On Feb. 3, the Air Force plans to launch the 12th, and last, satellite in the Block IIF series of modernized GPS spacecraft.

GPS IIF-5 incrementally upgrades the constellation with improved accuracy, enhanced internal atomic clocks, better anti-jam resistance, a civil signal for commercial aviation, and a longer design life ...

Aerojet, a GenCorp (NYSE:GY) company, announced today that its engines contributed to the successful launch of the first Global Positioning System (GPS) Block IIF satellite. Aerojet will continue t… ...

GPS IIF SV-1 is part of Block IIF, the fourth generation of GPS satellites. At 3,600 pounds and with a height of 8 feet, SV-1 is the only one of its kind up there right now, but its 11 siblings ...

The last GPS Block IIF satellite built by the Boeing Co. was sent into orbit for the U.S. Air Force today, filling out a set of a dozen.

One of the older Block IIA satellites launched in 1990 will move out of orbit to make space for the newest IIF-12. But that old satellite is still functioning and serving GPS in a back-up capacity.

This $131 million satellite was the final addition to the Air Force’s most recent 12-satellite GPS series, known as the Block IIF satellites.

The GPS Block IIF satellites are interim class of satellites intended to provide service until the next generation of GPS Block IIIA are finalized, built, and make it into orbit.

Besides sustaining the GPS constellation, IIF features increased capability and improved mission performance and longevity. The launch was the 10th flight of a Delta IV rocket from Cape Canaveral AFS.

The satellite was built by Boeing, and is operated by the U.S. Air Force. It is the 12th and final block IIF global positioning system satellite to launch.

The GPS satellite, launched from Cape Canaveral Air Force Station, Florida, is the 10th Block IIF satellite built by Boeing and launched by the Air Force.

The Air Force successfully launched the third Global Positioning System IIF satellite on Oct. 4 from Cape Canaveral, Fla., aboard a United Launch Alliance Delta IV-Medium rocket, the service said.