Nonstop flight route between Grand Forks, North Dakota, United States and Oaktown, Indiana, United States:
Departure Airport:

Arrival Airport:

Distance from RDR to OTN:
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- About this route
- RDR Airport Information
- OTN Airport Information
- Facts about RDR
- Facts about OTN
- Map of Nearest Airports to RDR
- List of Nearest Airports to RDR
- Map of Furthest Airports from RDR
- List of Furthest Airports from RDR
- Map of Nearest Airports to OTN
- List of Nearest Airports to OTN
- Map of Furthest Airports from OTN
- List of Furthest Airports from OTN
About this route:
A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and Ed-Air Airport (OTN), Oaktown, Indiana, United States would travel a Great Circle distance of 801 miles (or 1,288 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 Grand Forks Air Force Base and Ed-Air Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | RDR / KRDR |
Airport Names: |
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Location: | Grand Forks, North Dakota, United States |
GPS Coordinates: | 47°57'39"N by 97°24'3"W |
View all routes: | Routes from RDR |
More Information: | RDR Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | OTN / |
Airport Names: |
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Location: | Oaktown, Indiana, United States |
GPS Coordinates: | 38°51'5"N by 87°29'58"W |
Area Served: | Oaktown, Indiana |
Operator/Owner: | Edward A. Huddleston |
Airport Type: | Private use |
Elevation: | 426 feet (130 meters) |
# of Runways: | 1 |
View all routes: | Routes from OTN |
More Information: | OTN Maps & Info |
Facts about Grand Forks Air Force Base (RDR):
- The furthest airport from Grand Forks Air Force Base (RDR) is Margaret River Airport (MGV), which is located 10,504 miles (16,904 kilometers) away in Margaret River, Western Australia, Australia.
- In addition to the interceptor squadrons, a Semi Automatic Ground Environment Data Center was established at Grand Forks in 1958.
- On 1 November 1964, 321st Strategic Missile Wing was organized as the Minuteman II intercontinental ballistic missile wing at GFAFB, the first in SAC.
- In October 1977, the PAR came under operational control of the USAF, which operated it thereafter as part of its early warning system.
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
- The closest airport to Grand Forks Air Force Base (RDR) is Grand Forks International Airport (GFK), which is located only 10 miles (17 kilometers) E of RDR.
- Due to the continuance of the Cold War between the United States and the Soviet Union, GFAFB was originally an Air Defense Command fighter-interceptor air base.
Facts about Ed-Air Airport (OTN):
- Ed-Air Airport is a private use airport in Knox County, Indiana, United States.
- Ed-Air Airport (OTN) currently has only 1 runway.
- The furthest airport from Ed-Air Airport (OTN) is Margaret River Airport (MGV), which is located 11,138 miles (17,925 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Ed-Air Airport (OTN) is Lawrenceville–Vincennes International Airport (LWV), which is located only 8 miles (13 kilometers) SW of OTN.
- Because of Ed-Air Airport's relatively low elevation of 426 feet, planes can take off or land at Ed-Air 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.
- In addition to being known as "Ed-Air Airport", another name for OTN is "2IG4".