Difference between revisions of "Object 268"

From War Thunder Wiki
Jump to: navigation, search
(Media: Added video of the real 268 running at Kubinka)
(Added several up-to-date tables and short description. Minor proof-reading. Surely needs a mod's touch. :))
Line 2: Line 2:
  
 
== 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.''
+
The Object 268 is a rank V soviet tank destroyer with a battle rating of 7.3.  It was introduced in update '''[[Update 1.69 "Regia Aeronautica"]]'''. The Object 268 is a self-propelled gun based on the T-10M heavy tank featuring a 152mm M-64 cannon.
  
 
== General info ==
 
== General info ==
Line 9: Line 9:
  
 
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''
 
''If necessary use a visual template to indicate the most secure and weak zones of the armour.''
 +
 +
{| class="wikitable"
 +
|-
 +
!Armour!!Front!!Sides!!Rear!!Roof
 +
|-
 +
|Hull||120 mm (57°) ''Front glacis''
 +
120 mm (49°) ''Lower glacis''
 +
40/60 mm (78-79°) ''Driver's port''||60 mm (52-56°) ''Top''
 +
80 mm (0-42°) ''Middle''
 +
30+80 mm (60°) ''Bottom''||50 mm (53°) ''Top''
 +
60 mm (21-52°) ''Bottom''
 +
|30 mm (84-90°) ''Engine Deck''
 +
5 mm (13-14°) ''Vents''
 +
 +
|-
 +
|Superstructure||187 mm (0-27°) ''Turret front''
 +
157 mm (50-61°) ''Gun mantlet''
 +
|100 mm (20°)||50 mm (13-14°)||30 mm (81-89°)
 +
|-
 +
!Armour!!Sides!!Roof
 +
|-
 +
|Cupola||40 mm||40 mm
 +
|}
  
 
=== 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 maneuverability, as well as the maximum speed forwards and backwards.''
  
 +
{| class="wikitable" style="text-align:center"
 +
|-
 +
! colspan="3" |Mobility characteristic
 +
|-
 +
!Weight (tons)
 +
! colspan="1" |Add-on Armour
 +
weight (tons)
 +
! colspan="1" |Max speed (km/h)
 +
|-
 +
| rowspan="2" |50.0|| colspan="1" rowspan="2" |N/A|| colspan="1" |53 (AB)
 +
|-
 +
|50 (RB/SB)
 +
|-
 +
! colspan="3" |Engine power (horsepower)
 +
|-
 +
! colspan="1" |Mode
 +
!Stock
 +
!Upgraded
 +
|-
 +
|''Arcade''
 +
|968
 +
|1192
 +
|-
 +
|''Realistic/Simulator''
 +
|663
 +
|750
 +
|-
 +
! colspan="3" |Power-to-weight ratio (hp/ton)
 +
|-
 +
! colspan="1" |Mode
 +
!Stock
 +
!Upgraded
 +
|-
 +
|''Arcade''
 +
|19.36
 +
|23.84
 +
|-
 +
|''Realistic/Simulator''
 +
|13.26
 +
|15.00
 +
|}
 
== Armaments ==
 
== Armaments ==
 
=== Main armament ===
 
=== Main armament ===
Line 20: Line 84:
 
The Object 268 is fitted with the 152mm M-64 cannon, a very fearsome weapon at this BR with three potent rounds that are capable of destroying virtually any vehicle in the game, so as long as the operator is skilled in its use. The ammunition loadout consists of HE, APCBC and HEAT, all three of which are excellent solutions to various situations in a battle.
 
The Object 268 is fitted with the 152mm M-64 cannon, a very fearsome weapon at this BR with three potent rounds that are capable of destroying virtually any vehicle in the game, so as long as the operator is skilled in its use. The ammunition loadout consists of HE, APCBC and HEAT, all three of which are excellent solutions to various situations in a battle.
  
