ST-A1

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Arcade Realistic Simulator

Arcade Realistic Simulator

Arcade Realistic Simulator

General info

The ST-A1 in the Garage.

The ST-A1 (also known by STA-1) is a Rank IV Japanese medium tank with a battle rating of 6.3. It was introduced along with the initial Japanese Ground Forces tree in Update 1.65 "Way of the Samurai".

The main purpose, usage and tactics recommendations

General play style

The ST-A1, similar to most Japanese tanks, is lightly armoured. Although the sloped upper glacis and the rounded turret are capable of bouncing off the occasional shot at BR 6.3, most enemies it faces will not have any problems in penetrating the armour. Combined with the tight placement of crew, modules, and ammo, the ST-A1 is easily taken out in a single shot. The ST-A1 can serve as a sniper or flanker (although it does not have the best speed), however, full utilization of the terrain is essential for survival - due to its powerful gun and low profile, the tank is able to fire off long-range shots without exposing itself. The excellent reverse speed should also be taken advantage of to quickly retreat into cover.

Vehicle characteristics

The STA1 bears the common Japanese post-war camouflage-schemes - green, bi-color green and the white spotted winter camouflage, as well as the beige-gray-green and multi-color camouflage patterns that are purchasable with Golden Eagles. The tank has a distinct silhouette with its rounded turret and long, low chassis, and carries the 90 mm M3A1 cannon found on the M46 Patton tank.

Tactics

Stay out of sight and find a good, defensible spot on the map and use your gun (preferably the HEAT-FS with 305 mm penetration) and excellent optical zoom. The tank has almost no armour, so do not rush forward - stay behind your allies. Take a shot, then use your reverse speed to retreat to cover.

Specific enemies worth noting

With 45mm armour on the hull and 50 mm mantlet, all enemies it faces are a threat.

Counter-tactics

When facing the ST-A1, the left side of the turret holds the gunner and commander, the right side holds ammo, so a well placed shot into the turret will result in a catastrophic explosion, or, at the least, double crew kill with solid shot. If you are unable to shoot the Gunner out, the Breach which is the largest thing in the turret will do as the repair is close to 1 minute (or less depending on crew) giving you enough time to reload and finish off the tank.

Pros and cons

Pros:

  • Vehicle body is thin and low = small front profile
  • Adequate gun depression of -9°
  • 90 mm gun that allow for combat against contemporary medium tanks
  • .50 cal machine gun allow for AA defense
  • Good speed, OK mobility
  • Very good reverse speed
  • Access to HEAT-FS shells

Cons:

  • Elevated engine deck prevents rear gun depression
  • Large ammo rack all over the turret, especially left side (Aiming right side)
  • Inadequate hull raw armor of 75 mm at front, relies on slopes and bounces for resistance against shots
  • Even more inadequate turret armor of around 40-75 mm overall
  • Gun sub-par against the heavy tanks like the Tiger II
  • High drop-rate of shells make long-range engagements difficult
  • 15mm of armor on top of the turrent and engine deck make it easy kills for Strafing Air and Artillery

Specifications

Arcade Realistic Simulator

Arcade Realistic Simulator

Arcade Realistic Simulator

Armaments

1 × 90 mm Gun M3A1 cannon (40 rounds)
1 × 12.7 mm Browning M2HB heavy machine gun (660 rounds)
1 × 7.62 mm Browning M1919A4 machine gun (4,500 rounds)

Main armament

1 × 90 mm Gun M3A1 cannon
  • Ammunition Capacity: 40 Shells
  • Gun Depression: -10°
  • Gun Elevation: 13°
  • Turret Rotation Speed: 14.3°/s (Stock), __._°/s (Upgraded), __._°/s (Prior + Full Crew), __._°/s (Prior + Expert Qualif.), __._°/s (Prior + Ace Qualif.)
  • Reload Rate: 11.8s (Stock), __._s (Full Crew), __._s (Prior + Expert Qualif.), __._s (Prior + Ace Qualif.)
1 × 90 mm Gun M3A1 cannon
  • Ammunition Capacity: 40 Shells
  • Gun Depression: -10°
  • Gun Elevation: 13°
  • Turret Rotation Speed: 14.3°/s (Stock), __._°/s (Upgraded), __._°/s (Prior + Full Crew), __._°/s (Prior + Expert Qualif.), __._°/s (Prior + Ace Qualif.)
  • Reload Rate: 11.8s (Stock), __._s (Full Crew), __._s (Prior + Expert Qualif.), __._s (Prior + Ace Qualif.)
1 × 90 mm Gun M3A1 cannon
  • Ammunition Capacity: 40 Shells
  • Gun Depression: -10°
  • Gun Elevation: 13°
  • Turret Rotation Speed: 14.3°/s (Stock), __._°/s (Upgraded), __._°/s (Prior + Full Crew), __._°/s (Prior + Expert Qualif.), __._°/s (Prior + Ace Qualif.)
  • Reload Rate: 11.8s (Stock), __._s (Full Crew), __._s (Prior + Expert Qualif.), __._s (Prior + Ace Qualif.)
Ammunition
Ammunition Penetration in mm @ 90° Type of
warhead
Velocity
in m/s
Projectile
Mass in kg
Fuse delay in m: Fuse sensitivity in mm: Explosive Mass in
TNT equivalent
in g:
Normalization At 30° from horizontal: Ricochet:
10m 100m 500m 1000m 1500m 2000m 0% 50% 100%
M318 shot 192 191 179 165 152 139 AP 853 11 N/A N/A N/A +4° 43° 30° 25°
M71 shell 13 13 13 13 13 13 HE 823 11 0.1 0.5 925 +0° 11° 10°
M82 shot 170 169 164 151 138 127 APCBC 853 11 1.2 20 137.2 +4° 42° 27° 19°
M304 shot 264 260 245 226 210 191 APCR 1021 7.6 N/A N/A N/A +1.5° 24° 20° 18°
M332 shot 271 270 245 217 192 170 APCR 1178 5.6 N/A N/A N/A +1.5° 24° 20° 18°
M348 shell 305 305 305 305 305 305 HEATFS 853 6.5 0.0 0.1 926.17 +0° 25° 18° 15°
Ammunition Type of
warhead
Velocity
in m/s
Projectile
Mass in kg
Screen radius
in m
Screen time
in s
Screen hold time
in s:
Explosive Mass in
TNT equivalent
in g:
M313 Smoke 821 11 13 5 20 50
Ammo racks
Ammo racks of the ST-A1.
Full
ammo
1st
rack empty
2nd
rack empty
3rd
rack empty
Recommendations Visual
discrepancy
40 39 (+1) 30 (+10) (+39) Turret empty: 30 (+10) no

