Nonstop flight route between Tacoma, Washington, United States and Derry, Northern Ireland, United Kingdom:
Departure Airport:
Arrival Airport:
Distance from GRF to LDY:
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- About this route
- GRF Airport Information
- LDY Airport Information
- Facts about GRF
- Facts about LDY
- Map of Nearest Airports to GRF
- List of Nearest Airports to GRF
- Map of Furthest Airports from GRF
- List of Furthest Airports from GRF
- Map of Nearest Airports to LDY
- List of Nearest Airports to LDY
- Map of Furthest Airports from LDY
- List of Furthest Airports from LDY
About this route:
A direct, nonstop flight between Gray Army Airfield (GRF), Tacoma, Washington, United States and City of Derry Airport (LDY), Derry, Northern Ireland, United Kingdom would travel a Great Circle distance of 4,447 miles (or 7,157 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 Gray Army Airfield and City of Derry 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 Gray Army Airfield and City of Derry Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | GRF / KGRF |
| Airport Names: |
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| Location: | Tacoma, Washington, United States |
| GPS Coordinates: | 47°4'45"N by 122°34'50"W |
| Operator/Owner: | U.S. Army ATCA-ASO |
| Airport Type: | Military |
| Elevation: | 300 feet (91 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from GRF |
| More Information: | GRF Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | LDY / EGAE |
| Airport Names: |
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| Location: | Derry, Northern Ireland, United Kingdom |
| GPS Coordinates: | 55°2'34"N by 7°9'42"W |
| Area Served: | Derry, United Kingdom |
| Operator/Owner: | Derry City Council |
| Airport Type: | Public |
| Elevation: | 23 feet (7 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from LDY |
| More Information: | LDY Maps & Info |
Facts about Gray Army Airfield (GRF):
- Used to support Fort Lewis, Army helicopters assisted with medical evacuations at Mount Rainier National Park on numerous occasions in the 1970s.
- The furthest airport from Gray Army Airfield (GRF) is Tôlanaro Airport (FTU), which is located 10,809 miles (17,395 kilometers) away in Tôlanaro, Madagascar.
- Because of Gray Army Airfield's relatively low elevation of 300 feet, planes can take off or land at Gray Army 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.
- In addition to being known as "Gray Army Airfield", another name for GRF is "(Joint Base Lewis-McChord)".
- The Army Air Force closed its facilities in 1947.
- During the Vietnam War, GAAF not only trained helicopter units, but fixed-wing aircraft units as well.
- Gray Army Airfield (GRF) currently has only 1 runway.
- The 1938 construction included two paved runways, a boiler plant, headquarters building, metal balloon hangar, six-plane hangar, corrugated-iron hangar, storehouse, flight-surgeon office, and film-storage building.
- The closest airport to Gray Army Airfield (GRF) is McChord Field/McChord AFB (TCM), which is located only 6 miles (10 kilometers) NE of GRF.
Facts about City of Derry Airport (LDY):
- The closest airport to City of Derry Airport (LDY) is Belfast International Airport (BFS), which is located 46 miles (74 kilometers) SE of LDY.
- In addition to being known as "City of Derry Airport", another name for LDY is "Londonderry/Eglinton Airport[1]".
- In mid-2009 work commenced on dualling the A2 from Maydown to Eglinton and the airport, which now provides a high speed dual carriageway connection to the city.
- The furthest airport from City of Derry Airport (LDY) is Ryan's Creek Aerodrome (SZS), which is located 11,838 miles (19,051 kilometers) away in Stewart Island, New Zealand.
- As of April 2010, it has been reported that the airport has emerged from passenger recession, with passenger numbers released for February of the same year showing an increase over that of the same period for the year before.
- In June 2010 it was announced that the Airport was in the final stages of discussion with the Balfour Beatty Group about a management contract, with the objective of bringing additional commercial experience and resources to the Airport for the economic benefit of the region and to reduce the subvention from the City Council.
- City of Derry Airport (LDY) currently has only 1 runway.
- Because of City of Derry Airport's relatively low elevation of 23 feet, planes can take off or land at City of Derry 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.
- City of Derry Airport handled 384,973 passengers last year.
- Ryanair also discontinued the Bristol route and changed its Derry–East Midlands route to Derry–Birmingham announcing new flights to London Luton and the airport's first scheduled international service to Alicante which commenced in June 2009.
- During 1998 and 1999 safety improvements were undertaken at the airport as a matter of priority.
