Nonstop flight route between College Park, Maryland, United States and Port Alexander, Alaska, United States:
Departure Airport:
Arrival Airport:
Distance from CGS to PTD:
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- About this route
- CGS Airport Information
- PTD Airport Information
- Facts about CGS
- Facts about PTD
- Map of Nearest Airports to CGS
- List of Nearest Airports to CGS
- Map of Furthest Airports from CGS
- List of Furthest Airports from CGS
- 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 College Park Airport (CGS), College Park, Maryland, United States and Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States would travel a Great Circle distance of 2,839 miles (or 4,569 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 College Park Airport 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 College Park Airport 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: | CGS / KCGS |
| Airport Name: | College Park Airport |
| Location: | College Park, Maryland, United States |
| GPS Coordinates: | 38°58'50"N by 76°55'20"W |
| Operator/Owner: | Maryland-National Capital Park & Planning Commission |
| Airport Type: | Public |
| Elevation: | 48 feet (15 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CGS |
| More Information: | CGS Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | PTD / PAAP |
| Airport Names: |
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| 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 College Park Airport (CGS):
- In 1915 Cecil Peoli, one of the world's first professional aviators, died testing his 12-cylinder Rausenburger-powered biplane at College Park in preparation for New York and St.
- The closest airport to College Park Airport (CGS) is Bolling Air Force Base (BOF), which is located only 11 miles (17 kilometers) SSW of CGS.
- Civilian aviation began at College Park with Rex Smith, an inventor and patent attorney, who operated the Rex Smith Aeroplane Company.
- College Park Airport (CGS) currently has only 1 runway.
- The College Park Aviation Museum houses antique and reproduction aircraft associated with the history of College Park Airport.
- Because of College Park Airport's relatively low elevation of 48 feet, planes can take off or land at College Park 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.
- From 1927 until 1933, the Bureau of Standards developed and tested the first radio navigational aids for use in "blind" or bad weather flying.
- The furthest airport from College Park Airport (CGS) is Margaret River Airport (MGV), which is located 11,684 miles (18,803 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Port Alexander Seaplane Base (PTD):
- 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.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
- 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.
- In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
- Port Alexander Seaplane Base is a state owned, public use seaplane base located in Port Alexander, a city at the southeastern corner of Baranof Island in the Petersburg Census Area of the U.S.
