Reminded me to listen to this again..
Recorded on May 19th 1942, but keep that under your hat. They were off to Mannheim -
197 aircraft - 105 Wellingtons, 31 Stirlings, 29 Halifaxes, 15 Hampdens, 13 Lancasters, 4 Manchesters. 11 aircraft - 4 Halifaxes, 4 Stirlings, 3 Wellingtons - lost.
155 aircraft reported hitting Mannheim but most of their bombing photographs showed forests or open country. A concentrated group of about 600 incendiaries in the harbour area on the Rhine burnt out 4 small industrial concerns. Only light damage was caused elsewhere. The only fatal casualties were 2 firemen.