on centre", no aircraft lost. 21 KM-R 12/09/1944 DL 204 Lancasters 13 Mosquitos STUTTGART , Germany. Industrial target 4 hours, 10 mins Night Attack successful, firestorm occurred.  4 Lancasters lost. 22 KM-R 17/09/1944 DL 370 Lancasters 351 Halifaxes 41 Mosquitos BOULOGNE , France. German garrison . 3 hours, 5 mins Day