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not so dravidian

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US tested hypersonic missile in mid-March but kept it quiet to avoid escalating tensions with Russia


The Hypersonic Air-breathing Weapon Concept (HAWC) was launched from a B-52 bomber off the west coast, the official said, in the first successful test of the Lockheed Martin version of the system. A booster engine accelerated the missile to high speed, at which point the air-breathing scramjet engine ignited and propelled the missile at hypersonic speeds of Mach 5 and above.

The official offered scant details of the missile test, only noting the missile flew above 65,000 feet and for more than 300 miles. But even at the lower end of hypersonic range -- about 3,800 miles per hour -- a flight of 300 miles is less than 5 minutes.


The US test is the second successful test of a HAWC missile, and it is the first of the Lockheed Martin version of the weapon. Last September, the Air Force tested the Raytheon HAWC, powered by a Northrop Grumman scramjet engine.

The test met all primary objectives, according to a press release from the Defense Advanced Research Projects Agency (DARPA), including the missile's integration and release, safe separation from the launch aircraft, booster firing, and cruise. Then too officials offered few details about the flight, with no mention of how fast the missile flew or what distance it traveled. The release only stated that the missile traveled at speeds greater than Mach 5.
 

skunk works

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Lockheed Martin successfully tested a laser based missile defense system against a cruise missile in Feb 22.
Video released today, very interesting. Cruise missile defence, while slower speed than ballistic, usually means ability to hit Manouvering missiles, and can also be used against aircraft and drones.
 

Wisemarko

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The transition to M-code begins
BAE Systems’ M-Code GPS Receiver Enables Precision Strike Capabilities in Contested Environments - GPS Jamming

Matteo LuccioMay 16, 2022
May 16, 2022 - By Matteo Luccio
Source: GPSWorld

BAE Systems has produced more than one and a half million military GPS receivers. The company is transitioning receiver designs to use the modernized military code (M-code) signal for added resiliency in RF-challenged environments. We asked Luke Bishop, director and product line engineering lead for the company’s Navigation & Sensor Systems, a few questions.

BAE Systems’ MPE-M provide the benefit of M-Code operation in a challenged RF environment. Image: BAE Systems
BAE Systems’ MPE-M provides the benefit of M-Code operation in a challenged RF environment. Image: BAE Systems

Why transition to M-code?
There are three key reasons for users to transition to M-code as supported by Military GPS User Equipment (MGUE). First, MGUE provide U.S. forces and our allies with enhanced PNT capabilities while improving resistance to threats, such as accidental and intentional jamming. Compared to the current P(Y)-code signal specs, M-code signals are stronger. Second, MGUE provides improved resistance to spoofing. Third, MGUE is field programmable, enabling updates to accommodate future enhancements to the GPS enterprise, such as regional military protection (RMP).

Which user equipment is transitioning to M-code?
Successful MGUE Inc 1 prototype development is being leveraged into a full portfolio of weapons, ground and aviation/maritime M-code GPS receivers. Our first production M-code receiver, MPE-M, achieved production deliveries in CY2021, with more than 1,000 delivered. Additional M-code GPS form factors are under development.

We are also underway with the Foreign Military Sales (FMS) M-code program with MPE-M.

How is the transition to M-code proceeding?
As indicated by the January 2021 GAO report (GAO-21-145), M-code-capable user equipment is in the initial stages of Department of Defense (DOD) fielding for select weapon systems. Also noted by the GAO report, the DOD has conducted bulk purchases of the Increment 1 ASICs [application-specific integrated circuits] to ensure that “sufficient supplies of [them] are on hand for future integration into M-code card …based on estimated need through 2028.” We are at the beginning of M-code (MGUE). Time and the market will tell what ultimately happens.

Which of your receivers operate with an anti-jam (AJ) antenna?
BAE Systems’ receivers support both stand-alone AJ and integrated AJ. Receivers with integrated AJ include the NavFire-M, NavStorm-M and SABR-M receivers supporting high-dynamic weapons applications. Receivers directly supporting external AJ via a digital beamforming interface include the MPE-M and AMR. Our external AJ DIGAR offering provides exceptional performance for many stakeholders.

Also check out the new MAPS II System
 
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