Difference between revisions of "BT-7"

From War Thunder Wiki
Jump to: navigation, search
m (Edits.)
(Tank jump already present, Walter Christie written about on BT-5#History (more relevant))
(9 intermediate revisions by 6 users not shown)
Line 2: Line 2:
  
 
== 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.'' -->
[[File:GarageImage_BT-7.jpg|420px|thumb|left]]
+
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
{{break}}
+
{{Break}}
 
The '''{{specs|name}}''' is a rank {{specs|rank}} Soviet light tank {{Battle-rating}}. It was introduced during the Closed Beta Test for Ground Forces before Update 1.41. Like the [[BT-5]], but with improved front armour, it is fast and has an adequate 45 mm cannon able to destroy opposing tanks.
 
The '''{{specs|name}}''' is a rank {{specs|rank}} Soviet light tank {{Battle-rating}}. It was introduced during the Closed Beta Test for Ground Forces before Update 1.41. Like the [[BT-5]], but with improved front armour, it is fast and has an adequate 45 mm cannon able to destroy opposing tanks.
  
The BT-7 is a fast tank with relatively thin armour. It can be useful to flank and hit the side armour of enemy tanks, taking advantage of it's very high top speed. The armour is very well angled at certain points, however being as thin as it is, don't count on it to protect you very well; your speed can be your best defense, so move fast and try to zig-zag a bit to make yourself a more difficult target for tanks farther away (not too much though, or you'll bleed off too much speed).
+
The BT-7 is a fast tank with relatively thin armour. It can be useful to flank and hit the side armour of enemy tanks, taking advantage of its very high top speed. The armour is very well angled at certain points, however being as thin as it is, don't count on it to protect you very well; your speed can be your best defence, so move fast and try to zig-zag a bit to make yourself a more difficult target for tanks farther away (not too much though, or you'll bleed off too much speed).
  
 
The BT-7 surprises with its Christie suspension. Closer to a race-car than a tank, this lightning on tracks is fun to drive, but not particularly easy. With its high top speed and lightweight, this tank will drift in turns. For maximum control in turns, reduce throttle beforehand and the only tip/nudge the turn-keys. It needs some time to get used to, however, it does prepare you for the T-34s break-turns.
 
The BT-7 surprises with its Christie suspension. Closer to a race-car than a tank, this lightning on tracks is fun to drive, but not particularly easy. With its high top speed and lightweight, this tank will drift in turns. For maximum control in turns, reduce throttle beforehand and the only tip/nudge the turn-keys. It needs some time to get used to, however, it does prepare you for the T-34s break-turns.
Line 13: Line 13:
 
Off-road behaviour is good and the aforementioned drifts aren't as extreme as on city-roads. Top speed is not really reduced as well, making the BT-7 one of the fastest early tanks due to its very wide tracks, something both the ''[[M2A4|Light tank M2]]'' and [[Pz.II C|Panzer II]] miss.
 
Off-road behaviour is good and the aforementioned drifts aren't as extreme as on city-roads. Top speed is not really reduced as well, making the BT-7 one of the fastest early tanks due to its very wide tracks, something both the ''[[M2A4|Light tank M2]]'' and [[Pz.II C|Panzer II]] miss.
  
The crew compartment is very small and only inhabited by the driver, commander and another crew member. The latter has to perform the tasks of the gunner and radio-man."Not getting shot at" is the best advice for the crew to survive.
+
The crew compartment is very small and only inhabited by the driver, commander and another crew member. The latter has to perform the tasks of the gunner and radio-man. "Not getting shot at" is the best advice for the crew to survive.
  
The BT-7 was the last of the BT series of Soviet cavalry tanks that were produced in large numbers between 1935 and 1940. They were lightly armoured, but reasonably well-armed for their time, and had much better mobility than other contemporary tank designs. The BT tanks were known by the nickname Betka from the acronym, or it's diminutive, Betushka.
+
The BT-7 was the last of the BT series of Soviet cavalry tanks that were produced in large numbers between 1935 and 1940. They were lightly armoured, but reasonably well-armed for their time, and had much better mobility than other contemporary tank designs. The BT tanks were known by the nickname Betka from the acronym, or its diminutive, Betushka.
  
The BT-7 Tank's successor would be the famous T-34 medium tank, introduced in 1940, which would replace all of the Soviet fast tanks, infantry tanks, and medium tanks then in service.
+
The BT-7 tank's successor would be the famous T-34 medium tank, introduced in 1940, which would replace all of the Soviet fast tanks, infantry tanks, and medium tanks then in service.
  
 
== 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 helpful for survival in combat?''
+
<!-- ''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.'' -->
 
+
[[File:BT-7 Firing its cannon.jpg|thumb|BT-7 Firing its cannon]]
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''-->
 
 
 
 
With 20 mm armour on the front and with all that inclination on the armour panels, this vehicle had decent protection. With 5 mm less armour on the turret, that's the vulnerability of the tank, especially on the turret's backside, where the ammo is stored. However, you only get 3 crew members in the vehicle, making the tank vulnerable to any "crew knocked out" scenarios. One strong point for the vehicle is that you have speed, and the trade-off of speed vs. armour can come in handy especially travelling around 59 km/h (It's very hard to reach 60 km/h) ensures any enemy SPG will be very unlikely to hit close to you!
 
With 20 mm armour on the front and with all that inclination on the armour panels, this vehicle had decent protection. With 5 mm less armour on the turret, that's the vulnerability of the tank, especially on the turret's backside, where the ammo is stored. However, you only get 3 crew members in the vehicle, making the tank vulnerable to any "crew knocked out" scenarios. One strong point for the vehicle is that you have speed, and the trade-off of speed vs. armour can come in handy especially travelling around 59 km/h (It's very hard to reach 60 km/h) ensures any enemy SPG will be very unlikely to hit close to you!
  
