Nonstop flight route between Okinawa Prefecture, Japan and Port Protection, Alaska, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from DNA to PPV:
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- About this route
- DNA Airport Information
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- List of Furthest Airports from DNA
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About this route:
A direct, nonstop flight between Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (DNA), Okinawa Prefecture, Japan and Port Protection Seaplane Base (PPV), Port Protection, Alaska, United States would travel a Great Circle distance of 5,033 miles (or 8,100 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 Kadena Air Base 嘉手納飛行場 Kadena Hikōjō and Port Protection 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 Kadena Air Base 嘉手納飛行場 Kadena Hikōjō and Port Protection 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: | DNA / RODN | 
| Airport Names: | 
 | 
| Location: | Okinawa Prefecture, Japan | 
| GPS Coordinates: | 26°21'6"N by 127°46'9"E | 
| View all routes: | Routes from DNA | 
| More Information: | DNA Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | PPV / | 
| Airport Names: | 
 | 
| Location: | Port Protection, Alaska, United States | 
| GPS Coordinates: | 56°19'44"N by 133°36'36"W | 
| Area Served: | Port Protection, Alaska | 
| Operator/Owner: | State of Alaska DOT&PF - Southeast Region | 
| Airport Type: | Public | 
| Elevation: | 0 feet (0 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from PPV | 
| More Information: | PPV Maps & Info | 
Facts about Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (DNA):
- The designation of the wing changed on 1 October 1991 to the 18th Wing with the implementation of the Objective Wing concept.
- On 30 June 1959 an F-100 from the wing crashed on Okinawa during a training flight after suffering an engine fire.
- On 7 June 1946, Headquarters Eighth Air Force moved without personnel or equipment to MacDill AAF, Florida.
- In addition to being known as "Kadena Air Base 嘉手納飛行場 Kadena Hikōjō", another name for DNA is "Kadena AFB".
- The closest airport to Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (DNA) is Naha Airport (OKA), which is located only 13 miles (21 kilometers) SW of DNA.
- The furthest airport from Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (DNA) is Paulo Abdala Airport (FBE), which is nearly antipodal to Kadena Air Base 嘉手納飛行場 Kadena Hikōjō (meaning Kadena Air Base 嘉手納飛行場 Kadena Hikōjō is almost on the exact opposite side of the Earth from Paulo Abdala Airport), and is located 12,381 miles (19,926 kilometers) away in Francisco Beltrao, Paraná, Brazil.
- The Korean War emphasized the need for maintaining a naval presence in Okinawa.
- Kadena Air Base, is a United States Air Force base in the towns of Kadena and Chatan and the city of Okinawa, in Okinawa Prefecture, Japan.
Facts about Port Protection Seaplane Base (PPV):
- The closest airport to Port Protection Seaplane Base (PPV) is Point Baker Seaplane Base (KPB), which is located only 2 miles (3 kilometers) NNW of PPV.
- Port Protection Seaplane Base (PPV) currently has only 1 runway.
- Because of Port Protection Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Protection 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.
- The furthest airport from Port Protection Seaplane Base (PPV) is Port Alfred Airport (AFD), which is located 10,611 miles (17,077 kilometers) away in Port Alfred, South Africa.
- In addition to being known as "Port Protection Seaplane Base", another name for PPV is "19P".




