Difference between revisions of "Object 685"

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{{Specs-Card|code=ussr_object_685}}
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{{Specs-Card
 +
|code=ussr_object_685
 +
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
 +
}}
  
 
== Description ==
 
== Description ==
−
<!--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.-->
+
<!-- ''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]]
+
The '''{{Specs|name}}''' was a proposed replacement for the PT-76. It competed with two other designs, namely Object 788 and Object 934. The project's notable requirements were to develop a vehicle with a maximum combat weight of 15 tons, armed with a rifled 100-mm gun, an 9K111 "Fagot" anti-tank missile system, and a 12.7 mm machine gun. The project's protection requirements included anti-nuclear features like automatic sealing and air filtration capabilities, and the ability to withstand up to 23 mm AP rounds. Object 788 was disqualified for not including the 9K111 "Fagot" anti-tank missile system, trench-digging equipment, and a water-jet propulsion system. However, both Object 934 and {{Specs|name}} managed to pass the initial design evaluation, suggesting that they showed promise despite lacking certain components. It is likely that these designs were later taken into consideration for modifications and improvements to incorporate the missing criteria. Nevertheless, the production was eventually abandoned because they were unable to garner enough interest to continue. Still, later Soviet AFV designs made extensive use of many of the components and design solutions found in Object 934 and {{Specs|name}}, showing that their potential was recognized and put to good use.
−
{{break}}-->
+
 
−
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Soviet light tank {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]].
+
The {{Specs|name}} was introduced in [[Update 1.91 "Night Vision"]]. It is a powerful and versatile vehicle that is well-suited for flanking. It features excellent forward mobility, a 6-second reload cannon, and a sufficient 3BM25 shell. However, its main drawbacks are its subpar survivability, lack of thermal sights, and poor gun depression. Even despite that, the {{Specs|name}} remains a good choice for players who prefer a more careful yet aggressive and fast-paced playstyle.
  
 
== 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?''
+
{{Specs-Tank-Armour}}
 +
<!-- ''Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpful for survival in combat? If necessary use a visual template to indicate the most secure and weak zones of the armour.'' -->
 +
[[File:Obj685 xray.png|right|thumb|Object 685 X-ray view in hangar]]
 +
 
 +
'''Armour type:'''
 +
 
 +
* Alloy ABT-101 (hull, turret, cupola)
  
−
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''
+
{| class="wikitable"
 +
|-
 +
! Armour !! Front (Slope angle) !! Sides !! Rear !! Roof
 +
|-
 +
| Hull || 54 mm || 16 mm || 5 mm || 6 mm
 +
|-
 +
| Turret || 19 mm || 16 mm || 16 mm || 8 mm
 +
|}
 +
 
 +
'''Notes:'''
 +
 
 +
* Suspension wheels are 10 mm thick and tracks are 20 mm thick
 +
* The armour on the Object 685 is Alloy ABT-101. The armour values in the chart are displayed in rolled homogeneous armour equivalence.
 +
 
 +
The Object 685 is a very lightly armoured vehicle. The alloy may at first appear to be somewhat thick, but it is much less effective than rolled homogeneous armour at stopping rounds. The Object 685 can be killed by almost anything, with .50 calibre machine guns able to penetrate even parts of the front armour at close range. Additionally, the Object 685 is vulnerable to overpressure damage. The commander and gunner are somewhat far apart, but the Object has only 3 crew, so survivability is not particularly impressive. Generally, Object 685 drivers should not rely on their armour in any situation.
  
