Nonstop flight route between Grand Forks, North Dakota, United States and Twin Hills, Alaska, United States:
Departure Airport:
Arrival Airport:
Distance from RDR to TWA:
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- About this route
- RDR Airport Information
- TWA Airport Information
- Facts about RDR
- Facts about TWA
- 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 TWA
- List of Nearest Airports to TWA
- Map of Furthest Airports from TWA
- List of Furthest Airports from TWA
About this route:
A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and Twin Hills Airport (TWA), Twin Hills, Alaska, United States would travel a Great Circle distance of 2,587 miles (or 4,163 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 Twin Hills 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 Twin Hills 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: |
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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: | TWA / |
Airport Names: |
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Location: | Twin Hills, Alaska, United States |
GPS Coordinates: | 59°4'27"N by 160°16'30"W |
Area Served: | Twin Hills, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 82 feet (25 meters) |
# of Runways: | 1 |
View all routes: | Routes from TWA |
More Information: | TWA Maps & Info |
Facts about Grand Forks Air Force Base (RDR):
- On 26 May 1972, President Nixon and Soviet general secretary Leonid Brezhnev signed the ABM Treaty, which limited each nation to one site to protect strategic forces and one site to protect the "National Command Authority." With work about 85 percent complete at Grand Forks, the United States chose to finish construction at the North Dakota site.
- Grand Forks Air Force Base was established on 1 December 1955, with construction beginning in the fall of that year.
- 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.
- 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.
- Survey teams selected sites in flat wheatlands close to the Canada-Minnesota border, north-northwest of Grand Forks.
- In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
- During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
- 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.
Facts about Twin Hills Airport (TWA):
- In addition to being known as "Twin Hills Airport", another name for TWA is "A63".
- Twin Hills Airport (TWA) currently has only 1 runway.
- The furthest airport from Twin Hills Airport (TWA) is Cape Town International Airport (CPT), which is located 10,701 miles (17,222 kilometers) away in Cape Town, South Africa.
- Because of Twin Hills Airport's relatively low elevation of 82 feet, planes can take off or land at Twin Hills 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 closest airport to Twin Hills Airport (TWA) is Togiak Airport (TOG), which is located only 5 miles (7 kilometers) WSW of TWA.
- Twin Hills Airport is a state-owned, public-use airport serving Twin Hills, in the Dillingham Census Area of the U.S.