US military, technology, arms, tactics

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kit
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Re: US military, technology, arms, tactics

Postby kit » 16 Apr 2019 05:38

https://www.flightglobal.com/news/articles/greece-eyes-f-35s-as-f-16-replacement-457481/

Greece operates the s300..so they are not worried about that ??

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Re: US military, technology, arms, tactics

Postby NRao » 16 Apr 2019 06:00

kit wrote:https://www.flightglobal.com/news/articles/greece-eyes-f-35s-as-f-16-replacement-457481/

Greece operates the s300..so they are not worried about that ??


Greece has had the S-300 since the 90s. And, there are other topics, between the two, that are of interest too. Greece and Russia have been close for centuries. See if the following helps:

Why didn't NATO object to the Greek acquisition of the Russian S-300 missile system?

However, my feel is that the S-300 has been compromised. Here is another article that is very interesting.

The true threat of S-300s is not that they’re powerful, but that they’re Russian

In addition to supplying Syria with the S-300, Russian defense minister Sergei Shoigu also said Monday that Russia would “jam satellite navigation, on-board radars and communication systems of combat aircraft attacking targets in Syria.”


So, just having the S-300 is not sufficient?

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Re: US military, technology, arms, tactics

Postby brar_w » 16 Apr 2019 06:13

kit wrote:https://www.flightglobal.com/news/articles/greece-eyes-f-35s-as-f-16-replacement-457481/

Greece operates the s300..so they are not worried about that ??



There is no FMS notification for Greece. Depending upon the time frame being considered (likely late 2020's/ early 2030s) it may or may not be raised but there is certainly a possibility that someone in the process raises that as a point of concern. Also the nature of the acquisition and future plans are different. Greece essentially got passed the S-300 as a compromise to bring to rest an escalation between Turkey and Cyprus. They aren't acquiring strategic air-defense systems from Russia with the aim of integrating them on a common network and IADS system that will also have the F-35 integrated into it.

By the time Greece ends up fielding the F-35A their S-300 acquisition would have been more than 2-3 decades old so very much a legacy system. Big difference from the Turkey situation. Greece is not a partner on the JSF program. A formal request for F-35A's for Greece would be evaluated just as any other FMS case is evaluated. Turkey being a program partner does not need to go through the FMS process and it is certainly prudent from the US perspective to re-evaluate that relationship and see if Turkey really needs to be a part of both the industrial program (with its industry set to make Billions from the JSF program over the next several decades just as it has with the F-16 program) and as an operator.
Last edited by brar_w on 16 Apr 2019 07:23, edited 4 times in total.

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Re: US military, technology, arms, tactics

Postby brar_w » 16 Apr 2019 06:18

U.S. Air Force’s F-35A Lightning II arrives for first Middle East deployment

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Three F-35A Lightning IIs assigned to the 4th Expeditionary Fighter Squadron taxi after landing at Al Dhafra Air Base, United Arab Emirates, April 15, 2019. The F-35A Lightning II is deployed to the U.S. Air Forces Central Command area of responsibility for the first time in U.S. Air Force history. (U.S. Air Force photo by Staff Sgt. Chris Thornbury)


David Cenciotti provides additional details. Seems they are deploying in groups of 4 with about 12 expected to deploy to the UAE -

U.S. Air Force F-35A 5th Generation Aircraft Have Arrived in UAE for Type’s First Deployment To The Middle East.


Four Lightning II belonging to the active duty 388th and reserve 419th Fighter Wings at Hill Air Force Base, Utah, have just arrived at Al Dhafra Air Base, UAE, for the F-35A’s first deployment to the Middle East.

Flying as “Trend 41” and supported by three tankers (“Gold 91-93”), the F-35s made a stopover in Moron Air Base, Spain. Additional F-35s are on their way along the same route. Four F-35A landed at Moron on Apr. 15: AF 15-5180, -5181, -5163, -5176). Based on reports, at least 12 F-35A Lightning II should deploy to the UAE.


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AF 15-5194 and 15-5192 departing Moron AB, Spain on Apr. 15, 2019. (Image credit: David M. Parody)
Last edited by brar_w on 16 Apr 2019 18:10, edited 3 times in total.

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Re: US military, technology, arms, tactics

Postby brar_w » 16 Apr 2019 09:23

Bell V-280 Valor tiltrotor reaches 300kt


Bell pushed its V-280 Valor tiltrotor to 300kt (556km/h) in a March test flight, surpassing its previous top speed for which it is named, 280kt.

Believing that it has sufficiently proven the rotorcraft’s high-speed performance, the aircraft manufacturer will spend the coming months testing its low-speed manoeuvrability.