 
=== 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.''
+
{{Specs-Tank-Mobility}}
 +
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
 +
 
 +
{{tankMobility|abMinHp=705|rbMinHp=402}}
 +
 
 +
Mobility wise, the Object 685 can be considered as a slightly heavier [[Object 906]] compensated by a noticeable stronger engine and a different gear box (note the missing reverse gearbox). It is not slow but is not the fastest light tank at the battle-rating. When downtiered, it is able to be faster than most tracked vehicles (most of them reach as most 65 km/h while this can reach more than 70 km/h) with exception of the [[Rooikat 105]], [[Rooikat Mk.1D]] and [[Radkampfwagen 90]]. It's suspension is a relatively soft suspension, meaning it will not damp as much in rough terrain but due to its thin tracks, the surface the tracks have on the floor make it be relatively slow on snow and sand (but faster than many tracked vehicles). It is fully amphibious which makes the Object 685 capable of crossing water bodies which can give an advantage (Eastern Europe river for example) but the speed while on water is lacklustre.
 +
 
 +
=== Modifications and economy ===
 +
{{Specs-Economy}}
  
 
== Armaments ==
 
== Armaments ==
 +
{{Specs-Tank-Armaments}}
 
=== Main armament ===
 
=== Main armament ===
 +
{{Specs-Tank-Weapon|1}}
 +
<!-- ''Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibility of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: <code><nowiki>{{main|Name of the weapon}}</nowiki></code>. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.'' -->
 
{{main|2A48 (100 mm)}}
 
{{main|2A48 (100 mm)}}
  
−
''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.''
+
The Object 685 has the same ballistics as the [[D-10T2S (100 mm)|D-10T2S]] 100 mm cannon even sharing the same ammunition. Thus, the use of the gun should be the same as the [[T-55A]]. The gun is capable of destroying all enemy vehicles it faces from the front (with exception of the [[Maus]] glacis) with its powerful APFSDS shell. Despite not having the most powerful dart at the battle rating, the 6 second reload of the autoloader makes the Object 685 a formidable quick firing tank, capable of destroying multiple enemies with relative speed.
 +
 
 +
'''Important: ''in order to let the autoloader load, the gunner must be alive'''''
 +
 
 +
{| class="wikitable" style="text-align:center" width="100%"
 +
|-
 +
! colspan="5" | [[2A48 (100 mm)|100 mm 2A48]] || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
 +
|-
 +
! Mode !! Capacity !! Vertical !! Horizontal !! Stabilizer
 +
! Stock !! Upgraded !! Full !! Expert !! Aced
 +
!Autoloader
 +
|-
 +
! ''Arcade''
 +
| rowspan="2" | 40 || rowspan="2" | -4°/+17° || rowspan="2" | ±180° || rowspan="2" | Two-plane || 19.0 || 26.4 || 32.0 || 35.4 || 37.7 || rowspan="2" | 6.00
 +
|-
 +
! ''Realistic''
 +
| 11.9 || 14.0 || 17.0 || 18.8 || 20.0
 +
|-
 +
|}
 +
 
 +
==== Ammunition ====
 +
{{:2A48 (100 mm)/Ammunition|3BK17M, 3D3, BR-412D, 3BM25, OF-412}}
 +
 
 +
==== [[Ammo racks]] ====
 +
[[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]]
 +
<!-- '''Last updated: 1.101.1.16''' -->
 +
{| class="wikitable" style="text-align:center"
 +
|-
 +
! Full<br>ammo
 +
! 1st<br>rack empty
 +
! 2nd<br>rack empty
 +
! 3rd<br>rack empty
 +
! 4th<br>rack empty
 +
! 5th<br>rack empty
 +
! 6th<br>rack empty
 +
! Visual<br>discrepancy
 +
|-
 +
| '''40''' || 29&nbsp;''(+11)'' || 21&nbsp;''(+19)'' || 17&nbsp;''(+23)'' || 13&nbsp;''(+27)'' || 7&nbsp;''(+33)'' || 1&nbsp;''(+39)'' || No
 +
|-
 +
|}
 +
'''Note''':
 +
 
 +
* Racks 5 and 6 are first-stage ammo racks
  
 
=== Machine guns ===
 
=== Machine guns ===
 +
{{Specs-Tank-Weapon|2}}
 +
<!-- ''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|SGMT (7.62 mm)}}
 