This 152mm cannon has an excellent reload speed at 22.2s stock and 18.0s with an Ace crew, which means it has massively increased firepower compared to the similarly-tiered IS-3, which has a reload rate of 27.7s stock and 24.0s Aced.  
+
This 152mm cannon has an excellent reload speed at 22.2s stock and 17.1s with an Ace crew, which means it has massively increased firepower compared to the similarly-tiered IS-3, which has a reload rate of 27.7s stock and 24.0s Aced.  
 +
 
 +
{| class="wikitable" style="text-align:center"
 +
|-
 +
! colspan="6" |[[M-64 (152 mm)|152mm M-64 cannon]]
 +
|-
 +
! colspan="2" rowspan="1" style="width:5em" |Total Capacity
 +
!First stage Capacity
 +
! rowspan="1" |Vertical
 +
guidance
 +
! rowspan="1" |Horizontal
 +
guidance
 +
! rowspan="1" |Stabilizer
 +
|-
 +
| colspan="2" |35
 +
|17||-5°/+15°||±6°||N/A
 +
|-
 +
! colspan="6" |Gun traverse 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''||7.04||__.__||__.__||__.__||__.__
 +
|-
 +
|''Realistic''||4.73||__.__||__.__||__.__||__.__
 +
|-
 +
! colspan="4" |Reloading rate (seconds)
 +
|-
 +
! colspan="1" style="width:4em" |Stock
 +
! colspan="1" style="width:4em" |Prior + Full crew
 +
! colspan="1" style="width:4em" |Prior + Expert qualif.
 +
! colspan="1" style="width:4em" |Prior + Ace qualif.
 +
|-
 +
|22.23||19.67||18.13||17.10
 +
|}
 +
 
 +
=====Ammunition=====
 +
{| class="wikitable sortable" style="text-align:center" width="100%"
 +
! colspan="11" |Shell details
 +
|-
 +
! rowspan="2" data-sort-type="text" |Ammunition
 +
! rowspan="2" class="unsortable" |Type of
 +
warhead
 +
! rowspan="2" |Velocity
 +
in m/s
 +
! rowspan="2" |Projectile
 +
Mass in kg
 +
! rowspan="2" |''Fuse delay''
 +
''in m:''
 +
! rowspan="2" |''Fuse sensitivity''
 +
''in mm:''
 +
! rowspan="2" |''Explosive Mass in g'' ''(TNT equivalent):''
 +
! rowspan="2" |''Normalization At 30°''
 +
''from horizontal:''
 +
! colspan="3" |''Ricochet:''
 +
|-
 +
!0%
 +
!50%
 +
!100%
 +
|-
 +
|OF-540||HE||750||43.56||0.1||0.5||5,900||+0°||79°||80°||81°
 +
|-
 +
|BR-540B||APCBC||750||48.96||1.2||19||1,020||+4°||48°||63°||71°
 +
|-
 +
|BP-540||HEAT||770||27.67||0.0||0.1||5,910||+0°||62°||69°||73°
 +
|-
 +
|}
 +
{| class="wikitable sortable" style="text-align:center" width="100%"
 +
! colspan="8" |Penetration statistics
 +
|-
 +
! rowspan="2" data-sort-type="text" |Ammunition
 +
! rowspan="2" class="unsortable" |Type of
 +
warhead
 +
! colspan="6" |'''Penetration''' '''''in mm''''' '''@ 90°'''
 +
|-
 +
!10m
 +
!100m
 +
!500m
 +
!1000m
 +
!1500m
 +
!2000m
 +
|-
 +
|BR-540B||APCBC||228||226||216||204||193||182
 +
|-
 +
|OF-540||HE||49||49||49||49||49||49
 +
|-
 +
|BP-540||HEAT||250||250||250||250||250||250
 +
|}
 +
 
 +
[[Ammo racks|'''Ammo racks''']] 
 +
 
 +
{| class="wikitable" style="text-align:center"
 +
|-
 +
! class="wikitable unsortable" |Full
 +
 
