Nonstop flight route between Cape Romanzof, Alaska, United States and Portsmouth, New Hampshire, United States:

About this route:

A direct, nonstop flight between Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    (CZF), Cape Romanzof, Alaska, United States and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 3,813 miles (or 6,136 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 Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    and Portsmouth International Airport at Pease, 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 Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    and Portsmouth International Airport at Pease. 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 Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    (CZF):

• Contracts were awarded during the spring of 1950, and work was started shortly afterwards on construction.
• The furthest airport from Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    (CZF) is Cape Town International Airport (CPT), which is located 10,504 miles (16,905 kilometers) away in Cape Town, South Africa.
• Cape Romanzof provided information 24/7 to the air defense Direction Center at King Salmon AFS where it was analyzed to determine range, direction altitude speed and whether or not aircraft were friendly or hostile.
• The inaccessibility made the personnel at the site responsible for maintenance if anything went wrong.
• Cape Romanzof AFS was a continental defence radar station constructed to provide the United States Air Force early warning of an attack by the Soviet Union on Alaska.
• In addition to being known as "Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site   ", another name for CZF is "Cape Romanzof AFS Radars F-06".
• The closest airport to Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    (CZF) is Scammon Bay Airport (SCM), which is located only 13 miles (21 kilometers) ENE of CZF.
• Over the years, the equipment at the station was upgraded or modified to improve the efficiency and accuracy of the information gathered by the radars.

Facts about Portsmouth International Airport at Pease (PSM):

• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
• Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
• The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
• It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.
• The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
• Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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.