133 Halifaxes from 408, 415, 420, 425, 426, 431, 432, and 434 squadrons were joined by 31 Lancasters from 419 and 428 squadron on an attack gun emplacements and troops at Calais. The crews were over the target at between 6,000 and 8,000 feet, releasing 1,710,000 lbs of high explosives. According to reports, bombing was accurate with the desired affect.

F/O D. Stewart from 415 squadron did not bomb as the load hung up over the target.

F/Lt T. Nichol-Carne and F/O R. Dench from 428 squadron did not bomb on the master bombers orders.

F/O H. Williamson from 431 squadron did not bomb on the master bombers orders.

Sgt J. Hamilton from 432 squadron was hit by flak, the elevators were damaged and hydraulics u/s. They landed safely at Manston on return.