Object 775

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RANK 4 FRANCE
Somua SM PACK
ussr_object_775.png
GarageImage Object 775.jpg
Object 775
Research:190 000 Specs-Card-Exp.png
Purchase:520 000 Specs-Card-Lion.png
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Description

In the mid 1960s, the USSR devised a new idea for a frontline tank destroyer: a low-profile armoured tank with a gun-launcher. By utilizing multiple technologies of the time, namely hydropneumatic suspension, a drum autoloader, and a shortened gun-launcher, the profile of the vehicle could be lowered to a new extreme. The first prototype of this project, the "Object 775" was a more obscure but intriguing piece of military history. With its unique design and the ability to fire anti-tank guided missiles from a concealed, low-profile turret, the Object 775 aimed to be a formidable addition to the Soviet military's arsenal. However, the program faced various challenges, including technical issues with the drum autoloader and hydropneumatic suspension cramped in such a small vehicle, and changing military requirements and Soviet tank doctrine of the era. These hurdles ultimately led to the cancellation of the program to instead focus on the development of a new dedicated MBT armed with an autoloaded 115 mm gun firing APFSDS rounds, resulting in the Object 435 prototype for the future T-64. The Object 775's story is a reminder of the ever-evolving nature of military technology and the need for constant adaptation to meet the demands of modern warfare.

The Object 775, introduced in Update "Kings of Battle", is definitely unique in its appearance. The Object 775 excels in hidden strikes at most ranges due to its strong ATGM, comically low profile, and decent frontal armour for its battle rating. When utilizing the hydropneumatic suspension and the built-in dozer blade to entrench the tank, the Object 775 can achieve almost complete invisibility from the enemy line of sight in its own "dug-in" cover, using its suspension to "peek" up and take a shot before lowering back down. The Object 775, however, most not be played as a brawler, as its side armour and internal protection is very weak. Due having a large ammo rack around the inside of the tank and only two crew members in the turret, pretty much any penetrating or overpressuring shot is guaranteed to destroy the tank. All in all, the Object 775 builds on the doctrine of Soviet missile tank destroyer engagement, primarily from the preceding IT-1.

General info

Survivability and armour

Composite armour
Balanced protection against all types of ammunition
ESS
Creation of a smoke screen in the direction of movement of the vehicle
Self-entrenching equipment
Creation of ramparts and trenches in soft ground
Armourfront / side / back
Hull100 / 80 / 40
Turret200 / 120 / 65
Crew2 people
Visibility74 %

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 type:

Armour Front (Slope angle) Sides Rear Roof
Hull ___ mm ___ mm Top
___ mm Bottom
___ mm ___ - ___ mm
Turret ___ - ___ mm Turret front
___ mm Gun mantlet
___ - ___ mm ___ - ___ mm ___ - ___ mm
Cupola ___ mm ___ mm ___ mm ___ mm

Notes:

Mobility

 
Controlled suspension
It is possible to adjust the ground clearance or more complex suspension positions
Speedforward / back
AB71 / 5 km/h
RB and SB65 / 5 km/h
Number of gears7 forward
1 back
Weight35.5 t
Engine power
AB1 336 hp
RB and SB700 hp
Power-to-weight ratio
AB37.6 hp/t
RB and SB19.7 hp/t

The mobility is solidly average. The Object 775 is very similar to the T-62, with a long and narrow chassis coupled to a decent engine. The vehicle will never be first to the fight or to cap points but it is fast enough to fit its playstyle very comfortably.

The vehicle has acceptable terrain-crossing capability but doesn't have the best torque for going up bigger hills or for keeping speed up on bumpy terrain.

Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 71 5 35.5 994 1,336 28 37.63
Realistic 65 5 619 700 17.44 19.72