 +
ammo
 +
! class="wikitable unsortable" |1st
 +
rack empty
 +
! class="wikitable unsortable" |2nd
 +
rack empty
 +
! class="wikitable unsortable" |3rd
 +
rack empty
 +
! class="wikitable unsortable" |4th
 +
rack empty
 +
! class="wikitable unsortable" |Visual
 +
discrepancy
 +
|-
 +
||'''35'''||30 ''(+5)''||18 ''(+17)''||11 ''(+24)''||9 ''(+26)''|| style="text-align:left" |No
 +
|}
  
 
=== Machine guns ===
 
=== Machine guns ===
Line 26: Line 202:
 
{{main|KPVT (14.5 mm)}}
 
{{main|KPVT (14.5 mm)}}
  
The Object 268 is armed with a single 14.5mm KPVT heavy machine gun, it is highly effective in dispatching lightly armoured vehicles and defending from air attacks. And can even potentially damage or destroy enemy gun barrels. However, this machine gun is loaded with measly 25 round belts, which only allows for small bursts, punctuated with a lengthly reload.
+
The Object 268 is armed with a single 14.5mm KPVT heavy machine gun commanded by the commander.  It is highly effective in dispatching lightly armoured vehicles and defending from air attacks. It can even potentially damage or destroy enemy gun barrels. However, this machine gun is loaded with 50 round belts, which only allows for a few short bursts punctuated with a lengthy reload.
 +
 
 +
{| class="wikitable" style="text-align:center"
 +
|-
 +
! colspan="7" |[[KPVT (14.5 mm)|14.5 mm KPVT]]
 +
|-
 +
! colspan="7" |''Pintle mount''
 +
|-
 +
! colspan="4" rowspan="1" style="width:5em" |Capacity (Belt capacity)
 +
! rowspan="1" |Fire rate
 +
(shots/minute)
 +
! rowspan="1" |Vertical
 +
guidance
 +
! rowspan="1" |Horizontal
 +
guidance
 +
|-
 +
| colspan="4" |500 (50)||600||-5°/+85°||±180°
 +
|}
  
 
== 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).-->
  
The Object 268 is an excellent single-direction brawler, as its frontal armour can withstand most shells at its BR, it is capable of locking down an entire street, which dissuades any enemy advances in the area. Although it is best used in urban maps as a brawler, it can also function as a mobile pillbox in rural maps, drawing enemy fire and covering a wide area of the map to deny enemy movements.
+
The Object 268 is an excellent single-direction brawler, as its frontal armour can withstand most kinetic shells at its BR, it is capable of locking down an entire street, which dissuades any enemy advances in the area. Although it is best used in urban maps as a brawler, it can also function as a mobile pillbox in rural maps, drawing enemy fire and covering a wide area of the map to deny enemy movements.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
Line 42: Line 235:
 
* Excellent firepower, with a fast-firing 152mm and a 14.5mm machine gun, which is perfect for dealing with light tanks and dissuading enemy air support.
 
* Excellent firepower, with a fast-firing 152mm and a 14.5mm machine gun, which is perfect for dealing with light tanks and dissuading enemy air support.
 
* Impressive mobility in a straight line.
 
* Impressive mobility in a straight line.
* Great blend of firepower and protection allows this vehicle to function as a mobile pillbox, locking down areas of the map.
 
 
* All ammunition types remain effective at long ranges, solving an issue that persists with many Russian tanks at this BR.
 
* All ammunition types remain effective at long ranges, solving an issue that persists with many Russian tanks at this BR.
* Side armour of the casemate is an excellent 100mm. Which allows you to engage targets from multiple directions with relative ease, without having to worry about exposing weaker side armour.
+
* Side armour of the casemate is an excellent 100mm. Which can afford you to engage targets from multiple directions without having to worry about exposing weaker side armour.
 
* The original reload speed is retained with the loss of one loader.  
 
* The original reload speed is retained with the loss of one loader.  
* Has access to a researchable Range Finder modification, increasing its already impressive performance at longer ranges.
+
* Has access to a unlockable Rangefinder modification, increasing its already impressive performance at longer ranges.
  