Line 33: Line 31:
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! Armour !! Front !! Sides !! Rear !! Roof  
+
! Armour !! Front !! Sides !! Rear !! Roof
 
|-
 
|-
 
| Hull || 15 mm (62°) ''Front glacis'' <br /> 20 mm (19°) ''Driver's hatch'' <br> 20 mm (5-52°) ''Lower hull''|| 20 mm ''Front'' <br> 15 mm ''Rear'' || 10 mm (55°) ''Top'' <br /> 13 mm (16-58°) ''Bottom'' || 10 mm
 
| Hull || 15 mm (62°) ''Front glacis'' <br /> 20 mm (19°) ''Driver's hatch'' <br> 20 mm (5-52°) ''Lower hull''|| 20 mm ''Front'' <br> 15 mm ''Rear'' || 10 mm (55°) ''Top'' <br /> 13 mm (16-58°) ''Bottom'' || 10 mm
Line 45: Line 43:
 
=== Mobility ===
 
=== Mobility ===
 
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
 
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
 +
[[File:BT-7 Screenshot 2.jpg|thumb|BT-7 driving through "[[Advance to the Rhine|Advance To The Rhine]]"]]
  
{{tankMobility|abMinHp= 620|rbMinHp= 354|<!--AoAweight=(optional) -->}}
+
{{tankMobility|abMinHp=620|rbMinHp=354}}
 +
 
 +
Like its predecessor the [[BT-5]], the BT-7 has competitive mobility, easily being able to reach capture points before most other tanks or get to competitive camping spots before anyone else, the 400 hp engine gives the BT-7 29.2 hp per ton, which also allows the BT-7 to scale hills and smaller obstacles with relative ease.
  
 
== Armaments ==
 
== 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 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.''-->
+
<!-- ''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|20-K (45 mm)}}
 
{{main|20-K (45 mm)}}
  
{| class="wikitable" style="text-align:center"
+
The 20-K is the typical Soviet rank I gun. Players should get used to it since it will be your main armament up until rank II. The APHEBC round has a good amount of HE filler, meaning penetrating shells will do good damage, sometimes even one-shotting enemies. At much longer ranges, shells begin to lose penetration and accuracy but on most common low tier maps this is not a problem due to the smaller map sizes.
|-
+
 
! colspan="6" | [[20-K (45 mm)|45 mm 20-K]]
+
{| class="wikitable" style="text-align:center" width="100%"
|-
 
! colspan="3" rowspan="1" style="width:5em" |Capacity
 
! rowspan="1" | Vertical <br> guidance
 
! rowspan="1" | Horizontal <br> guidance
 
! rowspan="1" | Stabilizer
 
|-
 
| colspan="3" | 188 || -6°/+25° || ±180° || N/A
 
|-
 
! colspan="6" | Turret rotation speed (°/s)
 
|-
 
! 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'' || 9.50 || 13.20 || _.__ || _.__ || _.__
+
! colspan="5" | [[20-K (45 mm)|45 mm 20-K]] || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
 
|-
 
|-
| ''Realistic'' || 9.50 || 11.20 || _.__ || _.__ || _.__
+
! Mode !! Capacity !! Vertical !! Horizontal !! Stabilizer
 +
! Stock !! Upgraded !! Full !! Expert !! Aced
 +
! Stock !! Full !! Expert !! Aced
 
|-
 
|-
! colspan="4" | Reloading rate (seconds)
+
! ''Arcade''
 +
| rowspan="2" | 188 || rowspan="2" | -6°/+25° || rowspan="2" | ±180° || rowspan="2" | N/A || 15.23 || 21.08 || 25.60 || 28.31 || 30.12 || rowspan="2" | 3.77 || rowspan="2" | 3.33 || rowspan="2" | 3.07 || rowspan="2" | 2.90
 
|-
 
|-
! colspan="1" style="width:4em" |Stock
+
! ''Realistic''
! colspan="1" style="width:4em" |Prior + Full crew
+
| 9.52 || 11.20 || 13.60 || 15.04 || 16.00
! colspan="1" style="width:4em" |Prior + Expert qualif.
 
! colspan="1" style="width:4em" |Prior + Ace qualif.
 
|-
 
| 3.80 || _.__ || _.__ || _.__
 
 
|-
 
|-
 
|}
 
|}
  
===== Ammunition =====
+
==== Ammunition ====
 
{| class="wikitable sortable" style="text-align:center" width="100%"
 
{| class="wikitable sortable" style="text-align:center" width="100%"
 
! colspan="8" | Penetration statistics
 
! colspan="8" | Penetration statistics
 
|-
 
|-
 
! rowspan="2" data-sort-type="text" | Ammunition
 
! rowspan="2" data-sort-type="text" | Ammunition
! rowspan="2" class="unsortable" | Type of <br /> warhead
+
! rowspan="2" | Type of<br>warhead
! colspan="6" | '''Penetration''' '''''in mm''''' '''@ 90°'''
+
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''
 
|-
 
|-
! 10m
+
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
! 100m
 
! 500m
 
! 1000m
 
! 1500m
 
! 2000m
 
 
|-
 
|-
| BR-240 || APHEBC ||70||68||59||50||42||35
+
| BR-240 || APHEBC || 70 || 68 || 59 || 50 || 42 || 35
|-  
+
|-
| BR-240SP || AP || 73 ||71||62||52||44||37
+
| BR-240SP || AP || 73 || 71 || 62 || 52 || 44 || 37
 
|-
 
|-
 
|}
 
|}
 
{| class="wikitable sortable" style="text-align:center" width="100%"
 
{| class="wikitable sortable" style="text-align:center" width="100%"
! colspan="11" | Shell details
+
! colspan="10" | Shell details
 
|-
 
|-
 
! rowspan="2" data-sort-type="text" | Ammunition
 
! rowspan="2" data-sort-type="text" | Ammunition
! rowspan="2" class="unsortable" | Type of <br /> warhead
+
! rowspan="2" | Type of<br>warhead
! rowspan="2" |Velocity <br /> in m/s
+
! rowspan="2" | Velocity<br>(m/s)
! rowspan="2" |Projectile<br />Mass in kg
+
! rowspan="2" | Projectile<br>Mass (kg)
! rowspan="2" | ''Fuse delay''
+
! rowspan="2" | Fuse delay<br>(m)
''in m:''
+
! rowspan="2" | Fuse sensitivity<br>(mm)
! rowspan="2" | ''Fuse sensitivity''
+
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)
''in mm:''
+
! colspan="3" | Ricochet
! rowspan="2" | ''Explosive Mass in g<br /> (TNT equivalent):''
 
