Nonstop flight route between Hartley Bay, British Columbia, Canada and Fort Sill, Oklahoma, United States:

About this route:

A direct, nonstop flight between Hartley Bay Water Aerodrome (YTB), Hartley Bay, British Columbia, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,980 miles (or 3,187 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 relatively short distance between Hartley Bay Water Aerodrome and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Hartley Bay Water Aerodrome (YTB):

• In addition to being known as "Hartley Bay Water Aerodrome", another name for YTB is "CAY4".
• The closest airport to Hartley Bay Water Aerodrome (YTB) is Kitkatla Water Aerodrome (YKK), which is located 55 miles (89 kilometers) WNW of YTB.
• Because of Hartley Bay Water Aerodrome's relatively low elevation of 0 feet, planes can take off or land at Hartley Bay Water Aerodrome 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 Hartley Bay Water Aerodrome (YTB) is Port Alfred Airport (AFD), which is located 10,633 miles (17,113 kilometers) away in Port Alfred, South Africa.

Facts about Henry Post Army Airfield (FSI):

• In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
• Post Field served as a base for flight training for the Air Service.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• 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.
• 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.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.