Nonstop flight route between Obock, Djibouti and Rapid City, South Dakota, United States:

About this route:

A direct, nonstop flight between Obock Airport (OBC), Obock, Djibouti and Ellsworth Air Force Base (RCA), Rapid City, South Dakota, United States would travel a Great Circle distance of 8,022 miles (or 12,910 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 Obock Airport and Ellsworth Air Force Base, 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 Obock Airport and Ellsworth Air Force Base. 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 Obock Airport (OBC):

• The closest airport to Obock Airport (OBC) is Moucha Airport (MHI), which is located only 18 miles (29 kilometers) SSW of OBC.
• Because of Obock Airport's relatively low elevation of 69 feet, planes can take off or land at Obock 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.
• The furthest airport from Obock Airport (OBC) is Atuona Airport (AUQ), which is nearly antipodal to Obock Airport (meaning Obock Airport is almost on the exact opposite side of the Earth from Atuona Airport), and is located 12,219 miles (19,665 kilometers) away in Atuona, Marquesas Islands, French Polynesia.

Facts about Ellsworth Air Force Base (RCA):

• The furthest airport from Ellsworth Air Force Base (RCA) is Sir Gaëtan Duval Airport (RRG), which is located 10,579 miles (17,026 kilometers) away in Rodrigues Island, Mauritius.
• The base experienced one of its worst peacetime tragedies in March 1953 when an RB-36 and its entire crew of 23 crashed in Newfoundland while returning from a routine exercise in Europe.
• The closest airport to Ellsworth Air Force Base (RCA) is Rapid City Regional Airport (RAP), which is located only 7 miles (11 kilometers) S of RCA.
• To provide air defense of the base, the United States Army established the Ellsworth AFB Defense Area in 1957 and constructed Nike-Ajax Surface-to-air missile sites for air defense.
• In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
• The Titan I's life span was short in western South Dakota.
• Air Defense Command deactivated the Ellsworth radar site on 15 August 1962 and the 740th was discontinued.
• In March 1944, heavy bomber operational training ended and the 225th Army Air Force Base Unit began training of replacement personnel for deployed heavy bombardment units in the overseas combat theaters.