{{main|SGMT (7.62 mm)}}
  
−
''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.''
+
{| class="wikitable" style="text-align:center" width="50%"
 +
|-
 +
! colspan="5" | [[SGMT (7.62 mm)|7.62 mm SGMT]]
 +
|-
 +
! Mount !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal
 +
|-
 +
| Coaxial || 2,000 (250) || 600 || N/A || N/A
 +
|-
 +
|}
  
 
== Usage in battles ==
 
== Usage in battles ==
−
''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but 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).''
+
<!-- ''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).'' -->
 +
'''Gameplay Stock:'''
 +
 
 +
The Object 685 is much less powerful when stock. It is equipped with the 3BK17M HEAT-FS shell, which is generally inferior to the 3BM25 shell. Another issue while stock is the mobility, which is not as impressive when stock. Another issue is the lack of the Airstrike modification, which makes spawning in air vehicles easier in ground RB after scouting.
 +
 
 +
'''Gameplay Spaded:'''
 +
 
 +
The Object 685 is a highly mobile Soviet light tank which has an excellent cannon. Its disadvantages are thin armour and a lack of thermal sights. Object 685 players should avoid areas with heavy foliage, as the lack of thermals will prove detrimental in these areas. The best strategy with the Object 685 is flanking the enemy team using the Object 685's mobility. The amphibious capability can help create new avenues of attack when flanking. The scouting ability also helps the team while on the flanks. One tactic to avoid in the Object 685 is using the ESS system, as enemy thermal sights can see through the smoke, while the Object 685 will effectively blind itself.
 +
 
 +
'''Close Range Engagements:'''
 +
 
 +
The Object 685 can fare well at close range due to the excellent gun handling and reload rate. Additionally, the mobility of the vehicle allows it to easily outmanoeuvre enemies at close range.
 +
 
 +
'''Long Range Engagements:'''
 +
 
 +
The Object 685 may have difficulty in prolonged long range engagements. The main armament is excellent, but the Object is held back by its lack of thermal sights and low survivability. The lack of thermals means that seeing your target may be difficult at long range. Additionally, the low survivability means that the Object 685 will not survive most hits, even at long range.
  
 
=== 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 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".''
+
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
  
 
'''Pros:'''
 
'''Pros:'''
−
*
+
 
 +
* Powerful rounds with a fast reload
 +
* Able to reload while putting out fires or replacing turret crew thanks to the autoloader
 +
* Has smoke grenades and ESS
 +
* Good mobility
 +
* Scouting ability
 +
* Thin armour avoids excessive spalling
 +
* Amphibious
  
 
'''Cons:'''
 
'''Cons:'''
−
*
+
 
 +
* Thin armour
 +
* Poor gun depression and elevation
 +
* Vulnerable to overpressure
 +
* Lack of thermal sights
 +
* Small crew
  
 
== 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 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></nowiki></code>, as well as adding them at the end of the article. 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 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).'' -->
 
After production of the PT-76 was discontinued, Soviet engineers began work on developing a suitable replacement around a set of requirements provided by the military. The requirements were sent to three different design bureaus, with each bureau developing its own vehicle around the given specifications.
 
After production of the PT-76 was discontinued, Soviet engineers began work on developing a suitable replacement around a set of requirements provided by the military. The requirements were sent to three different design bureaus, with each bureau developing its own vehicle around the given specifications.
  
Line 46: Line 159:
  
 
''- From [[wt:en/news/6332-development-object-685-return-of-the-river-mosquito-en|Devblog]]''
 
''- From [[wt:en/news/6332-development-object-685-return-of-the-river-mosquito-en|Devblog]]''
 +
 +
In the 1970s, the Russian Ministry of Defense opted to create a replacement for the PT-76, the main to contestants being the PT-85 (also known as Object 906) and the Object 685. It was tested but did not enter service or combat. It featured components that were later used for multiple vehicles, this being the Object 688 (which ended being the BMP-2), BMD-3 and 2S25 Sprut-SD (based on BMD-3). It was made for airborne units to maintain the armoured section of airborne units, at the time those being PT-76, BMD-1 and ASU-85. It featured a greater weight than the PT-76 due to the size and main gun but featured a more compact suspension due to being a telescopic hydraulic shock absorbers and suspension.
  
