BT-7
| Revision as of 02:08, 3 September 2013 | Revision as of 13:11, 3 November 2013 View range up to 300 | |||
| Line 17: | Line 17: | |||
| * Paper-thin armor and below average HP. | * Paper-thin armor and below average HP. | |||
| * Disappointing damage and penetration on all weapons. | * Disappointing damage and penetration on all weapons. | |||
| ? | + | |||
| |InTheGame_performance= | |InTheGame_performance= | |||
Revision as of 13:11, 3 November 2013
<value_unset_error>
Mouse over "
[Client Values; Actual values in
0  Cost |
| health Hit Points |
| 0/0Expression error: Unexpected < operator./Expression error: Unrecognized word "unable". t Weight Limit |
| engine Engine Power |
| / km/h Speed Limit |
| traverse Traverse |
| Expression error: Unexpected < operator.Expression error: Unexpected < operator. hp/t Power/Wt Ratio |
| NoNo Pivot |
| // mm Hull Armor |
| //Unable to match configuration for query: turret:bt-7::top|armorturretfront/Unable to match configuration for query: turret:bt-7::top|armorturretside/Unable to match configuration for query: turret:bt-7::top|armorturretback mm Turret Armor |
0/0/0
0/0/0 Shell Cost |
| //Unable to match configuration for query: gun:bt-7::top|damage1/Unable to match configuration for query: gun:bt-7::top|damage2/Unable to match configuration for query: gun:bt-7::top|damage3 HP Damage |
| //Unable to match configuration for query: gun:bt-7::top|penetration1/Unable to match configuration for query: gun:bt-7::top|penetration2/Unable to match configuration for query: gun:bt-7::top|penetration3 mm Penetration |
|
Expression error: Unrecognized word "unable". r/m ▲
Expression error: Unrecognized word "unable". r/m Magazine-fed Gun ▲ Rate of Fire Magazine-fed Gun |
|
Expression error: Unrecognized word "unable". ▲
Magazine-fed Gun
▼
Magazine-fed Gun
▲
Expression error: Unrecognized word "unable". Magazine-fed Gun
▲
Magazine-fed Gun
▼
Magazine-fed Gun
▲ Damage Per Minute Magazine-fed Gun
|
|
Expression error: Unrecognized word "unable". m ▲
Expression error: Unrecognized word "unable". m With 50% Crew: Expression error: Unexpected < operator. m ▲ Accuracy With 50% Crew: Expression error: Unexpected < operator. m |
|
Expression error: Unrecognized word "unable". s ▲
Expression error: Unrecognized word "unable". s With 50% Crew: Expression error: Unexpected < operator. s ▲ Aim time With 50% Crew: Expression error: Unexpected < operator. s |
| Unable to match configuration for query: turret:bt-7::stock|turrettraverseUnable to match configuration for query: turret:bt-7::top|turrettraverse deg/s Turret Traverse |
| 0° Gun Arc |
| -°/+°-Unable to match configuration for query: gun:bt-7::top|depression°/+Unable to match configuration for query: gun:bt-7::top|elevation° Elevation Arc |
| Unable to match configuration for query: gun:bt-7::stock|maxammoUnable to match configuration for query: gun:bt-7::top|maxammo rounds Ammo Capacity |
| Expression error: Unrecognized word "unable".Expression error: Unrecognized word "unable". % Chance of Fire |
|
Unable to match configuration for query: turret:bt-7::stock|viewrange m ▲
Unable to match configuration for query: turret:bt-7::top|viewrange m With 50% Crew: Expression error: Unexpected < operator. m ▲ View Range With 50% Crew: Expression error: Unexpected < operator. m |
|
Unable to match configuration for query: radio:bt-7::stock|distance m ▲
Unable to match configuration for query: radio:bt-7::top|distance m With 50% Crew: Expression error: Unexpected < operator. m ▲ Signal Range With 50% Crew: Expression error: Unexpected < operator. m |
0
The <value_unset_error> is a [[|]] tier .
<value_unset_error>
The BT-7 is a direct upgrade of the BT-2, offering even more speed and acceleration, more HP, and much better turning properties. It is one of the fastest tanks in the game, in exchange for very poor armor and relatively weak armament.
