back isn't even modeled, so if HESH hits back of the turret, it's going to explode the entire tank.

Mobility

Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 50 20 34.2 775 954 22.66 27.89
Realistic 45 18 442 500 12.92 14.62

The mobility of the ST-A2 is the same as predecessor, as well as their effective off-road and top speed - about (AB/RB) 40/33 km/h forward and -18/-15 km/h backwards off-road, with top speed being 50/45 forward and -20/-17 backwards .

Armaments

Main armament

Main article: M3A1 (90 mm)

The gun and the ammunition themselves are the same as the ones on ST-A1.

As with ST-A1, one must unlock APHE as the very first module and then try to get aim adjustment as soon as possible, leveling it same way as the predecessor, as otherwise it is very hard to defeat opposing tanks and earn research points on this tank.

Due to turret being elevated above engine deck, the gun can now depress enough to fire at tanks behind it, no matter how low their profile is, as long as they stay on even ground.

90 mm M3A1
Capacity Vertical
guidance 		Horizontal
guidance 		Stabilizer
40 -10°/+13° ±180° N/A
Turret rotation speed (°/s)
Mode Stock Upgraded Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
Arcade 22.85 31.62 38.40 42.47 45.18
Realistic 14.28 16.8 20.40 22.56 24.0
Reloading rate (seconds)
Stock Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
9.75 8.63 7.95 7.5


Ammunition
Penetration statistics
Ammunition Type of
warhead 		Penetration in mm @ 0°
10m 100m 500m 1000m 1500m 2000m
M318 shot AP 174 171 159 149 133 122
M71 shell HE 13 13 13 13 13 13
M82 shot APCBC 182 180 168 153 140 128
M304 shot APCR 264 260 245 226 210 191
M332 shot APCR 271 270 245 217 192 170
M348 shell HEATFS 305 305 305 305 305 305
Shell details
Ammunition Type of
warhead 		Velocity
in m/s 		Projectile
Mass in kg 		Fuse delay

in m:

Fuse sensitivity

in mm:

Explosive Mass in g
(TNT equivalent): 		Normalization At 30°
from horizontal: 		Ricochet:
0% 50% 100%
M318 shot AP 853 11 N/A N/A N/A +4° 47° 60° 65°
M71 shell HE 823 11 0.1 0.5 925 +0° 79° 80° 81°
M82 shot APCBC 853 11 1.2 14 137.2 +4° 48° 63° 71°
M304 shot APCR 1021 7.6 N/A N/A N/A +1.5° 66° 70° 72°
M332 shot APCR 1178 5.6 N/A N/A N/A +1.5° 66° 70° 72°
M348 shell HEATFS 853 6.5 0.0 0.1 926.17 +0° 65° 72° 75°
Smoke characteristic
Ammunition Velocity
in m/s 		Projectile
Mass in kg 		Screen radius
in m 		Screen time
in s 		Screen hold time
in s: 		Explosive Mass in g
(TNT equivalent):
M313 821 11 13 5 20 50
Optics
ST-A2 Optics
Which ones Default magnification Maximum magnification
Main Gun optics x8 x16
Comparable optics JPz 4-5

ST-A2 optics are identical to ST-A1. As usual, the user should exploit the superior magnification to target out enemy weaknesses or to snipe unsuspecting opponents from afar.

Machine guns

Main article: M1919A4 (7.62 mm)

The 12.7 mm M2HB machine gun was removed, so ST-A2 only has 7.62 mm M1919A4 in its turret. It still can be used to damage open-top SPG, but fighting light tanks with it is not possible. Planes are also harder to engage with it.

On other hand, its trajectory is similiar to APHE shell up to 760 m, so you can use it to check your aim in RB, if necessary, which further confirms sniper specialization of ST-A2.

7.62 mm M1919A4
Coaxial mount
Capacity (Belt capacity) Fire rate

(shots/minute)

Vertical

guidance

Horizontal

guidance

4,500 (250) 500 N/A N/A

Usage in battles

As the ST-A is Japan's first tank project for a new era of tank development, it shows the same gameplay issues as the Chi-Ha. The weak armor, the slow to mediocre turret rotation speed, quite a long hull and high drop-rate of shells.

But its not just all negatives, the mobility is good for what it is, has adequate gun depression and the ST-A even comes with HEAT like the Chi-Ha, this time in the form of M348 HEAT-FS researchable as tier IV modification.

Other than the similarities to the Chi-Ha, the ST-A2 has its own factors good and bad which should be kept in mind when playing. From the very good reverse speed, great zoom factor and many shell options, the ST-A2 also has an angled front plate unlike the ST-A1, which does place the turret higher, allowing it to shoot over the engine, at the cost of having a higher profile. Also unlike the ST-A1, the .50 has been removed from the ST-A2 which will make it harder to deal with lighter vehicles and planes.

Gameplay

The plan is simple and similar to the Chi-Ha & other early Japanese medium tanks, you want to stay either near or behind your allies and not rush forward, you can't take much damage, but you can deliver a punch. Pre-aim the turret and guide the enemy tanks into the sights as the rotation speed isn't of the fastest.

The further you are from your enemy the better for the inadequate armor, The ST-A comes with an amazing zoom factor and allows for clear sniping, but do keep in mind the shell drop-off are rather high.

Before you have your hands on the HEAT-FS, the safest bet is to exploit the flanks of the enemy, especially when starting with only AP, frontal penetrations won't happen reliable with the tanks the ST-A faces, try aiming for ammo racks, put a solid round into cramped crew members while trying to get the M82 shot and back up into cover or behind corners as the crew reloads the shell.

After unlocking the M82 APHE, placing shots is less important, once it penetrates, it's most likely to blow up good. It will come at the cost of the extra penetration, but when aiming for the sides, extra penetration isn't required. It's still a good idea to bring some AP shells with the tank just in-case you have to fight in a frontal engagement and the APHE fails to penetrate.

With the HEAT-FS finally unlocked, you can fully make use of the punches you can deal and the zoom you have, help your allies out with the toughest of enemies and simply frontally penetrate them.

Modules

Tier Mobility Protection Firepower
I Tracks Parts M82 shot Horizontal Drive
II Suspension Brake System FPE M304 shot Adjustment of Fire
III Filters Crew Replenishment M332 shot Elevation Mechanism
IV Transmission Engine M348 shell Artillery Support M313

Pros and cons

Pros:

  • Overall better sniper qualities than ST-A1 (but they only really matter in RB)
  • Can defend itself against other tanks in case of a rear flank, unlike ST-A1
  • Harder to hit ammo rack in turret from the front, and overall better protection against autocannons, HEAT and pure AP in turret
  • Harder to be destroyed by HE shot to the turret, can technically tank some attacker's plane assault with its front
  • Harder to destroy by poorly aimed shot in down-tier

Cons:

  • Worse against light tanks than predecessor due to lack of 12.7 mm MG
  • Still can be destroyed in one shot by nearly anything on battlefield via crew knockout, as long as they have APHE or HESH
  • Raised turret still cannot use certain hull down spots, but raises tank's profile
  • Hull weak spot is even more relevant now

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 the article about the vehicle and adding a block "/ History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref>, as well as adding them at the end of the article. This section may also include the vehicle's devblog entry (if applicable) and the ingame encyclopedia description (under === Encyclopedia Info ===, also if applicable).

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

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.

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • encyclopedia page on the tank;
  • other literature.


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 90B "Fuji"
Type 10 MBT  TKX (P)* · TKX* · Type 10
Other  Ka-Chi
USA  ▅M4A3 (76) W · ▅M47
  *Prototype

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