Nonstop flight route between Grand Forks, North Dakota, United States and Imperatriz, Maranhão, Brazil:

About this route:

A direct, nonstop flight between Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States and Imperatriz-Prefeito Renato Moreira Airport (IMP), Imperatriz, Maranhão, Brazil would travel a Great Circle distance of 4,772 miles (or 7,679 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 Imperatriz-Prefeito Renato Moreira 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 Imperatriz-Prefeito Renato Moreira Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

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.
• 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 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 1971, the 18th Fighter-Interceptor Squadron was inactivated and the 460th Fighter-Interceptor Squadron replaced the unit.
• During 1965, the wing’s three missile squadrons were activated and crew training and certification began at Vandenberg AFB in southern California.
• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
• In 1973, the 319th Bomb Wing acquired the AGM-69 Short Range Attack Missile, replacing the older AGM-28 Hound Dog air-to-ground missile aboard its B-52H aircraft.
• 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.

Facts about Imperatriz-Prefeito Renato Moreira Airport (IMP):

• In addition to being known as "Imperatriz-Prefeito Renato Moreira Airport", another name for IMP is "Aeroporto de Imperatriz-Prefeito Renato Moreira".
• Imperatriz-Prefeito Renato Moreira Airport (IMP) currently has only 1 runway.
• The closest airport to Imperatriz-Prefeito Renato Moreira Airport (IMP) is João Correa da Rocha Airport (MAB), which is located 116 miles (187 kilometers) W of IMP.
• Imperatriz-Prefeito Renato Moreira Airport handled 323,940 passengers last year.
• Imperatriz has a long tradition of air services, which started with at the end of the 1930s with Syndicato Condor using seaplanes which landed at Tocantins River.
• Because of Imperatriz-Prefeito Renato Moreira Airport's relatively low elevation of 431 feet, planes can take off or land at Imperatriz-Prefeito Renato Moreira 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 Imperatriz-Prefeito Renato Moreira Airport (IMP) is Roman Tmetuchl International Airport (ROR), which is nearly antipodal to Imperatriz-Prefeito Renato Moreira Airport (meaning Imperatriz-Prefeito Renato Moreira Airport is almost on the exact opposite side of the Earth from Roman Tmetuchl International Airport), and is located 12,250 miles (19,714 kilometers) away in Koror, Palau.
• Imperatriz-Prefeito Renato Moreira Airport is the airport serving Imperatriz, Brazil.
• Around the end of the 1960s studies were made for a completely new facility and the site of the present airport was chosen.