 
'''Cons:'''
 
'''Cons:'''
Line 55: Line 247:
 
* Firing the cannon kicks up a massive dust cloud, making the vehicle easy to spot when its firing from a concealed position.
 
* Firing the cannon kicks up a massive dust cloud, making the vehicle easy to spot when its firing from a concealed position.
 
* The 14.5mm KPV machine gun cannot point directly to the vehicle's left side, as its traverse is blocked by the rangefinder and cupola.
 
* The 14.5mm KPV machine gun cannot point directly to the vehicle's left side, as its traverse is blocked by the rangefinder and cupola.
* Small weakspot next to the gun is only 187mm thick, and is usually lethal if penetrated.
+
* Small weakspot next to the gun is a flat 187mm area, and is usually lethal if penetrated.
  
 
== History ==
 
== History ==
Line 86: Line 278:
 
* ''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.''-->
 +
 
* [[T-10M|'''''T-10M''''']] - Object 268 was developed on the hull of the T-10
 
* [[T-10M|'''''T-10M''''']] - Object 268 was developed on the hull of the T-10
 
* [[ISU-152|'''''ISU-152''''']] - Object 268 was intended as the successor to the ISU-152
 
* [[ISU-152|'''''ISU-152''''']] - Object 268 was intended as the successor to the ISU-152
Line 94: Line 287:
 
* ''encyclopedia page on the tank;''
 
* ''encyclopedia page on the tank;''
 
* ''other literature.''-->
 
* ''other literature.''-->
 +
 
* Kinnear, James and Stephen L. Sewell. ''Soviet T-10 Heavy Tank and Variants.'' Oxford: Osprey Publishing, 2017.
 
* Kinnear, James and Stephen L. Sewell. ''Soviet T-10 Heavy Tank and Variants.'' Oxford: Osprey Publishing, 2017.
  

Revision as of 02:56, 22 November 2019

Object 268
ussr_object_268.png
AB
RB
SB
General characteristics
Brief
Detailed
7.3/7.3/7.3BR
4 peopleCrew
93 %Visibility
front / side / backArmour
120 / 80 / 60Hull
187 / 100 / 50Turret
Mobility
50.0 tWeight
1 431 hp750 hpEngine power
29 hp/t15 hp/tSurface density
54 km/h forward
10 km/h back
50 km/h forward
9 km/h back
Speed
Armament
152 mm М-64 cannonMain weapon
35 roundsAmmunition
17 roundsFirst-order
17.1 / 22.3 sReload
-5° / 15°Vertical guidance
-6° / 6°Horizontal guidance
14.5 mm KPVT machine gunMachinegun
500 roundsAmmunition
8.0 / 10.4 sReload
50 roundsBelt capacity
600 shots/minFire rate
-5° / 85°Vertical guidance
Economy
170 000 Rp icon.pngResearch
440 000 Sl icon.pngPurchase
Sl icon.png6 100 / 8 137/3 700 / 4 935/5 000 / 6 670Repair
130 000 Sl icon.pngCrew training
440 000 Sl icon.pngExperts
1 400 Ge icon.pngAces
208 % Rp icon.pngReward for battle
180 % Sl icon.png150 % Sl icon.png130 % Sl icon.png

Description

The Object 268 is a rank V soviet tank destroyer with a battle rating of 7.3. It was introduced in update Update 1.69 "Regia Aeronautica". The Object 268 is a self-propelled gun based on the T-10M heavy tank featuring a 152mm M-64 cannon.

General info

Survivability and armour

Describe armour protection. Note the most well protected and key weak areas. Appreciate the layout of modules as well as the number and location of crew members. Is the level of armour protection sufficient, is the placement of modules helpful for survival in combat?

If necessary use a visual template to indicate the most secure and weak zones of the armour.