 
== 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.'' -->
 +
 
 +
;Skins
 +
 
 +
* [https://live.warthunder.com/feed/camouflages/?vehicle=ussr_object_685 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
  
 
== 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 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.''
  
 
== 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 tank;''
+
* ''other literature.'' -->
−
* ''other literature.''-->
+
 
−
* [[wt:en/news/6332-development-object-685-return-of-the-river-mosquito-en|[Development<nowiki>]</nowiki> Object 685: Return of the River Mosquito]]
+
* [[wt:en/news/6332-development-object-685-return-of-the-river-mosquito-en|[Development] Object 685: Return of the River Mosquito]]
  
 
{{USSR light tanks}}
 
{{USSR light tanks}}

Latest revision as of 12:27, 6 January 2024

Object 685
ussr_object_685.png
GarageImage Object 685.jpg
Object 685
USSR flag.png USSR
VI Rank
Battle rating:
AB RB SB
8.3 8.7 8.7
Class:
Research:81 000 Specs-Card-Exp.png
Purchase:450 000 Specs-Card-Lion.png
Show in game

Description

The Object 685 was a proposed replacement for the PT-76. It competed with two other designs, namely Object 788 and Object 934. The project's notable requirements were to develop a vehicle with a maximum combat weight of 15 tons, armed with a rifled 100-mm gun, an 9K111 "Fagot" anti-tank missile system, and a 12.7 mm machine gun. The project's protection requirements included anti-nuclear features like automatic sealing and air filtration capabilities, and the ability to withstand up to 23 mm AP rounds. Object 788 was disqualified for not including the 9K111 "Fagot" anti-tank missile system, trench-digging equipment, and a water-jet propulsion system. However, both Object 934 and Object 685 managed to pass the initial design evaluation, suggesting that they showed promise despite lacking certain components. It is likely that these designs were later taken into consideration for modifications and improvements to incorporate the missing criteria. Nevertheless, the production was eventually abandoned because they were unable to garner enough interest to continue. Still, later Soviet AFV designs made extensive use of many of the components and design solutions found in Object 934 and Object 685, showing that their potential was recognized and put to good use.

The Object 685 was introduced in Update 1.91 "Night Vision". It is a powerful and versatile vehicle that is well-suited for flanking. It features excellent forward mobility, a 6-second reload cannon, and a sufficient 3BM25 shell. However, its main drawbacks are its subpar survivability, lack of thermal sights, and poor gun depression. Even despite that, the Object 685 remains a good choice for players who prefer a more careful yet aggressive and fast-paced playstyle.

General info

Survivability and armour

Smoke grenades
Creation of a smoke screen in front of the vehicle
ESS
Creation of a smoke screen in the direction of movement of the vehicle
Armourfront / side / back
Hull60 / 43 / 13
Turret50 / 43 / 43
Crew3 people
Visibility75 %
Object 685 X-ray view in hangar

Armour type:

  • Alloy ABT-101 (hull, turret, cupola)
Armour Front (Slope angle) Sides Rear Roof
Hull 54 mm 16 mm 5 mm 6 mm
Turret 19 mm 16 mm 16 mm 8 mm

Notes:

  • Suspension wheels are 10 mm thick and tracks are 20 mm thick
  • The armour on the Object 685 is Alloy ABT-101. The armour values in the chart are displayed in rolled homogeneous armour equivalence.

