The Supermarine B.12/36 was a British prototype four-engine heavy bomber design that was destroyed by enemy action before completion during the Second World War. == Design and development == === Specification === In July 1936 the British Air Ministry issued specification no.
The Supermarine B.12/36 was a British prototype four-engine heavy bomber design that was destroyed by enemy action before completion during the Second World War. == Design and development == === Specification === In July 1936 the British Air Ministry issued specification no.
Source: Wikipedia "Supermarine B.12/36" · CC BY-SA 4.0
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