! rowspan="2" | ''Normalization At 30° <br> from horizontal:''
 
! colspan="3" | ''Ricochet:''
 
 
|-
 
|-
! 0%
+
! 0% !! 50% !! 100%
! 50%
 
! 100%
 
 
|-
 
|-
| BR-240 || APHEBC || 760 || 1.43 || 1.2 || 9 || 29.26 || +4° || 48° || 63° || 71°
+
| BR-240 || APHEBC || 760 || 1.43 || 1.2 || 9.0 || 29.3 || 48° || 63° || 71°
|-  
+
|-
| BR-240SP || AP || 757 || 1.43 || N/A || N/A || N/A || -1° || 47° || 60° || 65°
+
| BR-240SP || AP || 757 || 1.43 || N/A || N/A || N/A || 47° || 60° || 65°
 
|-
 
|-
 
|}
 
|}
  
===== [[Ammo racks|Ammo racks]] =====
+
==== [[Ammo racks]] ====
{| class="wikitable sortable" style="text-align:center"
+
{| 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" |5th<br /> rack empty
+
! 5th<br>rack empty
! class="wikitable unsortable" |6th<br /> rack empty
+
! 6th<br>rack empty
!7th rack empty
+
! 7th<br>rack empty
!8th rack empty
+
! 8th<br>rack empty
!9th rack empty
+
! 9th<br>rack empty
!10th rack empty
+
! 10th<br>rack empty
!11th rack empty
+
! 11th<br>rack empty
!12th rack empty
+
! 12th<br>rack empty
!13th rack empty
+
! 13th<br>rack empty
! class="wikitable unsortable" |Visual<br /> discrepancy
+
! Visual<br>discrepancy
 
|-
 
|-
|| '''188''' || 174 ''(+14)''|| 162 ''(+24)'' || 147 ''(+41)'' || 135 ''(+53)'' || 123 ''(+65)''|| 108 ''(+80)''||89 ''(+99)''|| 73 ''(+115)'' || 57 ''(+131)'' || 41 ''(+147)'' || 25 ''(+163)'' || 13 ''(+175)'' || 1 ''(+187)''|| style="text-align:center" | No
+
| '''188''' || 174 ''(+14)''|| 162 ''(+24)'' || 147 ''(+41)'' || 135 ''(+53)'' || 123 ''(+65)''|| 108 ''(+80)''||89 ''(+99)''|| 73 ''(+115)'' || 57 ''(+131)'' || 41 ''(+147)'' || 25 ''(+163)'' || 13 ''(+175)'' || 1 ''(+187)''|| No
 
|-
 
|-
 
|}
 
|}
[[File:Ammoracks_BT-7.png|right|thumbnail|x250px|[[Ammo racks|Ammo racks]] of the BT-7.]]
+
 
Turret empty: 147 ''(+41);'' Side racks empty: 89 (+99)
+
[[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]]
 +
Turret empty: 147 ''(+41)''; Side racks empty: 89 ''(+99)''
  
 
=== 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.''-->
+
<!-- ''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|DT (7.62 mm)}}
 
{{main|DT (7.62 mm)}}
  
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="7" | [[DT (7.62 mm)|7.62 mm DT]]
+
! colspan="5" | [[DT (7.62 mm)|7.62 mm DT]]
 +
|-
 +
! Mount
 +
! Capacity<br>(Belt capacity)
 +
! Rate of fire<br>(shots/minute)
 +
! Vertical<br>guidance
 +
! Horizontal<br>guidance
 +
|-
 +
| Coaxial || 1,890 (63) || 600 || N/A || N/A
 +
|-
 +
|}
 +
 
 +
== 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 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 are two common schools of thought when driving the BT-7, firstly rushing a capture point using your better than average mobility to get there before other friendly or enemy tanks. This tactic can help to gain points early in the game and perhaps even a few kills as enemy tanks try to take the point that you captured, but your fairly thin armour will leave you at risk of being crippled and destroyed by enemy fire unless you retreat to cover or get backup from friendly vehicles. A second school of thought is not charge right into the combat, but wait a while to see how the battle develops - observe where and how many enemy tanks go, maybe fire a few shots from a distance. Use your great mobility to get to the best positions and flank the enemy, from these positions you could snipe into the main battler area to damage and kill enemy vehicles. You could then decide to use the BT-7's mobility to charge at lonely opponents, which at close range have no chance of keeping their guns pointed at you as you can essentially drive circles around them. Keep in mind that charging into more than 1 opponent is usually a quick end as it is very hard to not get hit from either of them at the same time. There is basically paper armour on BT-7 to stop anything other than machine gun fire, overall speed is key, being mobile and changing your position often will be a great way to avoid enemy fire and potential revenge kill attempts.
 +
 
 +
If you lose one of your 3 crew members it would be advisable to head to a friendly capture point to use your crew replenishment as your vehicle needs 2 members to operate, and having a 'spare' crew member can come in handy.
 +
 
 +
'''Enemies worth noting:'''
 +
 
 +
* [[Pz.II (Disambiguation)|Pz.IIs]], [[Flakpanzer I]]: Although not as fast as the BT-7, the Pz.IIs still have an average speed of around 40 km/h. Also they are equipped with a deadly 20 mm autocannon that will punch holes on the BT-7 with ease, and their rate of fire can quickly kill multiple crew. The BT-7 has thin armour protecting only 3 crew, making it extremely vulnerable to those autocannons. Try to finish them before they shoot at you.
 +
 
 +
* [[Sd.Kfz.234/2|Sd.Kfz.234 series]]: These wheeled vehicles all have scary on-road speed of more than 60 km/h, so in any map with roads connecting to the points they can always get there first and set up an ambush. However, these vehicles are wheeled meaning they cannot turn in-place, they are rather sluggish when trying to turn, and they have either slow turret traverse or no turret at all, so the player can use this to their advantage. Wiggle/circle around them to avoid their guns and force them to turn, then aim carefully and immobilise them. Note that the DT machine gun on the BT-7 only has 10 mm penetration at most, making it almost impossible to go through their armour and kill any crew, so don't think of destroying these wheeled vehicles with the MG.
 +
 