The Object 685 is a very lightly armoured vehicle. The alloy may at first appear to be somewhat thick, but it is much less effective than rolled homogeneous armour at stopping rounds. The Object 685 can be killed by almost anything, with .50 calibre machine guns able to penetrate even parts of the front armour at close range. Additionally, the Object 685 is vulnerable to overpressure damage. The commander and gunner are somewhat far apart, but the Object has only 3 crew, so survivability is not particularly impressive. Generally, Object 685 drivers should not rely on their armour in any situation.

Mobility

Amphibious
The design allows you to swim and control movement in the water
Speedforward / back
AB79 / 23 km/h
RB and SB71 / 21 km/h
Number of gears4 forward
2 back
Weight16.5 t
Engine power
AB868 hp
RB and SB455 hp
Power-to-weight ratio
AB52.6 hp/t
RB and SB27.6 hp/t
Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 79 23 16.5 705 868 42.73 52.61
Realistic 71 21 402 455 24.36 27.58

Mobility wise, the Object 685 can be considered as a slightly heavier Object 906 compensated by a noticeable stronger engine and a different gear box (note the missing reverse gearbox). It is not slow but is not the fastest light tank at the battle-rating. When downtiered, it is able to be faster than most tracked vehicles (most of them reach as most 65 km/h while this can reach more than 70 km/h) with exception of the Rooikat 105, Rooikat Mk.1D and Radkampfwagen 90. It's suspension is a relatively soft suspension, meaning it will not damp as much in rough terrain but due to its thin tracks, the surface the tracks have on the floor make it be relatively slow on snow and sand (but faster than many tracked vehicles). It is fully amphibious which makes the Object 685 capable of crossing water bodies which can give an advantage (Eastern Europe river for example) but the speed while on water is lacklustre.

Modifications and economy

Repair costBasic → Reference
AB3 218 → 5 245 Sl icon.png
RB3 360 → 5 476 Sl icon.png
SB3 897 → 6 352 Sl icon.png
Total cost of modifications133 100 Rp icon.png
222 200 Sl icon.png
Talisman cost2 400 Ge icon.png
Crew training130 000 Sl icon.png
Experts450 000 Sl icon.png
Aces2 000 Ge icon.png
Research Aces890 000 Rp icon.png
Reward for battleAB / RB / SB
120 / 160 / 200 % Sl icon.png
214 / 214 / 214 % Rp icon.png
Modifications
Mobility Protection Firepower
Mods new tank traks.png
Tracks
Research:
7 100 Rp icon.png
Cost:
11 000 Sl icon.png
410 Ge icon.png
Mods new tank suspension.png
Suspension
Research:
5 300 Rp icon.png
Cost:
8 400 Sl icon.png
300 Ge icon.png
Mods new tank break.png
Brake System
Research:
5 300 Rp icon.png
Cost:
8 400 Sl icon.png
300 Ge icon.png
Mods new tank filter.png
Filters
Research:
5 900 Rp icon.png
Cost:
9 300 Sl icon.png
340 Ge icon.png
Mods new tank transmission.png
Transmission
Research:
7 700 Rp icon.png
Cost:
12 000 Sl icon.png
440 Ge icon.png
Mods new tank engine.png
Engine
Research:
7 700 Rp icon.png
Cost:
12 000 Sl icon.png
440 Ge icon.png
Mods tank tool kit.png
Improved Parts
Research:
2 100 Rp icon.png
Cost:
11 000 Sl icon.png
410 Ge icon.png
Mods extinguisher.png
Improved FPE
Research:
1 600 Rp icon.png
Cost:
8 400 Sl icon.png
300 Ge icon.png
Mods tank reinforcement ussr.png
Crew Replenishment
Research:
5 900 Rp icon.png
Cost:
9 300 Sl icon.png
340 Ge icon.png
Mods engine smoke screen system.png
ESS
Research:
7 700 Rp icon.png
Cost:
12 000 Sl icon.png
440 Ge icon.png
Mods new tank horizontal aiming.png
Horizontal Drive
Research:
7 100 Rp icon.png
Cost:
11 000 Sl icon.png
410 Ge icon.png
Mods tank ammo.png
100mm_BR412D_ammo_pack
Research:
7 100 Rp icon.png
Cost:
11 000 Sl icon.png
410 Ge icon.png
Mods tank cannon.png
Adjustment of Fire
Research:
5 300 Rp icon.png
Cost:
8 400 Sl icon.png
300 Ge icon.png
Mods airstrike.png
Airstrike
Research:
5 300 Rp icon.png
Cost:
8 400 Sl icon.png
300 Ge icon.png
Mods tank ammo.png
100mm_3BK25_ammo_pack
Research:
5 300 Rp icon.png
Cost:
8 400 Sl icon.png
300 Ge icon.png
Mods new tank vertical aiming.png
Elevation Mechanism
Research:
5 900 Rp icon.png
Cost:
9 300 Sl icon.png
340 Ge icon.png
Mods smoke screen.png
Smoke grenade
Research:
5 900 Rp icon.png
Cost:
9 300 Sl icon.png
340 Ge icon.png
Mods tank laser rangefinder.png
Laser rangefinder
Research:
5 900 Rp icon.png
Cost:
9 300 Sl icon.png
340 Ge icon.png
Mods scout streak.png
Scout UAV
Research:
5 900 Rp icon.png
Cost:
9 300 Sl icon.png
340 Ge icon.png
Mods art support.png
Artillery Support
Research:
7 700 Rp icon.png
Cost:
12 000 Sl icon.png
440 Ge icon.png
Mods scouting.png
Improved optics
Research:
7 700 Rp icon.png
Cost:
12 000 Sl icon.png
440 Ge icon.png
Mods tank ammo.png
100mm_ussr_Smoke_ammo_pack
Research:
7 700 Rp icon.png
Cost:
12 000 Sl icon.png
440 Ge icon.png

