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22,000lb Grand Slam Bomb
London, Hangar Five Aircraft & Exhibits
The 22,000lb Grand Slam and the smaller 12,000lb Tallboy were specialist weapons devised by Barnes Wallis. They were designed to penetrate deep into the ground where the explosives created an underground cavern into which the surrounding area, and any nearby structure, would collapse.
The Grand Slam was so big and heavy it could only be carried by specially modified Lancasters, with the bomb bay doors removed to accommodate its large size.
Details
| Object number | 65/O/1125 |
|---|---|
| Production date | 1945 |
| Date in use | 1945-1965 |
| Associated with | |
| Associated places |
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