 +
* [[M8 Greyhound]], [[M3 Stuart (Family)|M3 Stuarts]]: These vehicles can be equally fast, and the M8 can outrun the BT-7 if it's travelling on road, allowing them to get to the point before the BT-7 does. Therefore, if America is on the other side the player might want to change their tactics and not rush the point since low tier battles are always filled with fast tanks. The M8 has a roof-mounted .50 cal MG which easily tears the BT-7's armour apart and kills the crew inside. Also most of them have a vertical stabiliser that works at low speed, so avoid firing on the move with them.
 +
 
 +
* [[B1 bis]]: A heavily armoured tank for its BR, but do not panic when you see it. Don't fire at a distance unless you are directly aiming at its side armour. The best option is to try and get as close to it as possible (point-blank range is ideal) and shoot straight at its side. However sometimes due to a variety of reasons the player might be unable to flank it and has to face it frontally. If that is the case, shoot the rather vertical driver's compartment and there's a great chance of penetration, killing the driver and the commander (which is also the gunner for the turret). Or, shoot between the two guns on the turret to kill the commander/gunner. Or, shoot at the near-vertical part of the curved gun mantlet of the big hull-mounted gun.
 +
 
 +
=== Modules ===
 +
{| class="wikitable"
 +
! Tier
 +
! colspan="2" | Mobility
 +
! Protection
 +
! colspan="2" | Firepower
 +
|-
 +
| I
 +
| Tracks
 +
|
 +
| Parts
 +
| Horizontal Drive
 +
| BR-240SP
 
|-
 
|-
! colspan="7" | ''Coaxial mount''
+
| II
 +
| Suspension
 +
| Brake System
 +
| FPE
 +
| Adjustment of Fire
 +
|
 
|-
 
|-
! colspan="4" rowspan="1" style="width:5em" |Capacity (Belt capacity)
+
| III
! rowspan="1" | Fire rate <br> (shots/minute)
+
| Filters
! rowspan="1" | Vertical <br> guidance
+
|
! rowspan="1" | Horizontal <br> guidance
+
| Crew Replenishment
 +
| Elevation Mechanism
 +
|
 
|-
 
|-
| colspan="4" | 1,890 (63) || 600 || N/A || N/A
+
| IV
 +
| Transmission
 +
| Engine
 +
|
 +
| Artillery Support
 +
|
 
|-
 
|-
 
|}
 
|}
  
== Usage in the battles ==
+
=== Pros and cons ===
<!--''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).''-->
+
<!-- ''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".'' -->
Best tactics are probably, however, to not charge right into the combat, but wait a while to see how the battle develops - observe where and how many enemy tanks go, maybe fire a few shots from the distance. Use your great mobility to get to the best positions. And then use its awesome speed to charge at lonely opponents, which at close range have no chance of keeping their guns pointed at you. Keep in mind that charging into more than 1 opponent is usually a quick end, as it is very hard to not get hit from either of them at the same time. There is basically paper armour on BT-7 to stop anything other than machine gun fire. Finally, try to avoid AA vehicles, as they will have no problem targeting and destroying you, even from the distance.
 
  
=== 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".''-->
 
 
'''Pros:'''
 
'''Pros:'''
  
* Very fast and nimble
+
* Deadly firepower at its BR: high penetration of up to 70 mm, with the 29 g TNT it can frontally one-shot most tanks like [[Pz.II (Disambiguation)|Pz.II]], [[Chi-Ha (Family)|Chi-Ha]] or [[M3 Stuart (Family)|M3 Stuart]]; its firepower is effective even in high tier battles, if aiming at the right spot
* Excellent offroad capability
+
* One of the fastest tanks in the game, great acceleration and overall mobility makes it a nice point-capper, flanker and climber- can outrun the commonly seen M3 Stuart on road
* Powerful engine and wide tracks make the BT-7 a good climber
+
* 3-4 second reload time is quick enough to destroy opponents it cannot one-shot, like [[Pz.IV C]] and [[LVT(A)(1)|LVT(A)]] series
* Good cannon with a good rate of fire
+
* Adequate reverse speed of -10 km/h allows it to quickly retreat from danger when there is no time to turn around
* Often used as a rusher/scout in higher rank matches. It can get to capture points more quickly than most tanks
+
* Small and low profile allows it to easily hide behind cover or bushes
  
 
'''Cons:'''
 
'''Cons:'''
  
* Exposed tracks and suspensions are prone to be damaged
+
* Poor survivability: non-existent armour on all sides plus the closely packed crew makes it vulnerable to autocannons ([[Pz.II (Disambiguation)|Pz.II]], [[Flakpanzer I]]), heavy MG ([[M13 MGMC]]) and even solid shells
* The whole tank is basically ammo rack and fuel tank on tracks
+
* Turret and hull traverse is rather slow, meaning it may not be able to keep track of fast targets- this is also a disadvantage in a close quarters duel, as other light tanks like [[M3/M5 Stuart (Family)|M3]] can turn way faster
* Quite large and difficult to hide
+
* Although fast, it is still slower than the [[Sd.Kfz.234/1|Sd.Kfz.234]] series on road.
* Difficult to drive with precision - can slew on turns and bounces a lot after braking.
+
* Gun depression of only -6 degrees (worse than previous BT-5) means it cannot effectively fight in hills
* Very weak armour all around, more flat un-angled areas than BT-5
+
* Fuel tanks and ammo are scattered inside and are prone to detonation upon being hit
* Vulnerable to heavy  machine gun fire
 
 
 
* Worse gun depression than BT-5 (below average now)
 
* Sometimes stalls on turns on soft terrain
 
  
 
== 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).'' -->
 
===Development===
 
===Development===
The success of the [[BT-5|BT light tanks]] in Soviet service prompted additional upgrades and other developmental projects done on the design to increase its service life. The development led to the final model of the BT light tank series, the '''BT-7'''. The tank differed from the older BT-5 tank with a welded hull, redesigned hull front, and a new engine in the Model 1935 version. The '''Model 1937''' version of the BT-7 added a redesigned turret that featured sloping armour.  
+
The success of the [[BT-5|BT light tanks]] in Soviet service prompted additional upgrades and other developmental projects done on the design to increase its service life. The development led to the final model of the BT light tank series, the '''BT-7'''. The tank differed from the older BT-5 tank with a welded hull, redesigned hull front, and a new engine in the Model 1935 version. The '''Model 1937''' version of the BT-7 added a redesigned turret that featured sloping armour.
  