Armour Front Sides Rear Roof
Hull 120 mm (57°) Front glacis

120 mm (49°) Lower glacis 40/60 mm (78-79°) Driver's port||60 mm (52-56°) Top 80 mm (0-42°) Middle 30+80 mm (60°) Bottom||50 mm (53°) Top 60 mm (21-52°) Bottom

30 mm (84-90°) Engine Deck

5 mm (13-14°) Vents

Superstructure 187 mm (0-27°) Turret front

157 mm (50-61°) Gun mantlet

100 mm (20°) 50 mm (13-14°) 30 mm (81-89°)
Armour Sides Roof
Cupola 40 mm 40 mm

Mobility

Write about the mobility of the ground vehicle. Estimate the specific power and maneuverability, as well as the maximum speed forwards and backwards.

Mobility characteristic
Weight (tons) Add-on Armour

weight (tons)

Max speed (km/h)
50.0 N/A 53 (AB)
50 (RB/SB)
Engine power (horsepower)
Mode Stock Upgraded
Arcade 968 1192
Realistic/Simulator 663 750
Power-to-weight ratio (hp/ton)
Mode Stock Upgraded
Arcade 19.36 23.84
Realistic/Simulator 13.26 15.00

Armaments

Main armament

Main article: M-64 (152 mm)

The Object 268 is fitted with the 152mm M-64 cannon, a very fearsome weapon at this BR with three potent rounds that are capable of destroying virtually any vehicle in the game, so as long as the operator is skilled in its use. The ammunition loadout consists of HE, APCBC and HEAT, all three of which are excellent solutions to various situations in a battle.

This 152mm cannon has an excellent reload speed at 22.2s stock and 17.1s with an Ace crew, which means it has massively increased firepower compared to the similarly-tiered IS-3, which has a reload rate of 27.7s stock and 24.0s Aced.

152mm M-64 cannon
Total Capacity First stage Capacity Vertical

guidance

Horizontal

guidance

Stabilizer
35 17 -5°/+15° ±6° N/A
Gun traverse speed (°/s)
Mode Stock Upgraded Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
Arcade 7.04 __.__ __.__ __.__ __.__
Realistic 4.73 __.__ __.__ __.__ __.__
Reloading rate (seconds)
Stock Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
22.23 19.67 18.13 17.10
Ammunition
Shell details
Ammunition Type of

warhead

Velocity

in m/s

Projectile

Mass in kg

Fuse delay

in m:

Fuse sensitivity

in mm:

Explosive Mass in g (TNT equivalent): Normalization At 30°

from horizontal:

Ricochet:
0% 50% 100%
OF-540 HE 750 43.56 0.1 0.5 5,900 +0° 79° 80° 81°
BR-540B APCBC 750 48.96 1.2 19 1,020 +4° 48° 63° 71°
BP-540 HEAT 770 27.67 0.0 0.1 5,910 +0° 62° 69° 73°
Penetration statistics
Ammunition Type of

warhead

Penetration in mm @ 90°
10m 100m 500m 1000m 1500m 2000m
BR-540B APCBC 228 226 216 204 193 182
OF-540 HE 49 49 49 49 49 49
BP-540 HEAT 250 250 250 250 250 250

Ammo racks

Full

ammo

1st

rack empty

2nd

rack empty

3rd

rack empty

4th

rack empty

Visual

discrepancy

35 30 (+5) 18 (+17) 11 (+24) (+26) No

Machine guns

Main article: KPVT (14.5 mm)

The Object 268 is armed with a single 14.5mm KPVT heavy machine gun commanded by the commander. It is highly effective in dispatching lightly armoured vehicles and defending from air attacks. It can even potentially damage or destroy enemy gun barrels. However, this machine gun is loaded with 50 round belts, which only allows for a few short bursts punctuated with a lengthy reload.

14.5 mm KPVT
Pintle mount
Capacity (Belt capacity) Fire rate

(shots/minute)

Vertical

guidance

Horizontal

guidance

500 (50) 600 -5°/+85° ±180°

Usage in battles

The Object 268 is an excellent single-direction brawler, as its frontal armour can withstand most kinetic shells at its BR, it is capable of locking down an entire street, which dissuades any enemy advances in the area. Although it is best used in urban maps as a brawler, it can also function as a mobile pillbox in rural maps, drawing enemy fire and covering a wide area of the map to deny enemy movements.