Modifications and economy

Repair costBasic → Reference
AB4 240 → 6 114 Sl icon.png
RB4 821 → 6 951 Sl icon.png
SB6 130 → 8 839 Sl icon.png
Total cost of modifications153 700 Rp icon.png
262 000 Sl icon.png
Talisman cost2 600 Ge icon.png
Crew training150 000 Sl icon.png
Experts520 000 Sl icon.png
Aces2 100 Ge icon.png
Research Aces950 000 Rp icon.png
Reward for battleAB / RB / SB
150 / 210 / 240 % Sl icon.png
220 / 220 / 220 % Rp icon.png
Modifications
Mobility Protection Firepower
Mods new tank traks.png
Tracks
Research:
11 000 Rp icon.png
Cost:
17 000 Sl icon.png
360 Ge icon.png
Mods new tank suspension.png
Suspension
Research:
9 500 Rp icon.png
Cost:
15 000 Sl icon.png
310 Ge icon.png
Mods new tank break.png
Brake System
Research:
9 500 Rp icon.png
Cost:
15 000 Sl icon.png
310 Ge icon.png
Mods new tank filter.png
Filters
Research:
14 000 Rp icon.png
Cost:
22 000 Sl icon.png
460 Ge icon.png
Mods new tank transmission.png
Transmission
Research:
11 000 Rp icon.png
Cost:
17 000 Sl icon.png
360 Ge icon.png
Mods new tank engine.png
Engine
Research:
11 000 Rp icon.png
Cost:
17 000 Sl icon.png
360 Ge icon.png
Mods tank tool kit.png
Improved Parts
Research:
3 300 Rp icon.png
Cost:
17 000 Sl icon.png
360 Ge icon.png
Mods extinguisher.png
Improved FPE
Research:
2 900 Rp icon.png
Cost:
15 000 Sl icon.png
310 Ge icon.png
Mods tank reinforcement ussr.png
Crew Replenishment
Research:
14 000 Rp icon.png
Cost:
22 000 Sl icon.png
460 Ge icon.png
Mods engine smoke screen system.png
ESS
Research:
11 000 Rp icon.png
Cost:
17 000 Sl icon.png
360 Ge icon.png
Mods dozer blade.png
Dozer Blade
Research:
11 000 Rp icon.png
Cost:
17 000 Sl icon.png
360 Ge icon.png
Mods new tank horizontal aiming.png
Horizontal Drive
Research:
11 000 Rp icon.png
Cost:
17 000 Sl icon.png
360 Ge icon.png
Mods tank cannon.png
Adjustment of Fire
Research:
9 500 Rp icon.png
Cost:
15 000 Sl icon.png
310 Ge icon.png
Mods new tank vertical aiming.png
Elevation Mechanism
Research:
14 000 Rp icon.png
Cost:
22 000 Sl icon.png
460 Ge icon.png
Mods night vision device.png
NVD
Research:
11 000 Rp icon.png
Cost:
17 000 Sl icon.png
360 Ge icon.png

Armaments

Night vision device
Improves visibility by enhancing natural light or active illumination.

Main armament

125 mm D-126 gun-launcher
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
Ammunition24 rounds
First-order7 rounds
Reload6.0 s
Vertical guidance-5° / 18°
Main article: D-126 (125 mm)

The 775 is armed with the 125mm D-126 gun-launcher system. This weapon will be very familiar to tankers who have played the M551 Sheridan before, as the primary ammunition is an ATGM and an HE round. The barrel is very short, helping maintain the stealth of the vehicle. The turret traverse is not very fast so care will need to be taken to pre-aim the gun around any expected enemy avenues of approach.

The Rubin ATGM is a very solid missile, providing users 500mm of penetration while having great speed (550 m/s) and decent range (2.49 miles). The only downside is that right after leaving the barrel, the missile dips down before coming back into the center of the sight, making firing from behind cover difficult.

The BUR High-Explosive rocket is less functional but can be fun to surprise enemies with. The round drops very quickly and there is no laser rangefinder, making anything but point-blank shots an exercise in skill. The warhead contains the equivalent of 3.96kg of TNT, making it a serious threat to lightly armoured targets.

Given how condensed the ammunition is, you can comfortably take a full loadout. The main ammo storage is in the front of the tank, protected by heavily sloped armour and internal fuel tanks. The central autoloader holds eight rounds, allowing you to fire a new projectile every . The autoloader also gets replenished extremely fast so running out of ammo in the carousel is not life-threatening, unlike many other ATGM vehicles.

