Lancaster B Mark III, LM449 ‘PG-H’, of No. 619 Squadron RAF based at Coningsby, Lincolnshire, in flight.

I looked down, and the white fires had turned red. They were beginning to merge and spread, just like butter does on a hot plate. Jock and Buzz, the bomb-aimer, began to discuss the target. The smoke was getting thick down below. Buzz said he liked the two green flares on the ground almost dead ahead. He began calling his directions. And just then a new bunch of big flares went down on the far side of the sea of flame and flare that seemed to be directly below us. He thought that would be a better aiming point. Jock agreed and we flew on.