Pros and cons

Pros:

  • Excellent frontal protection, the armour is more than 250mm thick in most places and can deflect virtually any kinetic energy projectile at its BR with ease.
  • Single frontal weakspot is relatively small and easy to conceal with bushes.
  • Excellent firepower, with a fast-firing 152mm and a 14.5mm machine gun, which is perfect for dealing with light tanks and dissuading enemy air support.
  • Impressive mobility in a straight line.
  • All ammunition types remain effective at long ranges, solving an issue that persists with many Russian tanks at this BR.
  • Side armour of the casemate is an excellent 100mm. Which can afford you to engage targets from multiple directions without having to worry about exposing weaker side armour.
  • The original reload speed is retained with the loss of one loader.
  • Has access to a unlockable Rangefinder modification, increasing its already impressive performance at longer ranges.

Cons:

  • Large and boxy profile makes the Object 268 relatively easy to spot.
  • Unimpressive turning ability makes it difficult to deal with flanking enemies at closer ranges, and nearly impossible to counter targets directly behind the vehicle.
  • Large ammo racks on the sides and rear of the vehicle's casemate make flanking shots extremely lethal and usually unforgiving.
  • Firing the cannon kicks up a massive dust cloud, making the vehicle easy to spot when its firing from a concealed position.
  • The 14.5mm KPV machine gun cannot point directly to the vehicle's left side, as its traverse is blocked by the rangefinder and cupola.
  • Small weakspot next to the gun is a flat 187mm area, and is usually lethal if penetrated.

History

Development

The Object 268 self-propelled gun was one of the many derivative designs of the T-10 heavy tank. The concept began on 2 July 1952 at the Leningrad Kirov Plant on the order of the Council of Ministers USSR.[1] The Object 268 would follow in the same line of doctrine as had the earlier Soviet self-propelled guns of World War II, the SU-100, -122, and -152. This contrasted with the Western concept of a self-propelled gun being used as an artillery piece rather than the Soviet usage as a tank destroyer.[1] There had been earlier attempts at converting a heavy tank to a self-propelled gun, using the chassis of the IS-4 and IS-7, but those had not been fully developed and were cancelled. The IS-4 production was running too slowly and the IS-7 had been too complex to manufacture in large numbers.[2] The Leningrad Kirov Plant worked to produce an SPG on the T-10 chassis by combining it with the 152 mm M-48 cannon, which had high velocity and was much more powerful than earlier 152 mm cannons. Drawing work led to the Object 730 SPG which would be paired with the M-53 cannon, a parallel development to the M-48.[3]

The Object 730 SPG had five different variants drawn up with each one being unique. Version No.1 was a front mounted casemate design which would be developed into the Object 268. Version No.2 had a rear casemate with the main armament using a drum magazine at the rear of the fighting compartment and the engine at the front of the vehicle.[4] Version No.3 abandoned the casemate design and used a conventional turret with all ammunition being stored in the rear of the turret.[4] Version No.4 was a slightly modified No.2 with a lengthened hull, addition of a second loader (bringing the crew to five) and a new cupola with a rangefinder and machine gun.[5] Version No.5, likewise, was a reworked No.3 to also bring the crew to five and the addition of a 14.5 mm KPV machine gun, along with it using the same engine as would be used in the T-10M.[6] Versions No.4 and 5 were rejected due to being too drastic of changes to the base design, and it was decided to go with a slightly modified Version No.1 with the same engine as the T-10M.[7]

Final Design and Prototype

The final design for the Object 268 was presented to the committee in June 1953 using technical drawings and a scale model, which was approved on 25 August by A.I. Radzievsky.[7] This would be armed with the 152 mm M-64 cannon along with a 14.5 mm KPVT machine gun on the roof of the casemate, along with a stereoscopic rangefinder. While the crew was kept at five (having two loaders), it was intended to have a crew of four as soon as an automated loading mechanism could be made for the M-64 cannon.[7] The main armament was being slowly developed due to being lower priority than 122 mm development, but the M-64 was created by taking the M-53 cannon and slightly shortening it while still maintaining a muzzle velocity of 750 m/s.[8] The final drawings for the Object 268 were finalized in June 1954, reviewed in August and construction on prototypes had begun in March 1955.

