In 1965 the Royal Air Force Aerobatic Team, better known as the Red Arrows, began searching for volunteers to become the first Red 8 and Red 9 after choosing to increase the team from 7 aircraft to 9. Group Captain Douglas McGregor (retired), a Gnat instructor, enthusiastically volunteered and was successfully selected as the first Red 9 in 1966. During his time with the Red Arrows, Douglas visited many places across the world including Jordan, Malta, Libya, Cyprus and Beirut. He later flew Harriers during the Cold War.
Summary
You'd be flying four or five feet away from the plane next to you