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GrandSlam

General Purpose (Iron) Bombs · United Kingdom · 1945
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GrandSlam

Grand Slam
Grand Slam Photo: Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Lethality
85
Reliability
70
Versatility
30
Platform Compatibility
50
Penetration
90
Guidance-Kit Compatibility
0
Availability
40
Effect Radius
60
Technology
30
Cost-Effectiveness
55
Origin United Kingdom
ManufacturerVickers, Vickers-Armstrongs
CategoryGeneral Purpose (Iron) Bombs
EraWorld War II
In service1945–1945
Operators1 countries
Quantity42
Data Quality85%
58
General Purpose (Iron) Bombs MASS Rating
10/17
World War II
67/111
All-Time
General Purpose (Iron) Bombs · 10 axes scored
Lethality
85
Reliability
70
Versatility
30
Platform Compatibility
50
Penetration
90
Guidance-Kit Compatibility
0
Availability
40
Effect Radius
60
Technology
30
Cost-Effectiveness
55
ⓘ Regardless of era, the same scoring system applies to all units in the general purpose (iron) bombs category.
01 / Overview
Grand Slam
Prime contractor
Production
1945–1945
Quantity
42
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
GENERAL PURPOSE (IRON) BOMBS · WORLD WAR II
10
PERFORMANCE/PRICE
45
UNIT COST (2025 USD)
—
58
general purpose (iron) bombs category
ⓘ Performance/Price and MASS score are computed across all units in the general purpose (iron) bombs category, regardless of era.
02 / Specs & Design
◎General5MOD.5
  • Munition Typeearthquake bomb
  • Service Entry Year1945
  • Total Weight9,980 kg
  • Length7.925 m
  • Diameter920 mm
◈Warhead & Effect5MOD.5
▣Platform1MOD.1
  • Compatible AircraftAvro Lancaster
◇Production3MOD.3
  • Total Production99
  • Operators1
  • Variants42
◆Warhead Detail1MOD.1
  • Explosive Filler Weight4,170 kg
03 / History
SERVICE LIFESPANStill in Service
  1. 1939First deployment: World War II
  2. 1945Production started
81
years in service
0
years in production
42
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE1terms
A bomb designed to penetrate hardened targets, such as bunkers, before detonating.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the General Purpose (Iron) Bombs entry →