In 1943 the third York prototype was converted to be Winston Churchill's personal transport. It was called the Ascalon. It was only York to have square windows.
The No. 24 Squadron flew the Prime Minister and other cabinet members to meetings in Moscow, Yalta, and Tehran.
King George VI was flow to North Africa for a tour in 1943.
Post World War II
After World War II the York was delivered up until April 1948 to the Royal Air Force.
From 1948 - 1949 Yorks were used in the Berlin Airlift.
The Avro Yorks served until 1957.