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Red Snow
Photo: Jerzy Strzelecki · Wikimedia Commons · CC BY-SA 3.0
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RedSnow

Nuclear Warheads · United Kingdom · 1958
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RedSnow

Red Snow
Red Snow Photo: Jerzy Strzelecki · Wikimedia Commons · CC BY-SA 3.0
* Absolute score — assessed within category · no era adjustment
Yield
95
Yield-to-Weight Efficiency
90
Deliverability
80
Safety
70
Reliability
85
Miniaturization
80
Survivability
75
Variable-Yield Flexibility
60
Strategic Impact
95
Technology
85
Origin United Kingdom
CategoryNuclear Warheads
EraEarly Cold War
In service1958–1972
Operators2 countries
Quantity150
Data Quality85%
MASS(Military Archive Scoring System)
85
Nuclear Warheads MASS Rating
2/13
Early Cold War
5/51
All-Time
Nuclear Warheads · 10 axes scored
Yield
95
Yield-to-Weight Efficiency
90
Deliverability
80
Safety
70
Reliability
85
Miniaturization
80
Survivability
75
Variable-Yield Flexibility
60
Strategic Impact
95
Technology
85
ⓘ Regardless of era, the same scoring system applies to all units in the nuclear warheads category.
01 / Overview
Red Snow
Production
1958–1972
Quantity
150
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
NUCLEAR WARHEADS · EARLY COLD WAR
2
PERFORMANCE/PRICE
70
UNIT COST (2025 USD)
—
85
nuclear warheads category
ⓘ Performance/Price and MASS score are computed across all units in the nuclear warheads category, regardless of era.
02 / Specs & Design
◎General3MOD.3
  • Warhead Typethermonuclear
  • Service Entry Year1961
  • In ServiceNo
▣Delivery5MOD.5
◆Production3MOD.3
  • Number Built150
  • Designer / LabAtomic Weapons Establishment
  • Operators1
03 / History
SERVICE LIFESPANRetired
  1. 1958Production started
  2. 1972Production ended
68
years in service
14
years in production
150
units produced
0
countries operating
ⓘ 2 countries retired it.
04 / Operators
Operator Countries2country
📖 TERMS ON THIS PAGE5terms
A gravity bomb is a type of bomb that relies on gravity to guide it to its target, using no thrust or lift during its descent.
Explosive payload of a missile, designed to inflict damage on a target.
Relating to nuclear weapons that derive destructive power from both fission and fusion reactions, typically used in intercontinental ballistic missiles.
A nuclear warhead feature allowing adjustable explosive yield, typically via selectable charge configurations, to optimize effects for different targets.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Nuclear Warheads entry →