sentences:  In 1956 the airline was reorganised as Kar-Air OY and started operations in January 1957.A Swedish subsidiary was established, which from 1961 onwards operated a single Douglas DC-6 on chartered flights to Southern Europe.In 1962, Aero O/Y acquired a 27 percent stake in Kar-Air, which was increased to 51 percent over the following years, since Kar-Air had encountered financial difficulties when its two "Metropolitans" were damaged in hard landings and had to be taken out of service for a period in 1963.