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):

• 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 closest airport to Obock Airport (OBC) is Moucha Airport (MHI), which is located only 18 miles (29 kilometers) SSW of OBC.
• 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 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.
• On 15 July 1945, the 225th AAFBU was inactivated and Rapid City AAB was placed on standby status as the Army Air Forces began to demobilize.
• The 740th AC&W Squadron began operations in 1955 with AN/MPS-7 search radar, and initially the station functioned as a Ground-Control Intercept and warning station.
• The 44th Missile Wing, however, had ably accomplished its deterrence mission.
• 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.
• Ellsworth AFB was established in 1941 as Rapid City Army Air Base.
• In addition to being known as "Ellsworth Air Force Base", another name for RCA is "Ellsworth AFB".
• After the Army closed their facilities, the military housing at the Nike Integrated Fire Control sites was transferred to control of Ellsworth, and was used as Air Force military family housing until about 1990.
• Rapid City AAB was reactivated on 11 October 1945 and was assigned to Continental Air Force.