Nonstop flight route between Tacoma, Washington, United States and Rockland, Maine, United States:

About this route:

A direct, nonstop flight between Gray Army Airfield (GRF), Tacoma, Washington, United States and Knox County Regional Airport (RKD), Rockland, Maine, United States would travel a Great Circle distance of 2,544 miles (or 4,095 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 Gray Army Airfield and Knox County Regional 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 Gray Army Airfield and Knox County Regional 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 Gray Army Airfield (GRF):

• Used to support Fort Lewis, Army helicopters assisted with medical evacuations at Mount Rainier National Park on numerous occasions in the 1970s.
• The closest airport to Gray Army Airfield (GRF) is McChord Field/McChord AFB (TCM), which is located only 6 miles (10 kilometers) NE of GRF.
• During the Vietnam War, GAAF not only trained helicopter units, but fixed-wing aircraft units as well.
• Gray Army Airfield (GRF) currently has only 1 runway.
• The Fort Lewis airfield housed observation planes.
• The Air Transport Command.
• Because of Gray Army Airfield's relatively low elevation of 300 feet, planes can take off or land at Gray Army Airfield 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 "Gray Army Airfield", another name for GRF is "(Joint Base Lewis-McChord)".
• August 1984 saw GAAF become one of few test centers for the UH-60 Blackhawk helicopters.
• The furthest airport from Gray Army Airfield (GRF) is Tôlanaro Airport (FTU), which is located 10,809 miles (17,395 kilometers) away in Tôlanaro, Madagascar.

Facts about Knox County Regional Airport (RKD):

• Knox County Regional Airport (RKD) has 2 runways.
• Because of Knox County Regional Airport's relatively low elevation of 56 feet, planes can take off or land at Knox County Regional 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.
• As per Federal Aviation Administration records, the airport had 13,866 passenger boardings in calendar year 2008, 14,461 enplanements in 2009, and 17,657 in 2010.
• The closest airport to Knox County Regional Airport (RKD) is Wiscasset Airport (ISS), which is located 31 miles (50 kilometers) WSW of RKD.
• Knox County Regional Airport covers an area of 538 acres at an elevation of 56 feet above mean sea level.
• The furthest airport from Knox County Regional Airport (RKD) is Albany Airport (ALH), which is located 11,708 miles (18,842 kilometers) away in Albany, Western Australia, Australia.