Oct 12, 2015 00:19 UTC
The Pentagon has denied United Launch Alliance a waiver that would have allowed the company to continue using Russian RD-180 rockets. SpaceX was unhappy
that the company's competitor for defense and intelligence satellite launch services requested the waiver, with ULA previously threatening to withdraw from future competition with SpaceX if the waiver was denied. SpaceX was cleared for national security launches in May
, with Congress passing the 2015 defense authorization law in December 2014
to curtail the use of the RD-180 by ULA, resulting in protests from some within the Pentagon earlier this year
Boeing Delta IV Heavy
The EELV program was designed to reduce the cost of government space launches through greater contractor competition, and modifiable rocket families whose system requirements emphasized simplicity, commonality, standardization, new applications of existing technology, streamlined manufacturing capabilities, and more efficient launch-site processing. Result: the Delta IV (Boeing) and Atlas V (Lockheed Martin) heavy rockets.
Paradoxically, that very program may have forced the October 2006 merger of Boeing & Lockheed Martin’s rocket divisions. Crosslink Magazine’s Winter 2004 article “EELV: The Next Stage of Space Launch” offers an excellent briefing that covers EELV’s program innovations and results, while a detailed National Taxpayer’s Union letter to Congress takes a much less positive view. This DID Spotlight article looks at the Delta IV and Atlas V rockets, emerging challengers like SpaceX and the new competition framework, and the US government contracts placed since the merger that formed the United Launch Alliance.
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May 22, 2015 00:01 UTC
Lockheed Martin has been awarded a $735 million
support contract for the Air Force's Advanced Extremely High Frequency Satellites
and Defense Satellite Communications System III
. The company was awarded a similar contract for the latter two in 2009
The USA’s new Advanced Extremely High Frequency (AEHF) satellites will support twice as many tactical networks as the current Milstar II satellites, while providing 10-12 times the bandwidth capacity and 6 times the data rate transfer speed. With the cancellation of the higher-capacity TSAT program, AEHF will form the secure, hardened backbone of the Pentagon’s future Military Satellite Communications (MILSATCOM) architecture, with a mission set that includes nuclear command and control. Its companion Family of Advanced Beyond-line-of-sight Terminals (FAB-T) program will give the US military more modern, higher-bandwidth receiving capabilities, and add more flexibility on the front lines. The program has international components, and partners currently include Britain, Canada, and the Netherlands.
This article offers a look at the AEHF system’s rationale and capabilities, while offering insight into some of the program’s problems, and an updated timeline covering over $5 billion worth of contracts since the program’s inception.
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May 14, 2015 02:01 UTC
The Air Force has launched a tender
for the launch of a next-generation Global Positioning System satellite
, releasing a RFP for the launch vehicle production, mission integration and launch operations. The latest Lockheed Martin GPS-III satellite was recently announced
as being ready for system testing.
GPS IIIA concept
GPS-III satellites, in conjunction with their companion OCX ground control, system are the Global Positioning System (GPS) future. They offer big advantages over existing GPS-II satellites and GCS, but most of all, they have to work. Disruption or decay of the critical capabilities provided by the USA’s Navstar satellites would cripple both the US military, and many aspects of the global economy.
The time-based GPS service is the most-used application of Einstein’s Theories of Relativity. GPS has become part of civilian life in ways that go go far beyond those handy driving maps, including crop planting, timing services for stock trades, and a key role in credit card processing. At the same time, military class (M-code) GPS guidance can now be found in everything from cruise missiles and various precision-guided bombs, to battlefield rockets and even artillery shells. Combat search and rescue radios rely on this line of communication, and so does a broadening array of individual soldier equipment.
This DII FOCUS article looks at the existing constellation, GPS-III improvements, the program’s structure, its progress through contracts and key milestones, and extensive PTN (Positioning, Timing & Navigation)/ GNSS (Global Navigation Satellite System) research links.
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