Nonstop flight route between Grand Forks, North Dakota, United States and Tambor, Costa Rica:
Departure Airport:

Arrival Airport:

Distance from RDR to TMU:
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- About this route
- RDR Airport Information
- TMU Airport Information
- Facts about RDR
- Facts about TMU
- 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 TMU
- List of Nearest Airports to TMU
- Map of Furthest Airports from TMU
- List of Furthest Airports from TMU
About this route:
A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and Tambor Airport (TMU), Tambor, Costa Rica would travel a Great Circle distance of 2,738 miles (or 4,406 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 Grand Forks Air Force Base and Tambor Airport, 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 Grand Forks Air Force Base and Tambor Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | RDR / KRDR |
Airport Names: |
|
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: | TMU / MRTR |
Airport Name: | Tambor Airport |
Location: | Tambor, Costa Rica |
GPS Coordinates: | 9°43'58"N by 85°1'1"W |
Airport Type: | Public |
Elevation: | 33 feet (10 meters) |
# of Runways: | 1 |
View all routes: | Routes from TMU |
More Information: | TMU Maps & Info |
Facts about Grand Forks Air Force Base (RDR):
- During the Cold War, GFAFB was a major installation of the Strategic Air Command, with B-52 bombers, KC-135 tankers, and Minuteman intercontinental ballistic missiles.
- 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.
- During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
- The DC-11 SAGE blockhouse was later the headquarters of the SAC 321st Strategic Missile Wing.
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
- 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 October 1977, the PAR came under operational control of the USAF, which operated it thereafter as part of its early warning system.
- On 1 September 1958, the Strategic Air Command established the 4133d Strategic Wing at Grand Forks as part of its plan to disperse its B-52 heavy bombers over a larger number of bases, thus making it more difficult for the Soviet Union to knock out the entire fleet with a surprise first strike.
- In addition to the interceptor squadrons, a Semi Automatic Ground Environment Data Center was established at Grand Forks in 1958.
- SAGE operations were extremely expansive and GFADS was inactivated on 1 December 1963, when it was merged with the Minot Air Defense Sector at Minot AFB to the west.
Facts about Tambor Airport (TMU):
- The closest airport to Tambor Airport (TMU) is Punta Islita Airport (PBP), which is located 25 miles (40 kilometers) WNW of TMU.
- Because of Tambor Airport's relatively low elevation of 33 feet, planes can take off or land at Tambor 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.
- Tambor Airport (TMU) currently has only 1 runway.
- The furthest airport from Tambor Airport (TMU) is Cocos (Keeling) Island Airport (CCK), which is nearly antipodal to Tambor Airport (meaning Tambor Airport is almost on the exact opposite side of the Earth from Cocos (Keeling) Island Airport), and is located 12,226 miles (19,676 kilometers) away in Cocos Islands, Australia.