Aug 13, 2019 04:58 UTC
Lockheed Martin announced
that the AEHF-5 protected communication satellite is now in transfer orbit. The launch on August 8 was successful and the AEHF-5
is now responding to the US Air Force's 4th Space Operations Squadron’s commands. According to Lockheed, the squadron began "flying" the satellite shortly after it separated from its United Launch Alliance Atlas V 551 rocket approximately 5 hours and 40 minutes after the rocket's successful 6:13 am ET liftoff. The Advanced Extremely High Frequency 5 or AEHF-5 satellite is the fifth addition to the Air Force’s Advanced Extremely High Frequency constellation. The satellites are built by Lockheed Martin and are used to relay secure communications for the Armed Forces of the United States, the United Kingdom, Canada, and the Netherlands. The first AEHF satellite was launched in 2006 and the most recent, the AEHF-4 in October 2018. The sixth and final AEHF satellite is expected to launch later this year.
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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Jul 10, 2019 04:56 UTC
The MQ-8C Fire Scout Unmanned Helicopter is cleared for fleet operations and training. The Navy declared
initial operational capability of the Fire Scout on June 28. According to the Naval Air Systems Command, the MQ-8 Fire Scout
is a sea-based, vertical lift unmanned system that is designed to provide reconnaissance, situational awareness, and precision targeting support for ground, air and sea forces. „This milestone is a culmination of several years of hard work and dedication from our joint government and industry team,” said Capt. Eric Soderberg, Fire Scout program manager. The MQ-8C will be equipped with an upgraded radar that allows for a larger field of view and a range of digital modes including weather detection, air-to-air targeting and a ground moving target indicator.
MQ-8B Fire Scout
A helicopter UAV is very handy for naval ships, and for armies who can’t always depend on runways. The USA’s RQ/MQ-8 Fire Scout Unmanned Aerial Vehicle has blazed a trail of firsts in this area, but its history is best described as “colorful.” The program was begun by the US Navy, canceled, adopted by the US Army, revived by the Navy, then canceled by the Army. Leaving it back in the hands of the US Navy. Though the Army is thinking about joining again, and the base platform is changing.
The question is, can the MQ-8 leverage its size, first-mover contract opportunity, and “good enough” performance into a secure future with the US Navy – and beyond? DID describes these new VTUAV platforms, clarifies the program’s structure and colorful history, lists all related contracts and events, and offers related research materials.
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Aug 04, 2017 04:57 UTC
Russia has announced that it is developing its own rail gun technology
as the first pictures of US efforts made their way to press
. The "battlefield meteorite" is capable of firing a projectile at an initial speed of 4,500 miles per hour, piercing seven steel plates, and leaving a 5-inch hole -- able to "blow holes in enemy ships, destroy tanks and level terrorist camps." For Russia, the new weapon will not replace traditional weapons "even in the mid-term perspective," as much time needs to pass from the first tests to the mass production, especially considering the high price of the production, according to Russian senator Franz Klintsevich.
Back in March 2006, BAE Systems received a contract for “design and production of the 32 MJ Laboratory Launcher for the U.S. Navy.” Some hint of what they are talking about can be gleaned from the name. BAE isn’t the only firm that’s working on this program, which the US Navy sees as its gateway to a game-changing technology. The project is an electro-magnetic rail gun, which accelerates a projectile to incredibly high speeds without using explosives.
The attraction of such systems is no mystery – they promise to fire their ammunition 10 or more times farther than conventional naval gun shells, while sharply reducing both the required size of each shell, and the amount of dangerous explosive material carried on board ship. Progress is being made, but there are still major technical challenges to overcome before a working rail gun becomes a serious naval option. This DID FOCUS article looks at the key technical challenges, the programs, and the history of key contracts and events.
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Sep 12, 2012 16:35 UTC
The Pennsylvania State University Applied Research Laboratory serves as a U.S. Navy UARC (University Affiliated Research Center) in Defense science and technologies, with a focus in naval missions and related areas. In September 2012, they were awarded a 5-year, maximum $415 million cost-plus-fixed-fee indefinite-delivery/ indefinite-quantity task order contract. in return, they’ll provide up to 2,060,076 staff hours for research, development, engineering, and test and evaluation. An option for an additional 5 years could bring the maximum value to $853.3 million, and the cumulative staff hours to 3,935,759.
PSU’s ARL will work on guidance, navigation and control of undersea systems; advanced thermal propulsion concepts and systems for undersea vehicles; advanced propulsors and other fluid machinery for marine systems; materials and manufacturing technology; atmosphere and defense communications systems; and other related technologies. Individual task orders will be issued as needs arise. Work is expected to be completed by September 2017, or September 2022 with all options exercised. This contract was not competitively procured by US Naval Sea Systems Command in Washington, DC (N00024-12-D-6404).
Jul 01, 2012 14:18 UTC
US ORNL laser test
Readers who follow the tech press may be familiar with the concept of quantum computing. Computers use binary bits: on/off, yes/no, represented by 0 or 1. A quantum bit, or qubit, can be 1, or 0… or both. Whereas 111 = 7 in binary, and each number is a single choice among all the possibilities in the number of binary digits, 3 qubits can hold all 8 possibilities (0-7), which means you can do calculations on all of them at once. The more qubits used, the more computation, so 32 qubits theoretically gets you 2 to the 32nd power computations (about 4.3 billion) at once – much more power than conventional computing, and it keeps on rising exponentially.
It’s worth noting that quantum computing has limits, and areas where it will not be suitable for computing tasks. They are not fully understood yet, but have been shown to exist at the theoretical level. So far, all we can say is that certain kinds of problems will be solved much, much more quickly. The uses of such a system for searching large domains of information, cracking codes, creating codes, or running simulations that include the quantum level (as a number of modern physical and medical science applications do) are clear. As an additional benefit, quantum cryptography methods benefit from quantum principles. Eavesdropping is not only incredibly difficult, it will create noticeable interference.
Various American agencies continue to be interested in the field, which has also begun finding commercial applications.
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Aug 31, 2011 11:10 UTC
Aug 30/11: The President and Fellows of Harvard College in Cambridge, MA receive a $6.7 million cost reimbursement contract for research to develop technologies and approaches to predict natural viral evolution. We’d all benefit from that, but we’re still likely to be surprised by what actually happens.
Work will be performed in Cambridge, MA (39%); Laurel, MD (37%); Baltimore, MD (9%); Ann Arbor, MI (9%); and Pittsburgh, PA (5%). Work is expected to be completed by Aug 31/12. The US Defense Advanced Research Projects Agency (DARPA) manages the contract (HR0011-11-C-0093).