The <value_unset_error> marks the end of its line.
Modules / Available Equipment and Consumables
Modules
Guns
| Tier | Gun | Penetration (mm) |
Damage (HP) |
Rate of fire (rounds/minute) |
Dispersion (m/100m) |
Aiming time (s) |
Weight (kg) |
Price (  )
| |
|---|---|---|---|---|---|---|---|---|---|
| <value_unset_error> | 0 | 0 | 0 | 0 |
Engines
| Tier | Engine | Engine Power (hp) |
Chance of Fire on Impact (%) |
Weight (kg) |
Price ( )
| |
|---|---|---|---|---|---|---|
| <value_unset_error> | 0 | 0 |
Suspensions
| Tier | Suspension | Load Limit (т) |
Traverse Speed (gr/sec) |
Rmin | Weight (kg) |
Price ( )
| |
|---|---|---|---|---|---|---|---|
| <value_unset_error> | 0 | 0 |
Radios
| Tier | Radio | Signal Range (m) |
Weight (kg) |
Price ( )
| |
|---|---|---|---|---|---|
| <value_unset_error> | 0 |
Compatible Equipment
Compatible Consumables
Player Opinion
Pros and Cons
Pros:
- Excellent speed and acceleration.
- Good maneuverability.
- Low profile and good camouflage values.
- ZiS-9 gun has good accuracy when on the move
Cons:
- Paper-thin armor and below average HP.
- Disappointing damage and penetration on all weapons.
Performance
The BT-7 is basically a slightly faster BT-2 with slightly more HP that now faces up to tanks up to Tier 5. It has a choice of three weapons, all of which are carried over from the BT-2. The 23 mm VYa has decent damage output and is particularly good for running-and-gunning while on the move, but is useless against most Tier 4 and Tier 5 tanks. The 45 mm 20K has mediocre accuracy, fairly good penetration, and good damage. The 37 mm ZiS-19 offers the best penetration of all the weapons, and has excellent accuracy but somewhat disappointing damage output.
The BT-7 excels as a raider/breakthrough exploitation tank, the role for which it was originally designed. Once it has broken through the enemy's front line, it can hunt down enemy artillery and, in skilled hands, cause a great amount of disruption. The BT-7 works particularly well in combination with other BT tanks and the T-50.
While adequate enough to allow the BT-7 to act as a battle tank in Tier 3 or 4 matches, all the weapons have insufficient penetration to deal with heavier tanks that the BT-7 sometimes faces in Tier 5. In such matches, the BT-7 is best used as a support sniper or flanker, not drawing any unnecessary attention to itself. While the BT-7 is quite capable of pulling off the circling technique against heavier tanks, this should only be used as a last resort.
The BT-7's great speed and good camouflage also allows it to be used in the scouting role. Its superb speed will allow it to take up forward spotting positions quickly after the start of the game. However, the BT-7's view range is poor, though this can be remedied to an extent with the use of Binoculars, Coated Optics, and the Recon or Situational Awareness skills. The BT-7 can also be used as a counter-scout, as it has the speed and sufficient agility and firepower to intercept most enemy light tanks without too much trouble.
Crew Skills
- Camouflage as the first skill on all the crew members is a good choice, helping to offset the BT-7's poor vision range, and is invaluable if the BT-7 is required to take up the scouting role. Repairs is not very useful, as getting tracked or having the engine damaged on the BT-7 without a repair kit is almost always fatal.
- A more specialized set of first skills would be Situational Awareness (Commander/Radio Operator), Snap Shot (Gunner/Loader), Smooth Ride (Driver). Situational Awareness provides a bigger view range bonus than Recon, and is generally superior. Snap Shot and Smooth Ride combined act like a Vertical Stabilizer (which the BT-7 does not have access to), reducing the accuracy penalties incurred while moving and rotating the turret. Due to its speed, the BT-7 has higher accuracy penalties while moving than most tanks, and this can be important in helping the BT-7 get its shot off first. Off-Road Driving is also a viable option for the driver to further augment the BT-7's excellent mobility.
