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Proton-K
Photo: NASA · Wikimedia Commons · Public domain
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Proton-K

Military Space Launch Vehicles · Russia · 1967
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Proton-K

Proton-K
Proton-K Photo: NASA · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Payload Capacity
75
Reliability
60
Cost-Efficiency
50
Responsiveness / Cadence
40
Reusability
0
Orbit Versatility
65
Precision
55
Technology
70
Strategic Value
80
Human-Rating
60
Origin Russia
CategoryMilitary Space Launch Vehicles
EraCold War
In service1967–2012
Operators1 countries
Quantity310
Data Quality83%
57
Military Space Launch Vehicles MASS Rating
10/96
Cold War
46/296
All-Time
Military Space Launch Vehicles · 10 axes scored
Payload Capacity
75
Reliability
60
Cost-Efficiency
50
Responsiveness / Cadence
40
Reusability
0
Orbit Versatility
65
Precision
55
Technology
70
Strategic Value
80
Human-Rating
60
ⓘ Regardless of era, the same scoring system applies to all units in the military space launch vehicles category.
01 / Overview
Proton-K
Country
Production
1967–2012
Quantity
310
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MILITARY SPACE LAUNCH VEHICLES · COLD WAR
10
PERFORMANCE/PRICE
45
UNIT COST (2025 USD)
—
57
military space launch vehicles category
ⓘ Performance/Price and MASS score are computed across all units in the military space launch vehicles category, regardless of era.
02 / Specs & Design
◎General6MOD.6
  • Vehicle TypeHeavy-lift launch vehicle
  • First Flight1967
  • ManufacturerKhrunichev
  • Stages3
  • StatusRetired
  • In ServiceNo
◈Performance6MOD.6
  • Payload to LEO19,760 kg
  • Liftoff Thrust10,470
  • Liftoff Mass669.095 t
  • Height50 m
  • Diameter7.4 m
  • Success Rate275
▣Propulsion5MOD.5
03 / History
SERVICE LIFESPANRetired
  1. 1967Production started
  2. 2012Production ended
59
years in service
45
years in production
310
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Variants
▚ WEAPON FAMILY
Proton 1965
Proton-K 1967
// SIBLING VARIANTS
Proton-M 2001
05 / Operators
Operator Countries1country
📚 Sources
📖 ENCYCLOPEDIA Browse the Military Space Launch Vehicles entry →