The sirens started sounding in Dresden at 21:51 (CET). Wing Commander Maurice Smith, flying in a Mosquito, gave the order to the Lancasters: "Controller to Plate Rack Force: Come in and bomb glow of red target indicators as planned. Bomb the glow of red TIs as planned". The first bombs were released at 22:13, the last at 22:28, the Lancasters delivering 881.1 tons of bombs, 57% high explosive, 43% incendiaries. The fan-shaped area that was bombed was long, and at its extreme about wide. The shape and total devastation of the area was created by the bombers of No. 5 Group flying over the head of the fan (Ostragehege stadium) on prearranged compass bearings and releasing their bombs at different prearranged times.