A Royal Air Force Avro Lancaster B Mark I (Special) (PB996 'YZ-C') of No. 617 Squadron RAF, flown by Flying Officer P. Martin and crew, releasing a 22,000-lb (10,000 kg) MC deep-penetration bomb (Bomber Command executive codeword 'Grand Slam') over the viaduct at Arnsberg, Germany. The viaduct was attacked on 15 March with one bomb in poor weather, with no hits. It was destroyed four days later, using 6 "Grand Slam" and 13 "Tallboy" bombs.
No 4 RAFFPU, Royal Air Force official photographer
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<td>This photograph <a rel="nofollow" class="external text" href="https://www.iwm.org.uk/collections/item/object/205210719">CH 15375</a> comes from the collections of the <a rel="nofollow" class="external text" href="https://www.iwm.org.uk/">Imperial War Museums</a>.
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