10 Wellingtons from 431 and 432 Squadrons were ordered out on a mining operation to Lorient. The crews were over the garden at between 400 and 1,500 feet, sowing 18@1500 lb mines. Richard Koval (6bombergroup.ca)
An all Lancaster force of 197, guided by 6 Oboe Mosquitoes made a successful attack on Oberhausen. Despite the target being cloud-covered, accurate sky-marking enabled the bombers to do considerable damage. Twelve Lancasters lifted from Fiskerton's runway, the last one away by 22.32hrs. The crews found themselves engaged in a savage battle from both flak and fighters which resulted in Bomber Command losing 17 aircraft.
Of those missing: Sergeant Frost (ED434) and crew had been shot down by a German night fighter flown by Hauptmann Hans-Dieter Frank I./NJG1. The aircraft fell to the ground 2 kilometers East of Dodewaard, Holland at 01.13hrs. The pilot and flight engineer survived to become POW's in Stalag 357, Kopernikus; the remainder of the crew are buried in Uden War Cemetery.