125 mm D-126 Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Autoloader
Arcade 24 -5°/+18° ±180° Two-plane 17.6 24.4 29.6 32.7 34.8 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
Rubin ATGM 500 500 500 500 500 500
BUR HE 37 37 37 37 37 37
Shell details
Ammunition Type of
warhead
Velocity
(m/s)
Projectile
mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Explosive mass
(TNT equivalent) (kg)
Ricochet
0% 50% 100%
BUR HE 380 22 0.05 0.1 3.96 79° 80° 81°
Missile details
Ammunition Type of
warhead
Velocity
(m/s)
Range
(m)
Projectile
mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Explosive mass
(TNT equivalent) (kg)
Ricochet
0% 50% 100%
Rubin ATGM 550 4,000 28.5 0.05 0.1 4.29 80° 82° 90°

Ammo racks

Full
ammo
1st
rack empty
2nd
rack empty
3rd
rack empty
4th
rack empty
5th
rack empty
6th
rack empty
Visual
discrepancy
24 __ (+__) __ (+__) __ (+__) __ (+__) __ (+__) __ (+__) __

Machine guns

Ammunition2 000 rounds
Belt capacity250 rounds
Reload8.0 s
Fire rate700 shots/min
Main article: PKT (7.62 mm)

The only machine gun the 775 has available is a coaxial 7.62 mm PKT. This weapon is next to useless as open-top vehicles are exceedingly rare and it doesn't have the targeting speed or power to damage any air vehicles.

7.62 mm PKT
Mount Capacity (Belt) Fire rate Vertical Horizontal
Coaxial 2,000 (250) 700 - -

Usage in battles

The Object 775 plays very similarly to the IT-1, another Soviet missile-only tank. However, unlike the IT-1, the Object 775 can also engage somewhat effectively in the CQC if needed. Like most ATGM tank destroyers, being only equipped with the Rubin anti-tank missile can put the Object 775 at a disadvantage in many situations when facing conventional enemies armed with a cannon, but it does have the capacity to excel in certain situations, like setting ambushes.

Close Range Engagement

Unlike the IT-1, the Object 775 has some chance in CQC due to its very low profile, and the adjustable suspension can help to "level" the battlefield. However, the player should carefully consider their options, because once committed to the attack, backing out is difficult due to the signature Soviet horrendous reverse speed.

Needless to say, some attention must be paid to your team status as well, as sometimes an enemy might get very bold if all allies surrounding you have died, and since you only have one launcher, fear is all you have to protect the Object 775 from a large tank squad.

Mid to Long Range Engagement

The mid to long range is the optimal engagement range for many ATGM tank destroyers and the Object 775 is no exception. However, player must use terrain a bit differently, as unlike the IT-1, the Object 775 doesn't have a top mounted launcher to shoot over the hills but a 125 mm D-126 rifled missile launcher.

Pros and cons

Pros:

  • Extremely low profile, as well as an adjustable suspension
  • Mouse-guided ATGMs
  • Fast auto-loader
  • Decent frontal armour

Cons:

  • Only two crew members
  • Autoloader is relatively large
  • Terrible reverse speed
  • Poor depression and elevation angles
  • No heavy calibre machine gun

History

Devblog

In the early 1960s, the USSR began to develop a promising medium tank with guided missile weapons. Engineers from the Chelyabinsk Tractor Plant presented two prototypes for testing of the Object 775 tank, featuring Rubin anti-tank guided missiles, which are launched from the barrel of the tank. In 1968, the project was closed due to the concentration of efforts on the Object 434 tank project (which became the T-64A). The only surviving Object 775 is on display at the Patriot Park in Kubinka near Moscow.

Media

Videos

See also

Other vehicles with gun-launcher systems

External links


USSR tank destroyers
SU-76M  SU-76M · SU-76M (5th Gv.Kav.Corps) · SU-85A
SU-57B  SU-57B · SU-76D
T-34 Derivatives  SU-122 · SU-85 · SU-85M · SU-100 · SU-122P
Heavy Tank Derivatives  SU-100Y · ISU-122 · ISU-122S · SU-152 · ISU-152 · Object 268
SU-100P and Derivatives  SU-100P · Object 120
Wheeled  YaG-10 (29-K)
Airborne  ASU-57 · ASU-85
Rocket  BM-8-24 · BM-13N · BM-31-12
ATGM  IT-1 · Shturm-S · Khrizantema-S
Artillery  2S1 · 2S3M
Other  SU-5-1 · ZiS-30 · SU-122-54 · Object 775
USA  SU-57