Only after the beginning of the Second World War, when more means were made available, slowly production started: three units were made in February 1940, nine in March, fifteen in April and thirteen in May. On the forty hulls produced, not a single turret had been fitted however. After the German invasion an emergency plan was considered to equip them with a 25 mm gun; in the end some were in June sent to the front armed only with a makeshift machine-gun mount and others remained at the factory. That month probably about another seven hulls were finished.