Grand Slam

E661527

Grand Slam is a massive British World War II "earthquake" bomb designed by Barnes Wallis to penetrate and destroy heavily fortified targets such as bunkers and viaducts.

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Statements (44)

Predicate Object
instanceOf World War II weapon
conventional bomb
earthquake bomb
alsoKnownAs Ten Ton Bomb NERFINISHED
conflict World War II
surface form: Second World War
constructionType steel-cased bomb
countryOfOrigin United Kingdom
deliveryPlatform Avro Lancaster bomber NERFINISHED
deploymentMethod dropped from high altitude
free-fall bomb
designedBy Vickers-Armstrongs (manufacture under Wallis design) NERFINISHED
designedTo cause underground shock waves
destroy bunkers
destroy viaducts
penetrate heavily fortified targets
designer Barnes Wallis NERFINISHED
detonationMode delayed-action fuze
developmentPurpose defeat targets impervious to ordinary bombs
diameter about 1.17 meters
about 3.8 feet
effectType cratering
seismic shock
era 1940s
explosiveFilling Torpex D1 NERFINISHED
explosiveFillingMass approximately 4350 kilograms
approximately 9600 pounds
fillingMethod cast explosive filling
introducedInYear 1945
length about 26 feet
about 7.7 meters
mass approximately 10000 kilograms
approximately 22000 pounds
notableFeature one of the largest conventional bombs used in World War II
operationalUse attacks on German viaducts
attacks on U-boat pens
attacks on hardened structures
attacks on submarine shelters
relatedWeapon Tallboy bomb NERFINISHED
specificCarrierVariant Lancaster B.Mk I Special NERFINISHED
targetType bridges
bunkers
railway infrastructure
reinforced concrete structures
usedBy Royal Air Force

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.