Work continued on the M-64 cannon, with the prototype being completed in December 1955 and one being sent to Leningrad for installation into the Object 268 in February 1956. The prototype Object 268 was finally completed in March 1956 and was also still modified from the final drawings, as it was decided to use flat steel plates for the roof and rear of the casemate rather than the originally planned rounded plates as well modifications to allow the main armament to be installed and removed.[9]

Completed Vehicle and Cancellation

The completed Object 268 prototype was armed with the 152.4 mm M-64 cannon, built at the Leningrad plant, using the TSh-2A "Sharik" sight for direct fire and the ZiS-3 panoramic sight.[10] A TKD-09 stereoscopic rangefinder was mounted on the roof of the casemate along with a 14.5 mm KPVT heavy machine gun in a rotating ring above the gunner's hatch.[10] Full ammunition load was 35 rounds, with AP and HE-FRAG being available. The range at which a target could be engaged in direct fire was 900 meters with a maximum indirect fire range of 13,000 meters.[10] The hull of the Object 268 was 120 mm thick of RHA and the casemate was 187 mm. The engine used was the V-12-6 generating 750 HP, as well as using the same transmission as the T-10. Weight of the tank was 50 tonnes with a maximum speed of 48 km/h.

The Object 268 was ultimately cancelled, largely due to internal problems associated with the development of Soviet tanks. By the time the prototype was completed and trials had finished it was approaching the end of 1957 and even further development had been done. These designs had specifications and characteristics that were more advanced that the Object 268 and would have been so well protected that the M-64 cannon would have difficulty in taking them out.[11] It was expected that the Western tank development would also be able to defend against the Object 268, and the T-10 heavy tank had already begun production which could have caused issues if tank plants were made to manufacture a different version at the same time. In addition, a major shift in Soviet doctrine to incorporate more usage of anti-tank guided missiles, which had just been created in the Soviet Union in 1956.[11] The Object 268 was not accepted for mass production and further development of the Object 268 was halted, with only the single prototype having been made. It remains in the Kubinka tank polygon and museum.

Media

Video of Object 268 running at Kubinka (Russian)
Vehicle starts at (10:11)

See also

  • T-10M - Object 268 was developed on the hull of the T-10
  • ISU-152 - Object 268 was intended as the successor to the ISU-152

External links

  • Kinnear, James and Stephen L. Sewell. Soviet T-10 Heavy Tank and Variants. Oxford: Osprey Publishing, 2017.

References

  1. 1.0 1.1 James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 113.
  2. James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 114.
  3. James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), pp. 114-115.
  4. 4.0 4.1 James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 115.
  5. James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 116.
  6. James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 117.
  7. 7.0 7.1 7.2 James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 118.
  8. James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 119.
  9. James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 121.
  10. 10.0 10.1 10.2 James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 122-123.
  11. 11.0 11.1 James Kinnear and Stephen L. Sewell, Soviet T-10 Heavy Tank and Variants (Oxford: Osprey Publishing, 2017), p. 124-125.


USSR tank destroyers
Light  SU-5-1 · ZiS-30 · SU-57 · SU-57B · SU-76M · SU-76M (5th Gv.Kav.Corps) · YaG-10 (29-K) · SU-85A
Medium  SU-122 · SU-85 · SU-85M · SU-100 · SU-100P · SU-122P · SU-122-54
Heavy  SU-100Y · ISU-122 · ISU-122S · SU-152 · ISU-152 · Object 268 · Object 120
Rocket  BM-8-24 · BM-13N
Airborne  ASU-57 · ASU-85