From the first blueprints arriving to the first test flight took only 16 months, an impressive accomplishment, not lost on Avro (UK) management. The Malton work force climbed from 3,300 (1942) to 9,521 in 1944, most of them initially unskilled workers and about a quarter of them women. Almost exactly a year to the day from when the "pattern" aircraft was flown to Canada, the Canadian prototype, (serial number KB700), rolled off the Victory Aircraft assembly line on 1 August 1943. Named the "Ruhr Express," much publicity was made of its christening, first flight and its departure (albeit delayed as the prototype was wheeled out missing some of its essential gear and was barely able to fly) to England. Nevertheless, the Avro Lancaster setting off for war was an occasion for which the country could be proud.