“We are flipping to more operational type manoeuvres and are looking at more low-speed agility stuff,” says Ryan Ehinger, programme manager for the V-280. “We want to show level one handling qualities. And, we’ve already demonstrated that in yaw and pitch. And, we are close to that on roll. We just need to get a few more test days with low winds to demonstrate that.”

Lockheed Martin's Pilotage Distributed Aperture Sensor (PDAS) system also flew for the first time aboard the V-280 in March.

Bell recently completed some initial tests on the tiltrotor’s ability to facilitate fast-roping deployment of troops. No personnel slid down a rope that was dangled from the side door of the aircraft, though Bell says the fact that the line remained stable during a low hover, and did not get blown around in the downwash, reassured the company that the descent is possible. Bell believes the rotorcraft’s ability to disembark troops is one of its advantages.

“When you’ve got two giant side doors, 1.8m (6ft) wide …. [on] both sides, you can see everybody is within two steps of getting out of the aircraft and getting to a fast rope, and getting out on the ground to execute the mission,” says Ehinger.

Bell has flown the V-280 for more than 100 flight hours and has put 200 operational hours on the aircraft in total, including ground and taxing tests.



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Re: US military, technology, arms, tactics

Postby kit » 16 Apr 2019 14:42

https://www3.nhk.or.jp/nhkworld/en/news/20190416_01/


One week after the accident, the SDF and US forces are still conducting an air and sea search.

The pilot remains missing, and most parts of the stealth fighter have yet to be found.

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Re: US military, technology, arms, tactics

Postby kit » 16 Apr 2019 14:44

https://www.janes.com/article/87897/pentagon-confirms-deployment-of-new-passive-sensor


The Pentagon has confirmed the deployment of prototype passive sensor systems for long-range surveillance against fixed and rotary-wing aircraft, unmanned aircraft systems (UASs), and cruise missile (CM) threats.

looks like a widespread deployment across multiple theatres. probably for electronic "sniffing" out new threats

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Re: US military, technology, arms, tactics

Postby brar_w » 16 Apr 2019 18:01

kit wrote:[url]looks like a widespread deployment across multiple theatres. probably for electronic "sniffing" out new threats


That can be one potential use. However, Electronic Warfare gear is usually deployed separately into a theater irrespective of the AD footprint committed to the region. The ALPS sensor is very much part of the Air Defense units there and will contribute to defeating of the threats mentioned in the article. As the article states this appears to be a passive system that comes with a weapons threat library and helps AD units better ID cruise missiles and UAS at longer ranges.

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Re: US military, technology, arms, tactics

Postby brar_w » 17 Apr 2019 17:09

Lockheed Tests Game-Changing F-35-Like X-Ray Vision System On Bell's V-280 Valor


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Lockheed Martin has flown its new Pilotage Distributed Aperture Sensor, or PDAS, on Bell’s V-280 Valor tilt-rotor aircraft for the first time. This system uses multiple cameras to offer pilots a 360-degree view around their aircraft, similar to the Distributed Aperture System on the F-35 Joint Strike Fighter. This is a game-changing capability that could improve their ability to avoid threats, navigate more safely, even at night and in other poor visibility conditions, and simply have better situational awareness overall during flight. The modular technology could have applications far beyond tilt-rotors and other rotorcraft, including fixed-wing aircraft, ships, and ground vehicles, and might find uses in the commercial sector, too.

On Apr. 15, 2019, the Maryland headquartered defense contractor revealed that it had conducted the PDAS tests on the prototype V-280 in a series of flights from its facilities in Fort Worth, Texas the month before. Lockheed Martin says it signed a deal with Bell in 2013 to test the system on their tilt-rotor and began working on it actively in 2014. The company has previously tested it on board a UH-60 Black Hawk helicopter, as well.

“Conducting PDAS flight tests on the V-280 is an exciting first step toward delivering a level of situational awareness unavailable on today's Army rotorcraft,” Rita Flaherty, the Strategy and Business Development Vice President at Lockheed Martin’s Missiles and Fire Control division, said in a press release. “With its embedded, multi-functional sensors, PDAS is the ideal foundation for an integrated survivability suite that will enable Army aircrews to own any environment and universally detect and defeat incoming threats.”

The PDAS configuration on the V-280 consists of six infrared cameras positioned around the aircraft. A central processing system “stitches together” these feeds and then pump them into helmet-mounted displays for the pilot and co-pilot, as well as fixed screens in the cockpit. The result is that pilots can “see” in any direction, including what would otherwise be blind spots, such as through the floor or straight to the rear of the aircraft.