Armaments

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

Main armament

100 mm 2А48 cannon
Two-plane stabilizer
Reduces the swing of the gun in two planes while moving
Autoloader
Automatically feeds projectiles into the breech. The speed does not depend on the skills of the loader
Ammunition40 rounds
First-order12 rounds
Reload6.0 s
Vertical guidance-4° / 17°
Main article: 2A48 (100 mm)

The Object 685 has the same ballistics as the D-10T2S 100 mm cannon even sharing the same ammunition. Thus, the use of the gun should be the same as the T-55A. The gun is capable of destroying all enemy vehicles it faces from the front (with exception of the Maus glacis) with its powerful APFSDS shell. Despite not having the most powerful dart at the battle rating, the 6 second reload of the autoloader makes the Object 685 a formidable quick firing tank, capable of destroying multiple enemies with relative speed.

Important: in order to let the autoloader load, the gunner must be alive

100 mm 2A48 Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Autoloader
Arcade 40 -4°/+17° ±180° Two-plane 19.0 26.4 32.0 35.4 37.7 6.00
Realistic 11.9 14.0 17.0 18.8 20.0

Ammunition

Penetration statistics
Ammunition Type of
warhead 		Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
3BK17M HEATFS 390 390 390 390 390 390
BR-412D APCBC 239 236 220 202 185 170
3BM25 APFSDS 335 330 307 290 275 260
OF-412 HE 27 27 26 24 23 21
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%
3BK17M HEATFS 1,085 9.96 0.05 0.1 1,170 65° 72° 77°
BR-412D APCBC 887 15.88 1.2 19 100.1 48° 63° 71°
3BM25 APFSDS 1,430 3.4 - - - 76° 77° 80°
OF-412 HE 900 15.6 0.2 0.1 1,460 79° 80° 81°
Smoke shell characteristics
Ammunition Velocity
(m/s) 		Projectile
mass (kg) 		Screen radius
(m) 		Screen deploy
time (s) 		Screen hold
time (s) 		Explosive mass
(TNT equivalent) (g)
3D3 880 15.6 16 5 25 50

