Nonstop flight route between Blackwater, Queensland, Australia and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from BLT to FSI:
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- About this route
- BLT Airport Information
- FSI Airport Information
- Facts about BLT
- Facts about FSI
- Map of Nearest Airports to BLT
- List of Nearest Airports to BLT
- Map of Furthest Airports from BLT
- List of Furthest Airports from BLT
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Blackwater Airport (BLT), Blackwater, Queensland, Australia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 8,382 miles (or 13,489 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 Blackwater 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 Blackwater 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:
IATA / ICAO Codes: | BLT / YBTR |
Airport Name: | Blackwater Airport |
Location: | Blackwater, Queensland, Australia |
GPS Coordinates: | 23°36'11"S by 148°48'24"E |
Operator/Owner: | BHP Billiton Mitsubishi Alliance |
Airport Type: | Public |
Elevation: | 657 feet (200 meters) |
# of Runways: | 1 |
View all routes: | Routes from BLT |
More Information: | BLT Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Facts about Blackwater Airport (BLT):
- The closest airport to Blackwater Airport (BLT) is Emerald Airport (EMD), which is located 40 miles (64 kilometers) W of BLT.
- Blackwater Airport (BLT) currently has only 1 runway.
- Because of Blackwater Airport's relatively low elevation of 657 feet, planes can take off or land at Blackwater 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 Blackwater Airport (BLT) is Agostinho Neto Airport (NTO), which is located 11,844 miles (19,061 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
Facts about Henry Post Army Airfield (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.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- 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 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.
- 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.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.