This is similar in general principle to how the Northrop Grumman AN/AAQ-37 Distributed Aperture System (DAS) works on the F-35 Joint Strike Fighter. The DAS similarly gives pilots in these stealthy fighter jets a panoptic view in any direction.

Lockheed Martin’s PDAS presents a simpler, less deeply integrated option that is more applicable to helicopters and tilt-rotors, such as the V-280. The company started development of the system as something that could eventually work its way into the Army’s Joint Multi-Role (JMR) technology demonstration, which is supposed to lead into parts of the larger Future Vertical Lift (FVL) program.



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Re: US military, technology, arms, tactics

Postby brar_w » 18 Apr 2019 16:24

brar_w wrote:From the requirements document -


There are supplemental USMC requirements are probably even more favorable to the V-280 given that the Marines are looking at a cruise speed closer to 300 knots..



Just as I suspected. The SB>1 is going to need mods to meet the USMC cruise speed requirements which is in excess of 270 knots as a threshold and closer to 305 knots as an objective. The V-280 TD has already flown at 300 knots.

SB-1 Needs Modification For Speed Goal

NASHVILLE, Tennessee—The Sikorsky/Boeing team must modify the SB-1 Defiant to achieve the Marine Corps’ goal of 270 kt. for the Future Long-Range Assault Aircraft (FLRAA) that will replace the Bell UH-1Y Venom fleet, industry officials say.

The government must trade how large of an aircraft it needs to balance power versus function, Kenneth Eland, future vertical lift program manager at Boeing, told reporters April 15 at the Quad-A Army aviation conference here. For example, for the SB-1 to achieve 270 kt., it will need a large engine and transmission.

The Marines could choose to shrink cabin space and carry fewer people to accommodate a larger engine, Randy Rotte, cargo helicopter and future vertical lift business development director at Boeing, said during the same April 15 briefing.

“It goes back to informing those good trades that the customer, the [Defense Department], will have to make to achieve what’s most important to them,” Rotte said.

Separately, the Defiant will fly its third flight next week when it will try to perform frequency sweeps and check the structural modes of the aircraft. The active vibration control will also be powered for the first time during the same flight, Bill Fell, experimental test pilot at Sikorsky, said during the same April 15 briefing.

The Defiant completed its first flight March 21 at West Palm Beach, Florida. The high-speed helicopter is built for the Army’s joint multirole technology demonstration, which is the precursor for the FLRAA to replace the UH-60. The first flight was delayed because of production challenges and a second delay occurred because of problems with the powertrain system testbed.

The Army, Marines and U.S. Special Operations Command are on track to complete an analysis of alternatives for the FLRAA later this year.


Meanwhile, having pretty much finished what they initially set out to achieve with the V-280 TD over its 100+ hours of test flights, Bell now wants to demo additional capability before they wrap up the program and submit their bid -

V-280 Valor May Fly Autonomously This Year

Bell anticipates its V-280 Valor will fly autonomously by the end of the calendar year and is in negotiations with the U.S. Army for more funding to continue envelope expansion, trades and sensitivity analysis, a company executive says.

The Army would like for Bell to conduct more operational maneuvers, such as going to an alternate landing zone at a high rate of speed, Keith Flail, vice president of advanced tiltrotor systems at Bell, told Aerospace DAILY here April 16 at the Quad-A Army aviation conference.
The Army issued a request for proposals to Bell for the potential work, and Flail said the conversation is ongoing.

Separately, Flail’s team is preparing for the V-280’s first autonomous flight. “We’ll have a safety pilot onboard but basically take off on its own, fly around, come back and land on its own,” he said.

The V-280 has surpassed 300 kt. of airspeed, 200 operational rotor-turn hours, both unrestrained and restrained, and 100 flight hours of envelope expansion to date, Flail said.
The Valor is one of two aircraft built for the Joint Multi Role program, which is the precursor to the Future Long-Range Assault Aircraft (FLRAA). The Army has released a request for information for the effort and gave vendors one week to respond.

“The team rallied, we put the response together—there was the Army piece, the Marine Corps piece, and the [U.S.] Special Operations Command piece,” Flail said. “Fortunately, over the last year we’ve been talking to all three of them about their needs and their unique requirements to make sure we understand what they’re looking for and how we would incorporate the unique requirements into the aircraft while still maximizing commonality between the different variants.”

Flail is confident his team can “absolutely” meet the Army’s $43 million cost target.
FLRAA is intended to replace the Army’s Sikorsky UH-60 Black Hawk and the Marine Corps’ Bell UH-1Y Venom.