- Upon reaching 100% on the first skills, dropping the commander's skill for Sixth Sense is an excellent option. Deadeye is a good perk for the gunner, especially when targeting weakspots like engines and ammunition racks. The gunner also acts as the loader, but the loader only has access to perks which are not particularly useful for the BT-7: Safe Stowage increases the HP of the ammunition rack, but the BT-7's best defence is to not take a hit at all, while the BT-7 will very rarely find itself at under 10% of its HP so that the Adrenaline Rush perk activates.
- Brothers-in-Arms is a good perk to have on any tank, but requires all crew members to have it at 100% before it works. The bonus to crew skills is particularly noticeable when combined with Improved Ventilation.
Early Research
- All the BT-7's guns carry over from the BT-2, but the 37 mm ZiS-19 needs the conical turret. Both the 23 mm VYa and 45 mm 20K are viable on the BT-7, depending on the preferred playstyle.
- The 12LL radio can be researched on the SU-26, and should be mounted if available.
- The first priority should be the M-17F engine, which dramatically increases the BT-7's performance.
- The BT-7 suspension should be researched next for increased hull traverse speed and load limit
- The BT-7 conical turret should be researched next, finally allowing the ZiS-19 to be mounted.
- Finally, the V-2 engine is required to unlock the A-20, but it is inadvisable to equip it; it provides 20 hp less than the M-17F and also weighs 140 kg more, significantly reducing performance. The only benefit it has over the M-17F is a 5% less chance of catching fire when hit.
Suggested Equipment
Gallery
Historical Info
The BT-7 was the last of the BT tank series of Soviet cavalry tanks that were produced in large numbers between 1935 and 1940. They were lightly armored, 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. BT (Russian: БТ) stands for fast tank (Быстроходный танк, Bystrokhodny tank). The successor of the BT-7 Tank 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.
Development history
The first prototypes of the BT-7 had a distinctive canted-ellipse shaped turret mounting both the main gun and a coaxial machine-gun. The specification also called for the project to allow for installation without any significant change to the framework of new guns: the 76 mm CT or PS-3 main gun (a short-barreled howitzer) and the 45 mm 20K model 1932/38, a long-barreled, high-velocity gun useful against tanks, but less effective than the 76 mm gun against infantry.
In the rear of the turret, there was housed a rotating drum-type magazine for 18 76 mm shells or a radio station. The prototype underwent an extensive testing program in the summer and autumn of 1934. As a result of this testing, it was felt that a machine-gun was unnecessary on a tank with a 3-man crew, especially as it made the assembly of the turret more complicated.
Therefore, in early 1935, the tank went into production with a simpler design, incorporating the turret from the BT-5. (However, the idea of wheeled/tracked vehicle with a 76 mm cannon was not abandoned and the plant was commissioned to develop a new BT-7 turret from the turret of the T-26-4). In the production model, a cylindrical turret housed a 45 mm 20K gun with a DT-model machine-gun. On some of the tanks, a model 71-TC radio with frame antenna was installed. The crew consisted of three men: the commander (who also served as the gunner), the loader, and the driver. In 1937, the company launched production of the BT-7 with a conical turret. Main armament remained the same, but the ammunition was increased to 44 rounds. All serving tanks now installed the DT machine gun in the rear niche. For the firing of the gun and coaxial machine gun at night, the tank was equipped with two special projector-type headlamps, and a mask placed on the gun. Subsequently, these Lights were retrofitted to earlier models of the tank. Improvements were also made to the drive wheels, caterpillar tracks, and gearbox by 1938. In parallel with the main modification, 154 BT-7A artillery tanks were produced between 1936 and 1938, fitted with a larger turret and a 76 mm CT-type gun, with 50 rounds of ammunition (40 in a tank with a portable radio). In 1938, four experimental BT-8 tanks mounted with V-2 diesel engines were produced. After comparative tests of the BT-7 and BT-8, the diesel tanks were put into production in 1940 (under the designation BT-7M) with the powerplants being produced in a separate plant of the Voroshilovets factory to ensure supply. From December 1939, the BT-7A went into production with some minor modifications; additional bracing for rigidity, a manhole underneath, and a smaller air filter. The diesel-powered tanks showed much-reduced fuel costs, and the petrol tanks were soon placed into reserve.
