 Munro and Jones were detailed to illuminate and mark La Spezia with their spare TIs and flares, and their Lancasters were also armed with eight 500 lb high-explosive bombs and six 500 lb incendiary containers each.Munro took off at 19.40 to open the attack, Jones at 19.55 to follow on.The weather over La Spezia was cloudless, but there was haze and the Italians seemed to put up a smoke screen.