Nonstop flight route between Camp Springs, Maryland, United States and Port Alexander, Alaska, United States:
Departure Airport:
Arrival Airport:
Distance from ADW to PTD:
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- About this route
- ADW Airport Information
- PTD Airport Information
- Facts about ADW
- Facts about PTD
- Map of Nearest Airports to ADW
- List of Nearest Airports to ADW
- Map of Furthest Airports from ADW
- List of Furthest Airports from ADW
- Map of Nearest Airports to PTD
- List of Nearest Airports to PTD
- Map of Furthest Airports from PTD
- List of Furthest Airports from PTD
About this route:
A direct, nonstop flight between Andrews Field (ADW), Camp Springs, Maryland, United States and Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States would travel a Great Circle distance of 2,850 miles (or 4,586 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 Andrews Field and Port Alexander Seaplane 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 Andrews Field and Port Alexander Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ADW / KADW |
| Airport Name: | Andrews Field |
| Location: | Camp Springs, Maryland, United States |
| GPS Coordinates: | 38°48'38"N by 76°52'0"W |
| View all routes: | Routes from ADW |
| More Information: | ADW Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | PTD / PAAP |
| Airport Names: |
|
| Location: | Port Alexander, Alaska, United States |
| GPS Coordinates: | 56°14'48"N by 134°38'53"W |
| Area Served: | Port Alexander, Alaska |
| Operator/Owner: | Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from PTD |
| More Information: | PTD Maps & Info |
Facts about Andrews Field (ADW):
- There are two runways on the base.
- In October 1977, the 76th Airlift Division became the 76th Military Airlift Wing.
- The furthest airport from Andrews Field (ADW) is Margaret River Airport (MGV), which is located 11,691 miles (18,815 kilometers) away in Margaret River, Western Australia, Australia.
- Andrews Field is the airfield portion of Joint Base Andrews which is under the jurisdiction of the United States Air Force.
- In 1963, the Naval Air Facility, originally established at the former NAS Anacostia in 1919, moved to Andrews.
- The airfield had 5,500 feet runways by 1944 when the 90th Fighter Control Squadron was formed, and the last Camp Springs combat units departed for WWII combat on 10 April 1944.
- The closest airport to Andrews Field (ADW) is Bolling Air Force Base (BOF), which is located only 8 miles (13 kilometers) WNW of ADW.
Facts about Port Alexander Seaplane Base (PTD):
- Port Alexander Seaplane Base has one seaplane landing area designated N/S which measures 3,000 by 300 feet.
- The furthest airport from Port Alexander Seaplane Base (PTD) is Port Alfred Airport (AFD), which is located 10,640 miles (17,123 kilometers) away in Port Alfred, South Africa.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
- The closest airport to Port Alexander Seaplane Base (PTD) is Point Baker Seaplane Base (KPB), which is located 40 miles (64 kilometers) E of PTD.
- Because of Port Alexander Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Alexander Seaplane Base 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 "Port Alexander Seaplane Base", another name for PTD is "AHP".