Secondary armaments

1 × 12.7 mm Browning M2HB heavy machine gun (pintle-mounted)
1 × 7.62 mm Browning M1919A4 machine gun (coaxial)

Crew

  • Commander
  • Gunner
  • Loader
  • Driver

Total: 4 Crew members

Armour

Armour type:

  • Rolled homogeneous armour
  • Cast homogeneous armour (Turret)
Armour Front Sides Rear Roof
Hull 75 mm (52°) Front glacis
75 mm (47°) Lower glacis
25 mm (45°) Top
25 mm Bottom
15 mm (15-44°) Top
15 mm Bottom
15 mm
Turret 75 mm (5-55°) Turret front
50 mm (8-65°) Gun mantlet
40 mm (16-32°) 25 mm (7-10°) 15 mm
Armour Sides Roof
Cupola 40 mm 15 mm

Notes:

  • Suspension wheels and tracks are 20 mm thick.

Engine & mobility

Weight: 34.2 ton

Max Speed: 50 km/h
Stock

  • Engine Power: 775 hp @ 2200 rpm
  • Power-to-Weight Ratio: 22.66 hp/ton
  • Maximum Inclination: 35°

Upgraded

  • Engine Power: ___ hp @ 2200 rpm
  • Power-to-Weight Ratio: __.__ hp/ton
  • Maximum Inclination: __°
Weight: 34.2 ton

Max Speed: 45 km/h
Stock

  • Engine Power: 442 hp @ 2200 rpm
  • Power-to-Weight Ratio: 12.92 hp/ton
  • Maximum Inclination: 39°

Upgraded

  • Engine Power: ___ hp @ 2200 rpm
  • Power-to-Weight Ratio: __.__ hp/ton
  • Maximum Inclination: __°
Weight: 34.2 ton

Max Speed: 45 km/h
Stock

  • Engine Power: 442 hp @ 2200 rpm
  • Power-to-Weight Ratio: 12.92 hp/ton
  • Maximum Inclination: 39°

Upgraded

  • Engine Power: ___ hp @ 2200 rpm
  • Power-to-Weight Ratio: __.__ hp/ton
  • Maximum Inclination: __°

Modules and improvements

History of creation and combat usage

Screenshots and fan art

Skins and camouflages for the _____ from live.warthunder.com.

Additional information (links)

[Devblog] ST-A1: Stepping into a New Era

References


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jp_st_a1.png

Icon-country-jap.png ST-A1
Nation Japan
Type Medium tank
Rank 4
Battle Rating
6.3
6.3
6.3

   Metric✓       Imperial   

   Metric       Imperial✓   

Characteristics
Weight
34,200 kg
75,398 lb
Number of Crew 4
Hull armour thickness
45/25/15/15 mm
1.77/0.98/0.59/0.59 inches
Statistics
Engine power (stock)
775 hp
442 hp
442 hp
Engine power (upgraded)
___ hp
500 hp
500 hp
HP/ton ratio (stock)
22.66
23.02
12.92
13.13
12.92
13.13
HP/ton ratio (Upgraded)
__.__
__.__
14.62
14.85
14.62
14.85
Max speed
50 km/h
31 mph
45 km/h
28 mph
45 km/h
28 mph
Main Weapon
1 x 90 mm M3A1 Cannon
Ammo stowage 40 rounds
Vertical guidance -10°/13°
Secondary Weapon
1 x 12.7 mm M2HB Heavy machine gun
Ammo stowage 660 rounds
Mount Pintle mount
Vertical guidance -5°/90°
Horizontal guidance -30°/30°
1 x 7.62 mm M1919A4 Machine gun
Ammo stowage 4,500 rounds
Mount Coaxial
Economy
Required RP 95,000 RP
Vehicle cost 260,000 SL
Crew training cost 75,000 SL
Max repair cost*
2,920 SL
3,500 SL
4,410 SL
Free repair time (Stock)
4d 12h
8d
8d
Free repair time (Upgraded)
_d __h
_d __h
_d __h
Warning: this sidebar is a WIP and can be incorrect. Last updated 1.77.2.149.