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

About this route:

A direct, nonstop flight between Tonopah Test Range Airport (XSD), Tonopah, Nevada, United States and Hyder Seaplane Base (WHD), Hyder, Alaska, United States would travel a Great Circle distance of 1,393 miles (or 2,242 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 relatively short distance between Tonopah Test Range Airport and Hyder Seaplane Base, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Tonopah Test Range Airport (XSD):

• 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.
• The closest airport to Tonopah Test Range Airport (XSD) is Tonopah Airport (TPH), which is located 25 miles (40 kilometers) NW of XSD.
• In 1980 the 4477th TEF was re-designated as the 4477th Test and Evaluation Squadron and the operation was renamed again to Constant Peg.
• In May 1973, when Project HAVE IDEA was initiated for joint technical and tactical evaluation of Soviet aircraft types, the tactical evaluation flights of foreign aircraft were undertaken by Detachment 1, 57th Fighter Weapons Wing.
• Beginning in October 1979 Tonopah Test Range Airport was reconstructed and expanded.
• The Tonopah Range Airport first opened in 1957, supporting operations on the Test Range itself, which was used for United States Atomic Energy Commission ) funded weapon programs.
• Near the end of the Cold War the program was abandoned and the squadron was disbanded.

Facts about Hyder Seaplane Base (WHD):

• In addition to being known as "Hyder Seaplane Base", another name for WHD is "4Z7".
• There are two floats for seaplanes, one along the shoreline and another within a protected cove with a concrete launch ramp.
• The closest airport to Hyder Seaplane Base (WHD) is Stewart Aerodrome (ZST), which is located only 2 miles (4 kilometers) NNE of WHD.
• The furthest airport from Hyder Seaplane Base (WHD) is Port Alfred Airport (AFD), which is located 10,540 miles (16,962 kilometers) away in Port Alfred, South Africa.
• Hyder Seaplane Base has one seaplane landing area designated N/S with a water surface measuring 10,000 by 1,000 feet.
• Hyder Seaplane Base (WHD) currently has only 1 runway.
• Because of Hyder Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Hyder 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.