Avro managed to sell 208 military Yorks, but on civil aviation it wasn't any success, with only 50 operational units. But yet it was a very versatile aircraft, and it served as Winston Churchill's private aircraft (with an pressurised chamber so VIP passangers could be carried without masks) and as the Duke of Gloucester's (Australia's Governor-General).
The York had just one significant accident, which occured when the marshall Traford Leigh-Mallory fell on the French Alps during a Blizzard, dying with his family on board. while he was being tranfered to Ceylon to take the lead of the allied troops in the Pacific.
The aircraft had three main versions: the York I, which was a civilian 4-engine transport, the York C.I, a 4-engine military transport, and the York C.II, with Hercules radial engines.