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Re: US military, technology, arms, tactics

Postby brar_w » 19 Apr 2019 19:42


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Re: US military, technology, arms, tactics

Postby brar_w » 20 Apr 2019 08:54

Startup Commercializing Lockheed Nanocomposite

Developed by Lockheed Martin’s Skunk Works, a thermoplastic nanocomposite that rivals aluminum in performance, but at a lower weight, is to be commercialized by a new startup.

Alpine Advanced Materials has been formed by venture development company Catalyze Dallas, which previously created Metro Aerospace to commercialize a drag-reducing technology developed within Lockheed.

The new material, called HX5, has 90% of the strength of 6061 aluminum, but only 50% of its density. The material solves two of the biggest issues of 6061 aluminum, Alpine says: weight and the galvanic corrosion that occurs when aluminum is in contact with carbon-fiber composites.
More than $50 million was spent over eight years developing the material within Lockheed, the startup says, and HX5 has been approved for use on the F-35 Joint Strike Fighter, the S-97 Raider rotorcraft developed by Lockheed-owned Sikorsky, and satellites.

The nano-reinforced thermoplastic material can replace aerospace-grade aluminum without loss of mechanical performance, Alpine says, and is resistant to solvents, fuels and lubricants, high temperatures and radiation in space as well as galvanic corrosion.

The material can be machined like aluminum without chipping, cracking, galling or gumming, and holes can be tapped and treaded as in metal. Parts produced so far include an electronics enclosure for the S-97, missile brackets and bulkheads and the structure for a gunner’s chair.
Alpine has been formed to design and manufacture high-performance components for aerospace and other industries using the new material. Target applications include clips and brackets, electronics enclosures and racks, seats and galleys, and hardware for avionics and inflight entertainment systems.

Catalyze Dallas’ earlier venture, Metro Aerospace, is marketing and producing Microvanes, aerodynamic devices developed within Lockheed to reduce the drag on the upswept aft fuselage of the C-130 airlifter. Metro has sold Microvanes to several C-130 operators and is offering a version for the Boeing C-17.

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Re: US military, technology, arms, tactics

Postby souravB » 20 Apr 2019 10:01

^^ Brar sir, noob pooch. How is this HX5 material different than what DRDO is developing as structural (nano)composites to be used in fuselage structure? or is it just Khan style marketing?

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Re: US military, technology, arms, tactics

Postby brar_w » 20 Apr 2019 18:25

souravB wrote:^^ Brar sir, noob pooch. How is this HX5 material different than what DRDO is developing as structural (nano)composites to be used in fuselage structure? or is it just Khan style marketing?


That would depend upon their respective properties and what application they are approved or being sold for.

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Re: US military, technology, arms, tactics

Postby Lisa » 20 Apr 2019 19:31

NRao wrote:
kit wrote:https://www.flightglobal.com/news/articles/greece-eyes-f-35s-as-f-16-replacement-457481/

Greece operates the s300..so they are not worried about that ??


Greece has had the S-300 since the 90s. And, there are other topics, between the two, that are of interest too. Greece and Russia have been close for centuries. See if the following helps:

Why didn't NATO object to the Greek acquisition of the Russian S-300 missile system?

However, my feel is that the S-300 has been compromised. Here is another article that is very interesting.

The true threat of S-300s is not that they’re powerful, but that they’re Russian

In addition to supplying Syria with the S-300, Russian defense minister Sergei Shoigu also said Monday that Russia would “jam satellite navigation, on-board radars and communication systems of combat aircraft attacking targets in Syria.”


So, just having the S-300 is not sufficient?


One need to read the above with this additional piece,

https://en.wikipedia.org/wiki/Cypriot_S-300_crisis

ie Greek S300's are actually Cypriot.

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Re: US military, technology, arms, tactics

Postby brar_w » 21 Apr 2019 19:38

AARGM-ER is likely to act as a de-risking effort for the Next Gen. A2A missile as far as a new generation of Solid Rocket Motor's are concerned -

Northrop Grumman awarded AARGM-ER EMD contract ; Jane's Missiles & Rockets ; Robin Hughes, London

The US Naval Air Systems Command (NAVAIR) has awarded Northrop Grumman a USD322.5 million contract for the engineering and manufacturing development (EMD) phase of the Advanced Anti-Radiation Guided Missile-Extended Range (AARGM-ER) development programme.
A USD17.2 million preliminary design contract for AARGM-ER was awarded to Northrop Grumman in November 2017. This work was completed in February 2019.

The EMD effort – awarded o 7 March and scheduled for completion by December 2023 – includes the design, integration, and test of a new solid rocket motor for the AARGM-ER for use on the US Navy’s (USN’s) F/A-18E/F Super Hornet, EA-18G Growler, and F-35A conventional take-off and landing (CTOL) and F-35C carrier variant platforms. AARGM-ER could potentially equip the US Air Force (USAF) F-35A, which has the same bay dimensions as the F-35C.

