Nonstop flight route between Tonopah, Nevada, United States and Kobuk, Alaska, United States:

About this route:

A direct, nonstop flight between Tonopah Test Range Airport (XSD), Tonopah, Nevada, United States and Kobuk Airport (OBU), Kobuk, Alaska, United States would travel a Great Circle distance of 2,543 miles (or 4,092 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 Tonopah Test Range Airport and Kobuk 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 Tonopah Test Range Airport and Kobuk Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Tonopah Test Range Airport (XSD):

• It is known that the USAF continues a Foreign Materiel Acquisition/Exploitation program, although the extent of acquisitions and operations of that program is not available.
• None of the Soviet-designed aircraft at Tonopah flew in bad weather or at night.
• The closest airport to Tonopah Test Range Airport (XSD) is Tonopah Airport (TPH), which is located 25 miles (40 kilometers) NW of XSD.
• The MiG-21 posed a major threat to Israeli Air Defenses as well as to American pilots over the skies of North Vietnam.
• The earliest known depiction of the airfield was on the July 1970 Air Force Tactical Pilotage Chart.
• The furthest airport from Tonopah Test Range Airport (XSD) is Pierrefonds Airport (ZSE), which is located 11,207 miles (18,036 kilometers) away in Saint-Pierre, Réunion.
• In July 1975, the 4477th Tactical Evaluation Flight was formed at Nellis AFB as tactical evaluation organization.

Facts about Kobuk Airport (OBU):

• Kobuk Airport covers an area of 167 acres at an elevation of 142 feet above mean sea level.
• The furthest airport from Kobuk Airport (OBU) is George Airport (GRJ), which is located 10,163 miles (16,356 kilometers) away in George, South Africa.
• Because of Kobuk Airport's relatively low elevation of 142 feet, planes can take off or land at Kobuk 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.
• In addition to being known as "Kobuk Airport", another name for OBU is "PAOB".
• The closest airport to Kobuk Airport (OBU) is Dahl Creek Airport (DCK), which is located only 2 miles (3 kilometers) N of OBU.
• Kobuk Airport (OBU) currently has only 1 runway.