Data Quality87%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the tanks category.
01 / Overview
T-55S1
Category
Country
Production
1965–1975
Quantity
2,500
Unit Price (current)
$2.4M↗ 1084% inflation · 1956→2025
Original Price
$200.0K (1956)
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
TANKS · COLD WAR
68
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
$2.4M
Original: $200.0K (1956)
Inflation: +%1084
ⓘ Performance/Price and MASS score are computed across all units in the tanks category, regardless of era.
02 / Specs & Design
◎General5MOD.5
- Tank ClassificationMedium Tank
- GenerationCold War
- Combat Weight36 t
- Crew Size4
- Service Entry Year1961
◈Firepower9MOD.9
- Main Gun Calibre100 mm
- Main Gun TypeRifled
- Main Gun Length (Calibres)53
- Muzzle Velocity (Max)880 m/s
- Effective Range (Main Gun)2,000 m
- Ammunition Stowage43
- Can Fire APFSDSYes
- Can Fire ATGMNo
- Coaxial / Secondary MG Count1
▣Protection7MOD.7
- Armour TypeWelded Rolled Homogeneous Armour (RHA)
- Frontal RHA Equivalent (KE)200 mm
- Frontal RHA Equivalent (CHEM)150 mm
- Has ERANo
- Has APSNo
- NBC ProtectionYes
- Smoke GrenadesYes
◇Mobility8MOD.8
- Engine Power581 hp
- Power-to-Weight Ratio16.1 hp/t
- Fuel TypeDiesel
- Transmission TypeManual
- Suspension TypeTorsion Bar
- Max Road Speed51 km/h
- Max Off-Road Speed35 km/h
- Operational Range (Road)325 km
◆Dimensions5MOD.5
- Length (Hull)6 m
- Length (Overall, Gun Forward)9 m
- Width3.15 m
- Height2.4 m
- Ground Clearance0.425 m
▤Electronics & Optics8MOD.8
⬢Amphibious & Special3MOD.3
- Snorkel / Deep Wading Depth1.5 m
- Mine Plough CapabilityNo
- Dozer Blade CapabilityNo
▲Production & Service2MOD.2
- Years in Production18 year
- Notable Variants Count12
03 / History
SERVICE LIFESPANStill in Service
- 1965Production started
- 1975Production ended
61
years in service
10
years in production
2,500
units produced
3
countries operating
ⓘ 18 countries retired it.
04 / Operators
T-55S1SALES1records
| Year | Buyer | Quantity | Amount | Present Value (2025) |
|---|---|---|---|---|
| — | — | — | — |
ⓘ "Present Value" is an estimated amount adjusted for inflation.
05 / MASS Score
TANKS RANKING Tanks · Cold War
MASS RANKINGSMASS ↗
230TANKS68COLD WAR · TANKS3SLOVENIA · ALL WEAPONS50PRICE · TANKS582PRICE · ALL WEAPONS62PERFORMANCE/PRICE · TANKS
ⓘ Rankings are within theTankscategory.
📖 TERMS ON THIS PAGE11terms
Armour-piercing fin-stabilized discarding sabot: a type of kinetic energy penetrator ammunition.
Type of internal combustion engine fuel, refined from crude oil.
Manual: a tank transmission in which the driver selects gear changes manually, typically using a clutch pedal and gear lever to engage gears.
A fire control system relying on optical sights and manual input for aiming and range estimation without computer assistance.
A tank with medium weight and armor, balancing mobility and firepower.
Nuclear, Biological, Chemical protection for tank crews.
Enhanced low-light visibility through specialized optics or sensors.
A rifled gun has spiral grooves cut into its barrel.
Handheld or vehicle-mounted devices that release dense smoke to obscure vision, conceal movements, or screen friendly forces from enemy observation.
A torsion bar is a steel rod that resists twisting and serves as a spring in tank suspensions, with one end fixed to the hull and the other connected to a lever arm moving the road wheel.
Armour made by welding and rolling homogeneous steel plates.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources