Nonstop flight route between Den Helder, Netherlands and Rockland, Maine, United States:
Departure Airport:

Arrival Airport:

Distance from DHR to RKD:
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- About this route
- DHR Airport Information
- RKD Airport Information
- Facts about DHR
- Facts about RKD
- Map of Nearest Airports to DHR
- List of Nearest Airports to DHR
- Map of Furthest Airports from DHR
- List of Furthest Airports from DHR
- Map of Nearest Airports to RKD
- List of Nearest Airports to RKD
- Map of Furthest Airports from RKD
- List of Furthest Airports from RKD
About this route:
A direct, nonstop flight between De Kooy Airfield (DHR), Den Helder, Netherlands and Knox County Regional Airport (RKD), Rockland, Maine, United States would travel a Great Circle distance of 3,285 miles (or 5,286 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 Knox County Regional 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 De Kooy Airfield and Knox County Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | DHR / EHKD |
Airport Names: |
|
Location: | Den Helder, Netherlands |
GPS Coordinates: | 52°55'24"N by 4°46'50"E |
Operator/Owner: | Royal Netherlands Navy / Den Helder Airport CV |
Airport Type: | Military/Public |
Elevation: | 4 feet (1 meters) |
# of Runways: | 1 |
View all routes: | Routes from DHR |
More Information: | DHR Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | RKD / KRKD |
Airport Name: | Knox County Regional Airport |
Location: | Rockland, Maine, United States |
GPS Coordinates: | 44°3'36"N by 69°5'57"W |
Area Served: | Rockland, Maine |
Operator/Owner: | Knox County |
Airport Type: | Public |
Elevation: | 56 feet (17 meters) |
# of Runways: | 2 |
View all routes: | Routes from RKD |
More Information: | RKD Maps & Info |
Facts about De Kooy Airfield (DHR):
- De Kooy Airfield is an airfield 2.9 NM south of Den Helder, the Netherlands, named after the nearby hamlet De Kooy.
- 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.
- De Kooy Airfield (DHR) currently has only 1 runway.
- There are currently no scheduled services to and from Den Helder.
- 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 Knox County Regional Airport (RKD):
- Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County Regional 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.
- After the war, it was operated by the City of Rockland until 1968.
- Knox County Regional Airport (RKD) has 2 runways.
- The airport was built during World War II and became locally known as the "Ash Point Naval Air Station" while officially operating as Rockland Naval Auxiliary Air Facility from April 15, 1943 until February 1, 1946.
- The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
- The furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.