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

About this route:

A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    (CZF), Cape Romanzof, Alaska, 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 Portsmouth International Airport at Pease and Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site   , 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 Portsmouth International Airport at Pease and Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site   . 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 Portsmouth International Airport at Pease (PSM):

• The airport is located within the Pease International Tradeport, a result of the ongoing redevelopment of the former Pease Air Force Base which was closed under Base Realignment and Closure Commission action in the late 1980s and early 1990s.
• Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
• Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
• 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.
• 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.

Facts about Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site    (CZF):

• 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".
• Communications were initially provided by a high frequency radio system which proved unreliable because of atmospheric disturbances.
• 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.
• Today the site is controlled by the Pacific Air Forces 611th Air Support Group, based at Elmendorf AFB.
• The station was opened in April 1953 as a general radar surveillance station, operated by the 795th Aircraft Control and Warning Squadron.
• 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.
• 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.