Nonstop flight route between Eirunepe, Amazonas, Brazil and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Amaury Feitosa Tomaz Airport (ERN), Eirunepe, Amazonas, Brazil and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 3,405 miles (or 5,481 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Amaury Feitosa Tomaz Airport and Henry Post Army Airfield, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Amaury Feitosa Tomaz Airport and Henry Post Army Airfield. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Amaury Feitosa Tomaz Airport (ERN):

• In addition to being known as "Amaury Feitosa Tomaz Airport", another name for ERN is "Aeroporto Amaury Feitosa Tomaz".
• Amaury Feitosa Tomaz Airport (ERN) currently has only 1 runway.
• Because of Amaury Feitosa Tomaz Airport's relatively low elevation of 412 feet, planes can take off or land at Amaury Feitosa Tomaz Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The furthest airport from Amaury Feitosa Tomaz Airport (ERN) is Ranai Airport (NTX), which is nearly antipodal to Amaury Feitosa Tomaz Airport (meaning Amaury Feitosa Tomaz Airport is almost on the exact opposite side of the Earth from Ranai Airport), and is located 12,214 miles (19,656 kilometers) away in Natuna, Riau Islands, Indonesia.
• The closest airport to Amaury Feitosa Tomaz Airport (ERN) is Tabatinga International Airport (TBT), which is located 165 miles (265 kilometers) N of ERN.

Facts about Henry Post Army Airfield (FSI):

• By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
• Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
• With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.