Ammo racks

Ammo racks of the Object 685
Full
ammo 		1st
rack empty 		2nd
rack empty 		3rd
rack empty 		4th
rack empty 		5th
rack empty 		6th
rack empty 		Visual
discrepancy
40 29 (+11) 21 (+19) 17 (+23) 13 (+27) 7 (+33) 1 (+39) No

Note:

  • Racks 5 and 6 are first-stage ammo racks

Machine guns

7.62 mm SGMT machine gun (coaxial)
Ammunition2 000 rounds
Belt capacity250 rounds
Reload8.0 s
Fire rate600 shots/min
Main article: SGMT (7.62 mm)
7.62 mm SGMT
Mount Capacity (Belt) Fire rate Vertical Horizontal
Coaxial 2,000 (250) 600 N/A N/A

Usage in battles

Gameplay Stock:

The Object 685 is much less powerful when stock. It is equipped with the 3BK17M HEAT-FS shell, which is generally inferior to the 3BM25 shell. Another issue while stock is the mobility, which is not as impressive when stock. Another issue is the lack of the Airstrike modification, which makes spawning in air vehicles easier in ground RB after scouting.

Gameplay Spaded:

The Object 685 is a highly mobile Soviet light tank which has an excellent cannon. Its disadvantages are thin armour and a lack of thermal sights. Object 685 players should avoid areas with heavy foliage, as the lack of thermals will prove detrimental in these areas. The best strategy with the Object 685 is flanking the enemy team using the Object 685's mobility. The amphibious capability can help create new avenues of attack when flanking. The scouting ability also helps the team while on the flanks. One tactic to avoid in the Object 685 is using the ESS system, as enemy thermal sights can see through the smoke, while the Object 685 will effectively blind itself.

Close Range Engagements:

The Object 685 can fare well at close range due to the excellent gun handling and reload rate. Additionally, the mobility of the vehicle allows it to easily outmanoeuvre enemies at close range.

Long Range Engagements:

The Object 685 may have difficulty in prolonged long range engagements. The main armament is excellent, but the Object is held back by its lack of thermal sights and low survivability. The lack of thermals means that seeing your target may be difficult at long range. Additionally, the low survivability means that the Object 685 will not survive most hits, even at long range.

Pros and cons

Pros:

  • Powerful rounds with a fast reload
  • Able to reload while putting out fires or replacing turret crew thanks to the autoloader
  • Has smoke grenades and ESS
  • Good mobility
  • Scouting ability
  • Thin armour avoids excessive spalling
  • Amphibious

Cons:

  • Thin armour
  • Poor gun depression and elevation
  • Vulnerable to overpressure
  • Lack of thermal sights
  • Small crew

History

After production of the PT-76 was discontinued, Soviet engineers began work on developing a suitable replacement around a set of requirements provided by the military. The requirements were sent to three different design bureaus, with each bureau developing its own vehicle around the given specifications.

One of the proposed designs, the Object 788, was disqualified early from the competition due to being incomplete and missing several key features mandated by the requirements. The other two designs, the Object 685 and Object 934 were both deemed as sufficient, and work on them continued. By the mid 1970s, both vehicles were built and tested, but neither managed to garner enough interest to warrant a production order being issued. Despite not making it past the prototype stage, design solutions from both vehicles were later applied to other Soviet fighting vehicles.

- From Devblog

In the 1970s, the Russian Ministry of Defense opted to create a replacement for the PT-76, the main to contestants being the PT-85 (also known as Object 906) and the Object 685. It was tested but did not enter service or combat. It featured components that were later used for multiple vehicles, this being the Object 688 (which ended being the BMP-2), BMD-3 and 2S25 Sprut-SD (based on BMD-3). It was made for airborne units to maintain the armoured section of airborne units, at the time those being PT-76, BMD-1 and ASU-85. It featured a greater weight than the PT-76 due to the size and main gun but featured a more compact suspension due to being a telescopic hydraulic shock absorbers and suspension.

Media

Skins

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


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

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