Nonstop flight route between Den Helder, Netherlands and Grand Forks, North Dakota, United States:

About this route:

A direct, nonstop flight between De Kooy Airfield (DHR), Den Helder, Netherlands and Grand Forks Air Force Base (RDR), Grand Forks, North Dakota, United States would travel a Great Circle distance of 4,112 miles (or 6,617 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 De Kooy Airfield and Grand Forks Air Force Base, 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 De Kooy Airfield and Grand Forks Air Force Base. 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 De Kooy Airfield (DHR):

• De Kooy Airfield (DHR) currently has only 1 runway.
• De Kooy Airfield is an airfield 2.9 NM south of Den Helder, the Netherlands, named after the nearby hamlet De Kooy.
• Most movements on the De Kooy are made by helicopters, bringing workers to and from offshore oilrigs and naval helicopters such as the Westland Lynx or NH90 of the Royal Netherlands Navy.
• The furthest airport from De Kooy Airfield (DHR) is Chatham Islands (CHT), which is located 11,805 miles (18,998 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In addition to being known as "De Kooy Airfield", other names for DHR include "Vliegveld De Kooy", "Den Helder Airport" and "Maritiem Vliegkamp De Kooy".
• The closest airport to De Kooy Airfield (DHR) is Amsterdam Airport Schiphol (AMS), which is located 43 miles (68 kilometers) S of DHR.
• Because of De Kooy Airfield's relatively low elevation of 4 feet, planes can take off or land at De Kooy Airfield 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.

Facts about Grand Forks Air Force Base (RDR):

• With the restructuring of the Air Force and the disestablishment of SAC in 1992, the wing transferred to Air Combat Command, then came under Air Force Space Command in 1993.
• In addition to being known as "Grand Forks Air Force Base", another name for RDR is "Grand Forks AFB".
• 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.
• 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.
• In October 1977, the PAR came under operational control of the USAF, which operated it thereafter as part of its early warning system.
• The DC-11 SAGE blockhouse was later the headquarters of the SAC 321st Strategic Missile Wing.
• 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.