Mark 21 nuclear bomb
E865251
The Mark 21 nuclear bomb was a high-yield thermonuclear weapon developed and deployed by the United States during the early Cold War era.
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
US military equipment
ⓘ
nuclear bomb ⓘ thermonuclear weapon ⓘ |
| armsControlStatus | retired before modern arms control treaties applied ⓘ |
| classification | gravity bomb ⓘ |
| compatibleAircraft |
B‑36 bomber
NERFINISHED
ⓘ
B‑47 bomber NERFINISHED ⓘ B‑52 bomber ⓘ |
| configuration | free‑fall bomb ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| deliveryPlatform | strategic bomber ⓘ |
| deploymentContext | early Cold War strategic arsenal ⓘ |
| deploymentRole | strategic deterrent ⓘ |
| deploymentStart | 1955 ⓘ |
| designBasis |
Ivy Mike device
NERFINISHED
ⓘ
TX‑21 design ⓘ |
| designedIn | United States NERFINISHED ⓘ |
| developedBy |
United States
NERFINISHED
ⓘ
United States Atomic Energy Commission NERFINISHED ⓘ |
| developedFor | United States Air Force NERFINISHED ⓘ |
| era | Cold War ⓘ |
| fuelType | fusion‑boosted thermonuclear fuel ⓘ |
| historicalSignificance | early high‑yield US thermonuclear weapon ⓘ |
| natoCategory | strategic nuclear weapon ⓘ |
| nuclearWeaponType | two‑stage thermonuclear ⓘ |
| numberBuilt | on the order of several hundred units ⓘ |
| purpose | mass‑destruction weapon ⓘ |
| replacedBy | Mark 36 nuclear bomb NERFINISHED ⓘ |
| retired | late 1950s ⓘ |
| safetyFeatures | conventional high explosive implosion system ⓘ |
| serviceEntry | 1955 ⓘ |
| stageCount | two‑stage ⓘ |
| testStatus | design tested in US thermonuclear test series ⓘ |
| usedAsBasisFor | W21 warhead ⓘ |
| usedBy | United States Air Force ⓘ |
| warheadDesignation | W21 NERFINISHED ⓘ |
| weightClass | heavy bomb ⓘ |
| yield | approximately 4 megatons of TNT ⓘ |
| yieldRange | 4–5 megatons of TNT ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.