 
The tank initially had a canted-ellipse shaped turret mounting the main gun and coaxial machine guns with the focus of allowing the tank to mount different tanks without changing the whole design, which led to the development of two main kinds of BT-7s, the normal variant with a 45 mm 20K gun for anti-armour and a artillery variant called the ''BT-7A'' which mounted a 76.2 mm KT-26 howitzer for anti-infantry. The tank was redesigned before it entered production by using the BT-5 turret instead with the main gun and coaxial machine gun still attached, though the concept of swapping to different guns was still in development for the tank. A radio was also installed on the turret as well. The tank had a three-man crew, the commander/gunner and loader in the turret, and the driver in the front. Production started in 1935 but was redesigned in 1937 with a new conical turret that allowed more ammunition to be stored and a machine gun on the rear of the turret. The BT-7 mod. 1937 also had improvements on the drive wheels, gearbox, and tracks by 1938. The BT-7 went on to be produced from 1935 to 1940 for a total unit production of between 2,700 to 5,300 tanks.
 
The tank initially had a canted-ellipse shaped turret mounting the main gun and coaxial machine guns with the focus of allowing the tank to mount different tanks without changing the whole design, which led to the development of two main kinds of BT-7s, the normal variant with a 45 mm 20K gun for anti-armour and a artillery variant called the ''BT-7A'' which mounted a 76.2 mm KT-26 howitzer for anti-infantry. The tank was redesigned before it entered production by using the BT-5 turret instead with the main gun and coaxial machine gun still attached, though the concept of swapping to different guns was still in development for the tank. A radio was also installed on the turret as well. The tank had a three-man crew, the commander/gunner and loader in the turret, and the driver in the front. Production started in 1935 but was redesigned in 1937 with a new conical turret that allowed more ammunition to be stored and a machine gun on the rear of the turret. The BT-7 mod. 1937 also had improvements on the drive wheels, gearbox, and tracks by 1938. The BT-7 went on to be produced from 1935 to 1940 for a total unit production of between 2,700 to 5,300 tanks.
Line 216: Line 236:
  
 
===Legacy===
 
===Legacy===
Perhaps the most important impact the BT light tanks series was that it kick-started the development of the [[T-34 (1940)|T-34]] medium tank, which would go on as the most produced tank of World War II. A new design team was formed in 1937 at the KhPZ factory, where they built prototypes utilizing the more armour and a heavier gun onto the design, which was called the ''A-32'' and was approved for production as the T-34 tank. The BT tanks also serve as the basis of support vehicles such as the ''BT-7A'' artillery tan, ''BT-7TU'' command tank, ''OP-7'' flamethrower tank, and even the ''TT-BT-7'' remote-controlled tank. An attempt in 1940 also had the BT-7 up-armoured with hinged homogeneous armour, which added five tons to the design weight. These vehicles are not known to have seen service in combat units.
+
Perhaps the most important impact the BT light tanks series was that it kick-started the development of the [[T-34 (1940)|T-34]] medium tank, which would go on as the most produced tank of World War II. A new design team was formed in 1937 at the KhPZ factory, where they built prototypes utilizing the more armour and a heavier gun onto the design, which was called the ''A-32'' and was approved for production as the T-34 tank. The BT tanks also serve as the basis of support vehicles such as the ''BT-7A'' artillery tan, ''BT-7TU'' command tank, ''OP-7'' flamethrower tank, and even the ''TT-BT-7'' remote-controlled tank. An attempt in 1940 also had the BT-7 up-armoured with hinged homogeneous armour, which added five tons to the design weight. These vehicles are not known to have seen service in combat units.  
 +
 
 +
 
 +
{{Notice|The BT-7 also holds the record for the furthest jump in a tank, at 42 metres, set in 1936.}}
  
 
=== In-game description ===
 
=== In-game description ===
In the second half of 1937, the BT-7 tank was mass-produced with a conical turret, a three-speed gearbox and strengthened suspension. In comparison to the BT-7 Mod. 1935, the tank's weaponry became more powerful due to the inclusion of a DT machine gun in the turret. Its ammunition capacity was increased by 44 and totalled 188 rounds in the battle vehicles and 145 rounds in the command vehicles equipped with a radio set. Some of the tanks were equipped with an anti-aircraft gun.  
+
In the second half of 1937, the BT-7 tank was mass-produced with a conical turret, a three-speed gearbox and strengthened suspension. In comparison to the BT-7 Mod. 1935, the tank's weaponry became more powerful due to the inclusion of a DT machine gun in the turret. Its ammunition capacity was increased by 44 and totalled 188 rounds in the battle vehicles and 145 rounds in the command vehicles equipped with a radio set. Some of the tanks were equipped with an anti-aircraft gun.
  
 
The unit command vehicles were equipped with a 71-TK-1 radio set with a hand-rail antenna, and later with a rod antenna. To allow the vehicle to fire its cannon and coaxial machine gun at night, it was equipped with two special projector headlights. Over the course of its modernisation, the thickness of its frontal hull armour reached 22 mm. The turret's armour was also strengthened using vertically sloping armour plates. Its combat-loaded weight grew to 13,925 kg. Factory No. 183 alone manufactured 4,727 tanks of this series.
 
The unit command vehicles were equipped with a 71-TK-1 radio set with a hand-rail antenna, and later with a rod antenna. To allow the vehicle to fire its cannon and coaxial machine gun at night, it was equipped with two special projector headlights. Over the course of its modernisation, the thickness of its frontal hull armour reached 22 mm. The turret's armour was also strengthened using vertically sloping armour plates. Its combat-loaded weight grew to 13,925 kg. Factory No. 183 alone manufactured 4,727 tanks of this series.
Line 226: Line 249:
  
 
With appropriate tactics and a well-trained crew, the BT-7 could successfully oppose all types of German tanks at the beginning of the war, being inferior to them only in armour.
 
