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M1 flamethrower
Photo: Leo P. Brophy, Wyndham D. Miles · Wikimedia Commons · Public domain
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M1flamethrower

Incendiary & Napalm Bombs · United States · 1941
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M1flamethrower

M1 flamethrower
M1 flamethrower Photo: Leo P. Brophy, Wyndham D. Miles · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Area Effect
60
Burn Intensity
70
Coverage
55
Adhesion / Persistence
40
Reliability
75
Versatility
65
Platform Compatibility
80
Psychological Effect
90
Technology
30
Cost-Effectiveness
85
Origin United States
CategoryIncendiary & Napalm Bombs
EraWorld War II
In service1941–1945
Operators4 countries
Quantity13,886
Data Quality88%
MASS(Military Archive Scoring System)
66
Incendiary & Napalm Bombs MASS Rating
7/14
World War II
28/46
All-Time
Incendiary & Napalm Bombs · 10 axes scored
Area Effect
60
Burn Intensity
70
Coverage
55
Adhesion / Persistence
40
Reliability
75
Versatility
65
Platform Compatibility
80
Psychological Effect
90
Technology
30
Cost-Effectiveness
85
ⓘ Regardless of era, the same scoring system applies to all units in the incendiary & napalm bombs category.
01 / Overview
M1 flamethrower
Production
1941–1945
Quantity
13,886
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
INCENDIARY & NAPALM BOMBS · WORLD WAR II
7
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
66
incendiary & napalm bombs category
ⓘ Performance/Price and MASS score are computed across all units in the incendiary & napalm bombs category, regardless of era.
02 / Specs & Design
◎General5MOD.5
  • Munition Typeflamethrower fuel (napalm-infused gasoline)
  • Service Entry Year1941
  • Total Weight33 kg
  • Length1.5 m
  • Diameter200 mm
◈Warhead & Effect1MOD.1
  • Filler Typenapalm-infused gasoline
▣Production2MOD.2
  • Total Production13,886
  • Variants1
03 / History
SERVICE LIFESPANStill in Service
  1. 1939First deployment: World War II
  2. 1941Production started
  3. 1945Production ended
85
years in service
4
years in production
13,886
units produced
3
countries operating
ⓘ The producing country still actively operates it. 1 countries retired it.
04 / Operators
📚 Sources
📖 ENCYCLOPEDIA Browse the Incendiary & Napalm Bombs entry →