North Atlantic Tracks - Concorde

Concorde

Concorde did not travel on the North Atlantic Tracks as it flew to the United States from the United Kingdom and France from a much higher altitude, between 45,000 ft and 60,000 ft, its relatively high service ceiling. The weather variations at these altitudes were so minor that Concorde followed the same route each day, traveling to and from Europe to North America on fixed tracks. These fixed tracks were known as 'Track Sierra Mike' (SM) and 'Track Sierra Oscar' (SO) for westbound flights and 'Track Sierra November' (SN) for eastbounds. An additional route, 'Track Sierra Papa' (SP), was used for seasonal British Airways flights from London Heathrow to/from Barbados.