The 15 October 1944 raid took place with 18 aircraft of 9 Squadron between 09.25 and 09.29. Two aircraft didn’t drop their Tallboys. (9 Sqn ORB)
The effect on people on the ground of 15 Tallboys exploding in a valley in less than 5 minutes is unimaginable.

Thank you for the useful reply; much appreciated! Without raising a moral question, was the purpose a terror attack, or was there another goal? Do you know if there is further reading available?

Dambusters follow-up raid

The above picture, are those Tallboy hits? The bouncing bomb had to be dropped in water to explode?

The picture above is from after the October 1944 attack with Tallboys. The picture below is from the May 1943 attack. During the May 1943 attack two bouncing bombs were dropped (without bouncing) on the water side of the dam. There was a huge splash, but no (serious) damage.

result of the first raid on the Sorpe dam

Does anyone know where to find authoritative information why the Sorpe dam was attacked again in isolation on October 15, 1944, one and a half years after the first raid?

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