With appropriate tactics and a well-trained crew, the BT-7 could successfully oppose all types of German tanks at the beginning of the war, being inferior to them only in armour.
 +
 
BT-7 tanks participated in combat operations on the Soviet-German front right up until 1944, and in 1945 they served in the war with Japan. A few captured tanks served in the Finnish army until the beginning of the 50s.
 
BT-7 tanks participated in combat operations on the Soviet-German front right up until 1944, and in 1945 they served in the war with Japan. A few captured tanks served in the Finnish army until the beginning of the 50s.
  
 
== Media ==
 
== Media ==
[http://live.warthunder.com/feed/camouflages/?q=%23bt7 Skins and camouflages for the BT-7 from live.warthunder]
+
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
 +
 
 +
* [http://live.warthunder.com/feed/camouflages/?q=%23bt7 Skins and camouflages for the BT-7 from live.warthunder]
  
== Read 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 vehicles;''
 
* ''reference to the series of the vehicles;''
 
* ''links to approximate analogues of other nations and research trees.''
 
* ''links to approximate analogues of other nations and research trees.''
  
''ETC.''
+
== External links ==
 
 
== Sources ==
 
 
''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 tank;''
 
* ''other literature.''
 
* ''other literature.''
  
 
{{USSR light tanks}}
 
{{USSR light tanks}}

Revision as of 10:43, 27 June 2020

Rank VI Israel | Premium | Golden Eagles
Merkava Mk.2D Pack
BT-7
ussr_bt_7_1937.png
BT-7
AB RB SB
1.3 1.3 1.3
Class:
Research:2 900 Specs-Card-Exp.png
Purchase:700 Specs-Card-Lion.png
Show in game

Description

GarageImage BT-7.jpg


The BT-7 mod. 1937 is a rank I Soviet light tank with a battle rating of 1.3 (AB/RB/SB). It was introduced during the Closed Beta Test for Ground Forces before Update 1.41. Like the BT-5, but with improved front armour, it is fast and has an adequate 45 mm cannon able to destroy opposing tanks.

The BT-7 is a fast tank with relatively thin armour. It can be useful to flank and hit the side armour of enemy tanks, taking advantage of its very high top speed. The armour is very well angled at certain points, however being as thin as it is, don't count on it to protect you very well; your speed can be your best defence, so move fast and try to zig-zag a bit to make yourself a more difficult target for tanks farther away (not too much though, or you'll bleed off too much speed).

The BT-7 surprises with its Christie suspension. Closer to a race-car than a tank, this lightning on tracks is fun to drive, but not particularly easy. With its high top speed and lightweight, this tank will drift in turns. For maximum control in turns, reduce throttle beforehand and the only tip/nudge the turn-keys. It needs some time to get used to, however, it does prepare you for the T-34s break-turns.

Off-road behaviour is good and the aforementioned drifts aren't as extreme as on city-roads. Top speed is not really reduced as well, making the BT-7 one of the fastest early tanks due to its very wide tracks, something both the Light tank M2 and Panzer II miss.

The crew compartment is very small and only inhabited by the driver, commander and another crew member. The latter has to perform the tasks of the gunner and radio-man. "Not getting shot at" is the best advice for the crew to survive.

The BT-7 was the last of the BT series of Soviet cavalry tanks that were produced in large numbers between 1935 and 1940. They were lightly armoured, but reasonably well-armed for their time, and had much better mobility than other contemporary tank designs. The BT tanks were known by the nickname Betka from the acronym, or its diminutive, Betushka.

The BT-7 tank's successor would be the famous T-34 medium tank, introduced in 1940, which would replace all of the Soviet fast tanks, infantry tanks, and medium tanks then in service.

General info

Survivability and armour

BT-7 Firing its cannon

With 20 mm armour on the front and with all that inclination on the armour panels, this vehicle had decent protection. With 5 mm less armour on the turret, that's the vulnerability of the tank, especially on the turret's backside, where the ammo is stored. However, you only get 3 crew members in the vehicle, making the tank vulnerable to any "crew knocked out" scenarios. One strong point for the vehicle is that you have speed, and the trade-off of speed vs. armour can come in handy especially travelling around 59 km/h (It's very hard to reach 60 km/h) ensures any enemy SPG will be very unlikely to hit close to you!

Armour type:

  • Rolled homogeneous armour
Armour Front Sides Rear Roof
Hull 15 mm (62°) Front glacis
20 mm (19°) Driver's hatch
20 mm (5-52°) Lower hull
20 mm Front
15 mm Rear
10 mm (55°) Top
13 mm (16-58°) Bottom
10 mm
Turret 15 mm (7-53°) Gun mantlet
15 mm (13-14°) Turret front
15 mm (13°) Front
13 mm (10°) Rear
13 mm (15°) 10 mm

Notes

  • Tracks and suspension wheel are both 15 mm thick.

Mobility

BT-7 driving through "Advance To The Rhine"
Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 55 11 13.7 620 763 45.26 55.69
Realistic 50 10 354 400 25.84 29.2

Like its predecessor the BT-5, the BT-7 has competitive mobility, easily being able to reach capture points before most other tanks or get to competitive camping spots before anyone else, the 400 hp engine gives the BT-7 29.2 hp per ton, which also allows the BT-7 to scale hills and smaller obstacles with relative ease.

Armaments

Main armament

Main article: 20-K (45 mm)

The 20-K is the typical Soviet rank I gun. Players should get used to it since it will be your main armament up until rank II. The APHEBC round has a good amount of HE filler, meaning penetrating shells will do good damage, sometimes even one-shotting enemies. At much longer ranges, shells begin to lose penetration and accuracy but on most common low tier maps this is not a problem due to the smaller map sizes.

