Overview
12 Sqn took part in 3 operations during this week, to Wilhelmshaven, Milan and Lorient. Two of these missions were interesting as the Wilhelmshaven raid was the first successfully marked by the Pathfinders using sky-marking (usually the most unsuccessful method) through complete cloud cover using H2S. Lorient was the first where 1000 tons of bombs were dropped on a target by Bomber Command.
Also this week, carrier pigeons were carried for the first time by 12 Sqn, 2 per aircraft. They were kept in a loft at RAF Binbrook and were to be used if the aircraft had a forced landing outside the UK.
One aircraft was lost this week, with all the crew being killed.

Extract from 12 Sqn Diary




Extract from 12 Sqn Appendix to Operational Record Book