The AARGM-ER development is part of the evolution strategy of the in-service AGM-88E Block 1 AARGM, and it leverages existing subsystems and components from the in-service AARGM, including the sensors, electronics, and warhead.

Northrop Grumman’s AARGM-ER design introduces a new aft actuator control system – designed by Northrop Grumman Missile Systems – with the mid-body wings on the legacy AARGM removed. This not only enables a form fit capability internal to the F-35 but also improves manoeuvrability and reduces drag. The company has introduced side-body strakes that deliver lift during the missile’s flight. To assist the required range increment, the existing mid-body control section componentry is repackaged to deliver additional space for propulsion, while the airframe is tapered up from aft of the seeker section to deliver an approximate 10% increase in diameter, with consequent additional volume for propulsion. A new solid propellant rocket motor for the AARGM-ER will be designed and integrated by Northrop Grumman Missile Systems.

Northrop Grumman is also developing a new warhead solution for the new missile based on its Lethality Enhanced Ordnance (LEO) scalable fragmentation/penetration warhead technology. The LEO solution uses a thinned out shell casing supplemented with an inner fragmentation layer that can be scaled according to the required target set. “LEO is a fairly generic technology: PBXN-110 explosive fill and fragmentation layer; it’s how we array those fragments that determines the desired effects,” Pat Nolan, vice-president and general manager, Missile Products, Northrop Grumman, told Jane’s .

In a related development, the USAF plans to leverage AARGM-ER for its Stand-in Attack Weapon (SiAW) requirement for its F-35A platforms. The SiAW system is intended to provide a strike capability to defeat rapidly relocatable targets that create the anti-access/area denial (A2/AD) environment. According to the USAF, that target environment includes: “Theater Ballistic Missile Launchers, Land Attack and Anti-Ship Cruise Missile Launchers, GPS Jammers, Anti-Satellite Systems, and Integrated Air Defense Systems. Key attributes of the SiAW will include Lethality, Responsiveness, Survivability, Range, and Internal Carriage. The F-35 is the USAF threshold platform for SiAW.”

The USAF fiscal year 2020 (FY 2020) budget estimates document, issued in March, notes, “The path to the SiAW capability is through the Navy Advanced Anti-Radiation Guided Missile-Extended Range (AARGM-ER) program with additions to the Universal Armament Interface (UAI), Warhead/Fuze, and Integration on the F-35.”

“In partnership with the AARGM-ER program, SiAW will enter the EMD phase of the acquisition cycle and focus on detailed design, test, integrations, and production activities of SiAW. The Department of Navy (DoN) will be the lead for development and the United States Air Force (USAF) will be the lead for F-35 Integration. The relationship between the DoN and USAF will be defined in three separate Memorandums of Agreement (MOA): Requirements MOA, Program Office MOA, and Service Acquisition Executive MOA,” the document added.

The current AGM-88E Block 1 AARGM has a stated range of 60+ n miles and an engagement speed of Mach 2+. Details of the expected range increment and engagement speed of the AARGM-ER have not been disclosed. ‘Increased Survivability’ is built into the Navy’s AARGM ER requirement, although the company has declined to comment on the specifics of its solution, noting only that “speed is in the equation. We’re going double the range in about the same amount of time, and you have to increase speed to achieve that; so speed in and of itself is an improvement to survivability. There are other aspects of our design solution that improve survivability, but these are not releasable.”

Northrop Grumman is also pursuing the development of a surface-launched stand-off derivative of the AGM-88E Block 1 variant AARGM to address, in the first instance, US Army long-range precision fire requirements.

The surface-launched AARGM (SLAARGM) concept provides for a spiral development of the AGM-88E Block 1 as a high technical readiness level stand-off supersonic, surface-to-surface strike weapon to engage land and maritime targets in complex A2/AD environments, through GPS/INS point-to-point or point-to-millimeter wave (MMW)-terminal guidance.

The company’s SLAARGM concept envisages utilisation of up to a nine-cell launcher developed by Northrop Grumman Marine Systems for application in both land- and maritime-based roles, with the SLAARGM effector supplied in a hermetically-sealed canister. This concept provides for an additional system element with a dedicated SLAARGM fire control system/C4I capability. While the SLAARGM derivative will be evolved from the baseline AGM-88E Block 1 AARGM, a company spokesperson told Jane’s that the potential future growth path for the surface-launched weapon includes leveraging the developmental AARGM-ER.


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