45 mm 20-K Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Stock Full Expert Aced
Arcade 188 -6°/+25° ±180° N/A 15.23 21.08 25.60 28.31 30.12 3.77 3.33 3.07 2.90
Realistic 9.52 11.20 13.60 15.04 16.00

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
BR-240 APHEBC 70 68 59 50 42 35
BR-240SP AP 73 71 62 52 44 37
Shell details
Ammunition Type of
warhead
Velocity
(m/s)
Projectile
Mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Explosive Mass
(TNT equivalent) (g)
Ricochet
0% 50% 100%
BR-240 APHEBC 760 1.43 1.2 9.0 29.3 48° 63° 71°
BR-240SP AP 757 1.43 N/A N/A N/A 47° 60° 65°

Ammo racks

Full
ammo
1st
rack empty
2nd
rack empty
3rd
rack empty
4th
rack empty
5th
rack empty
6th
rack empty
7th
rack empty
8th
rack empty
9th
rack empty
10th
rack empty
11th
rack empty
12th
rack empty
13th
rack empty
Visual
discrepancy
188 174 (+14) 162 (+24) 147 (+41) 135 (+53) 123 (+65) 108 (+80) 89 (+99) 73 (+115) 57 (+131) 41 (+147) 25 (+163) 13 (+175) 1 (+187) No
Ammo racks of the BT-7

Turret empty: 147 (+41); Side racks empty: 89 (+99)

Machine guns

Main article: DT (7.62 mm)
7.62 mm DT
Mount Capacity
(Belt capacity)
Rate of fire
(shots/minute)
Vertical
guidance
Horizontal
guidance
Coaxial 1,890 (63) 600 N/A N/A

Usage in battles

There are two common schools of thought when driving the BT-7, firstly rushing a capture point using your better than average mobility to get there before other friendly or enemy tanks. This tactic can help to gain points early in the game and perhaps even a few kills as enemy tanks try to take the point that you captured, but your fairly thin armour will leave you at risk of being crippled and destroyed by enemy fire unless you retreat to cover or get backup from friendly vehicles. A second school of thought is not charge right into the combat, but wait a while to see how the battle develops - observe where and how many enemy tanks go, maybe fire a few shots from a distance. Use your great mobility to get to the best positions and flank the enemy, from these positions you could snipe into the main battler area to damage and kill enemy vehicles. You could then decide to use the BT-7's mobility to charge at lonely opponents, which at close range have no chance of keeping their guns pointed at you as you can essentially drive circles around them. Keep in mind that charging into more than 1 opponent is usually a quick end as it is very hard to not get hit from either of them at the same time. There is basically paper armour on BT-7 to stop anything other than machine gun fire, overall speed is key, being mobile and changing your position often will be a great way to avoid enemy fire and potential revenge kill attempts.

If you lose one of your 3 crew members it would be advisable to head to a friendly capture point to use your crew replenishment as your vehicle needs 2 members to operate, and having a 'spare' crew member can come in handy.

Enemies worth noting:

  • Pz.IIs, Flakpanzer I: Although not as fast as the BT-7, the Pz.IIs still have an average speed of around 40 km/h. Also they are equipped with a deadly 20 mm autocannon that will punch holes on the BT-7 with ease, and their rate of fire can quickly kill multiple crew. The BT-7 has thin armour protecting only 3 crew, making it extremely vulnerable to those autocannons. Try to finish them before they shoot at you.
  • Sd.Kfz.234 series: These wheeled vehicles all have scary on-road speed of more than 60 km/h, so in any map with roads connecting to the points they can always get there first and set up an ambush. However, these vehicles are wheeled meaning they cannot turn in-place, they are rather sluggish when trying to turn, and they have either slow turret traverse or no turret at all, so the player can use this to their advantage. Wiggle/circle around them to avoid their guns and force them to turn, then aim carefully and immobilise them. Note that the DT machine gun on the BT-7 only has 10 mm penetration at most, making it almost impossible to go through their armour and kill any crew, so don't think of destroying these wheeled vehicles with the MG.
  • M8 GreyhoundM3 Stuarts: These vehicles can be equally fast, and the M8 can outrun the BT-7 if it's travelling on road, allowing them to get to the point before the BT-7 does. Therefore, if America is on the other side the player might want to change their tactics and not rush the point since low tier battles are always filled with fast tanks. The M8 has a roof-mounted .50 cal MG which easily tears the BT-7's armour apart and kills the crew inside. Also most of them have a vertical stabiliser that works at low speed, so avoid firing on the move with them.
  • B1 bis: A heavily armoured tank for its BR, but do not panic when you see it. Don't fire at a distance unless you are directly aiming at its side armour. The best option is to try and get as close to it as possible (point-blank range is ideal) and shoot straight at its side. However sometimes due to a variety of reasons the player might be unable to flank it and has to face it frontally. If that is the case, shoot the rather vertical driver's compartment and there's a great chance of penetration, killing the driver and the commander (which is also the gunner for the turret). Or, shoot between the two guns on the turret to kill the commander/gunner. Or, shoot at the near-vertical part of the curved gun mantlet of the big hull-mounted gun.

Modules

Tier Mobility Protection Firepower
I Tracks Parts Horizontal Drive BR-240SP
II Suspension Brake System FPE Adjustment of Fire
III Filters Crew Replenishment Elevation Mechanism
IV Transmission Engine Artillery Support

Pros and cons

Pros:

  • Deadly firepower at its BR: high penetration of up to 70 mm, with the 29 g TNT it can frontally one-shot most tanks like Pz.IIChi-Ha or M3 Stuart; its firepower is effective even in high tier battles, if aiming at the right spot
  • One of the fastest tanks in the game, great acceleration and overall mobility makes it a nice point-capper, flanker and climber- can outrun the commonly seen M3 Stuart on road
  • 3-4 second reload time is quick enough to destroy opponents it cannot one-shot, like Pz.IV C and LVT(A) series
  • Adequate reverse speed of -10 km/h allows it to quickly retreat from danger when there is no time to turn around
  • Small and low profile allows it to easily hide behind cover or bushes

Cons:

  • Poor survivability: non-existent armour on all sides plus the closely packed crew makes it vulnerable to autocannons (Pz.IIFlakpanzer I), heavy MG (M13 MGMC) and even solid shells
  • Turret and hull traverse is rather slow, meaning it may not be able to keep track of fast targets- this is also a disadvantage in a close quarters duel, as other light tanks like M3 can turn way faster
  • Although fast, it is still slower than the Sd.Kfz.234 series on road.
  • Gun depression of only -6 degrees (worse than previous BT-5) means it cannot effectively fight in hills
  • Fuel tanks and ammo are scattered inside and are prone to detonation upon being hit

History

Development

The success of the BT light tanks in Soviet service prompted additional upgrades and other developmental projects done on the design to increase its service life. The development led to the final model of the BT light tank series, the BT-7. The tank differed from the older BT-5 tank with a welded hull, redesigned hull front, and a new engine in the Model 1935 version. The Model 1937 version of the BT-7 added a redesigned turret that featured sloping armour.