Several experimental tanks were conceived based on the BT series, for example: the wheeled BT-IC, designed by NF Tsyganova, a platoon commander in the 4th Armoured Regiment of the Ukraine Military District and self-taught designer. The type successfully passed field tests, but was not ordered in bulk. Another Tsyganova design was the S-2 "Turtle", with a new design of hull and turret. There was also the command tank CBT-7 with a fixed turret, the OT-7 mounting aflamethrower, the HBT-7 designed to protect from toxic contamination and lay smokescreens, the PBT bridgelayer, and the TTBT-7 and Thubten-7 radio-controlled tanks (known at the time as Teletanki). Shortly before Operation Barbarossa, the BT-7 underwent an up-armor program. In 1940, Mariupol Ilyich Iron and Steel Works produced 50 sets of hinged homogeneous armor for the BT-7M, which increased the weight of the test tank to 18 tons. On the installation of these kits to military units, unfortunately, nothing is known.
Combat history
Between 1935 and 1940, between 2700 to 5328 BT-7 tanks of all modifications (except BT-7A) were built. They were operated by the armored and mechanized forces of the Red Army for almost the entire war. Over 2000 BT-7 series tanks were lost in the first 12 months on the Eastern Front. Hundreds had been immobilized even before the invasion by poor maintenance, and had to be abandoned as all Soviet forces withdrew eastward. The survivors fought against the Wehrmacht in numbers gradually reduced by attrition, until superseded by more modern types in 1944. The BT-7 series continued in use elsewhere, including being used against Japanese forces (Battle of Khalkhyn Gol and Manchurian Strategic Offensive Operation) in Manchuria in 1945.
| BT-2 | BT-5 | BT-7 | BT-7A | BT-7M (BT-8) | |
|---|---|---|---|---|---|
| Number built | 620 | 2,108 | 4,965 | 154 | 790 |
| crew | 3 | 3 | 3 | 3 | 3 |
| weight | 10.2 t | 11.5 t | 14 t | 14.5 t | 14.7 t |
| length | 5.58 m | 5.58 m | 5.66 m | 5.66 m | 5.66 m |
| width | 2.23 m | 2.23 m | 2.29 m | 2.29 m | 2.29 m |
| height | 2.20 m | 2.25 m | 2.42 m | 2.52 m | 2.42 m |
| armour | 6–13 mm | 6–13 mm | 6–13 mm | 6–13 mm | 6–22 mm |
| main gun | 37 mm Model 30 |
45 mm Model 32 |
45 mm Model 35 |
76.2mm Model 27/32 |
45 mm Model 38 |
| main gun ammunition |
96 rounds | 115 rouds | 146 rounds | 50 rounds | 146 rounds |
| machine guns | DT | DT | DT | 2×DT | 3×DT |
| engine power model |
400 hp Liberty |
400 hp M-5 |
500 hp M-17T |
500 hp M-17T |
450 hp V-2 |
| fuel | 400 l gasoline |
360 l gasoline |
620 l gasoline |
620 l gasoline |
620+170 l diesel |
| road speed | 100 km/h (62 mph) | 72 km/h (45 mph) | 86 km/h (53 mph) | 86 km/h (53 mph) | 86 km/h (53 mph) |
| power:weight | 39 hp/t | 35 hp/t | 36 hp/t | 34 hp/t | 31 hp/t |
| road range | 300 km | 200 km | 250 km | 250 km | 700 km |
| tactical range | 100 km | 90 km | 120 km | 120 km | 400 km |
Historical Gallery
Sources and External Links
| Light Tanks | |
| Medium Tanks | |
| Heavy Tanks | |
| Tank Destroyers | |
| Self-Propelled Artillery |
| USA | |
| UK | |
| Germany | |
| France | |
| USSR | |
| China | |
| Japan | |
| Czechoslovakia | |
| Sweden | |
| Italy | |
| Poland |
