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M55 chemical rocket
Photo: U.S. Army Chemical Materials Agency · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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M55chemicalrocket

Chemical Delivery Systems · United States · 1959
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M55chemicalrocket

M55 chemical rocket
M55 chemical rocket Photo: U.S. Army Chemical Materials Agency · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
MASS (Military Archive Scoring System) 54
* Absolute score — assessed within category · no era adjustment
Dissemination Effectiveness
60
Range
50
Payload / Coverage
55
Accuracy
40
Agent Versatility
70
Reliability
75
Survivability
45
Concealment
80
Technology
50
Strategic Impact
30
Methodology ↗ → Chemical Delivery Systems ranking
Origin United States
CategoryChemical Delivery Systems
EraEarly Cold War
In service1959
Operators1 countries
⬇ Overview
⚙ Specs
⊕ History
⊕ Operators
⚖ MASS Score
📚 Sources
Data Quality84%
MASS(Military Archive Scoring System)
⊟ Chemical Delivery Systemsranking ↗methodology ↗
54
Chemical Delivery Systems MASS Rating
1/1
Early Cold War
1/3
All-Time
Chemical Delivery Systems · 10 axes scored
Dissemination Effectiveness
60
Range
50
Payload / Coverage
55
Accuracy
40
Agent Versatility
70
Reliability
75
Survivability
45
Concealment
80
Technology
50
Strategic Impact
30
ⓘ Regardless of era, the same scoring system applies to all units in the chemical delivery systems category.
01 / Overview
M55 chemical rocket
Category
Chemical Delivery Systems
Country
United States
Production
1959–
Operators
1 countries
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
CHEMICAL DELIVERY SYSTEMS · EARLY COLD WAR
1
PERFORMANCE/PRICE
65
UNIT COST (2025 USD)
—
MASS SCORE ↗
54
chemical delivery systems category
ⓘ Performance/Price and MASS score are computed across all units in the chemical delivery systems category, regardless of era.
02 / Specs & Design
03 / History
SERVICE LIFESPANStill in Service
  1. 1959Production started
67
years in service
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
United StatesACTIVE
Chemical Delivery Systems Early Cold War United States
📚 Sources
📖 ENCYCLOPEDIA Browse the Chemical Delivery Systems entry →