The tank initially had a canted-ellipse shaped turret mounting the main gun and coaxial machine guns with the focus of allowing the tank to mount different tanks without changing the whole design, which led to the development of two main kinds of BT-7s, the normal variant with a 45 mm 20K gun for anti-armour and a artillery variant called the BT-7A which mounted a 76.2 mm KT-26 howitzer for anti-infantry. The tank was redesigned before it entered production by using the BT-5 turret instead with the main gun and coaxial machine gun still attached, though the concept of swapping to different guns was still in development for the tank. A radio was also installed on the turret as well. The tank had a three-man crew, the commander/gunner and loader in the turret, and the driver in the front. Production started in 1935 but was redesigned in 1937 with a new conical turret that allowed more ammunition to be stored and a machine gun on the rear of the turret. The BT-7 mod. 1937 also had improvements on the drive wheels, gearbox, and tracks by 1938. The BT-7 went on to be produced from 1935 to 1940 for a total unit production of between 2,700 to 5,300 tanks.

Combat usage

The BT-7 served alongside its older counterpart BT-5 tanks. The BT light tanks were meant to be a cavalry tank, and at the time of their introduction, they were considered some of the finest tanks against other countries' tanks. They had great mobility of all available tanks, and it's 45 mm gun could perform very well in combat. The only drawbacks of the design were its light armour and its gasoline engine, which caused the design to be rather flammable to improvised incendiary weapons. The BT-7's most notable combat service came against the Japanese at Khalkhin Gol. The tactics of Soviet Marshal Georgi Zhukov and the performance of his BT-5 and BT-7 tanks led to a decisive victory. It was during this battle that the BT tanks tendency to catch fire was found, but its performance was positive against the inferior Japanese armoured forces.

The BT-7 next combat use was during the opening stages of Operation Barbarossa when Nazi Germany invades the Soviet Union. The superior German tanks Panzer III and Panzer IV was able to easily take out these lightly armoured tanks. Reports note that about 2,000 BT-7 tanks were lost in the first 12 months alone against the German forces, with hundreds broken down from low maintenance and were abandoned. Despite their inferiority, the Soviets continued to produce and field them among armour and mechanized units to boost their operational capacity, though most were kept away from the front lines due to their inadequacy. The BT-7 would finally see its service again in Soviet invasion of Japanese-controlled Manchuria. The Soviets fielded the BT-7 and other tanks in its inventory against the inferior Japanese forces in Manchuria, where it proved very effective against the more lightly armoured Japanese tanks employed. The BT series were all retired after the end of World War II due to their obsolete design as an inter-war period tank design.

Legacy

Perhaps the most important impact the BT light tanks series was that it kick-started the development of the T-34 medium tank, which would go on as the most produced tank of World War II. A new design team was formed in 1937 at the KhPZ factory, where they built prototypes utilizing the more armour and a heavier gun onto the design, which was called the A-32 and was approved for production as the T-34 tank. The BT tanks also serve as the basis of support vehicles such as the BT-7A artillery tan, BT-7TU command tank, OP-7 flamethrower tank, and even the TT-BT-7 remote-controlled tank. An attempt in 1940 also had the BT-7 up-armoured with hinged homogeneous armour, which added five tons to the design weight. These vehicles are not known to have seen service in combat units.


Msg-info.png The BT-7 also holds the record for the furthest jump in a tank, at 42 metres, set in 1936.

In-game description

In the second half of 1937, the BT-7 tank was mass-produced with a conical turret, a three-speed gearbox and strengthened suspension. In comparison to the BT-7 Mod. 1935, the tank's weaponry became more powerful due to the inclusion of a DT machine gun in the turret. Its ammunition capacity was increased by 44 and totalled 188 rounds in the battle vehicles and 145 rounds in the command vehicles equipped with a radio set. Some of the tanks were equipped with an anti-aircraft gun.

The unit command vehicles were equipped with a 71-TK-1 radio set with a hand-rail antenna, and later with a rod antenna. To allow the vehicle to fire its cannon and coaxial machine gun at night, it was equipped with two special projector headlights. Over the course of its modernisation, the thickness of its frontal hull armour reached 22 mm. The turret's armour was also strengthened using vertically sloping armour plates. Its combat-loaded weight grew to 13,925 kg. Factory No. 183 alone manufactured 4,727 tanks of this series.

The BT-7 underwent its trial by fire in the Khalkhyn Gol river region as part of the 6th and 11th tank brigades. In the process, the latter undertook a hurried 500 km trek to the scene of the conflict. On the whole, the tanks gained a good reputation, but their drawbacks were noted as well: they were difficult to drive, which meant they required highly trained drivers, and they had insufficient armour and poor communication equipment. All these flaws were confirmed in the Poland Campaign of September 1939 and in the Winter War with Finland.

With appropriate tactics and a well-trained crew, the BT-7 could successfully oppose all types of German tanks at the beginning of the war, being inferior to them only in armour.

BT-7 tanks participated in combat operations on the Soviet-German front right up until 1944, and in 1945 they served in the war with Japan. A few captured tanks served in the Finnish army until the beginning of the 50s.

Media

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.


USSR light tanks
T-26  T-26 · T-26 (1st Gv.T.Br.) · T-26-4 · T-26E
BT  BT-5 · RBT-5 · BT-7 · BT-7 TD · BT-7M · BT-7A (F-32)
T-50  T-126 · T-50
T-70  T-70 · T-80
PT-76  PT-76B · PT-76-57 · Object 906
BMP  BMP-1 · BMP-2 · BMP-2M · BMP-3
BMD  BMD-4
2S25  2S25 · 2S25M
Wheeled  BA-11 · BTR-80A
Other  T-60 · Object 685 · 2S38
China  ▂Type 62