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Sikorsky-Boeing new Helicopter - SB1 Defiant & M110A1 Rifle

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Sikorsky-Boeing new Helicopter - SB1 Defiant & M110A1 Rifle

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  • Sikorsky-Boeing new Helicopter - SB1 Defiant & M110A1 Rifle

    See the experimental Sikorsky-Boeing Defiant Helicopter hit a new speed milestone
    Valerie Insinna
    Defense News - June 16, 2020, 6:07 PM UTC


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    WASHINGTON - The Sikorsky-Boeing SB-1 Defiant coaxial demonstrator hit a new speed record of 205 knots during a June 9 flight test, the companies announced Tuesday.

    The test marks a major step forward as the Sikorsky-Boeing team continues to march toward a speed requirement of 230 knots, Jay Macklin, Sikorsky’s director of future vertical lift business development, said during a June 16 roundtable with reporters.

    The flight, which was piloted by Sikorsky test pilot Bill Fell and Boeing test pilot Ed Henderscheid, occurred at Sikorsky’s Development Flight Test Center in West Palm Beach, Florida.

    “Exceeding 200 knots is significant also because it’s beyond any conventional helicopter speed, and we understand that speed and low-level manueverabily is critical to the holistic survivability in a future FVL environment”, Macklin said, using an acronym for future vertical lift, the U.S. Army’s effort to build next-generation rotorcraft.

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    The Defiant is one of two rotorcraft taking place in a competitive demonstration and risk-reduction effort ahead of the Army’s Future Long-Range Assault Aircraft program. The Army envisions FLRAA as a replacement for the AH-64 Apache and UH-60 Black Hawk helicopters in the early 2030s.

    The Defiant, a compound helicopter with coaxial rotors, will compete against Bell Helicopter’s V-280 Valor tilt rotor when the FLRAA program of record starts in 2022.

    Fell said that during the latest Defiant flight demonstration, he was able to hit speeds of 205 knots using less than 50 percent of the aircraft’s installed propeller power. “Expect a lot more in the future because we have a lot more [propeller] power to apply to this machine,” he said.

    Fell added that he believes the team will fly Defiant at maximum speeds - which could be in excess of 250 knots - in a matter of “a few months”,
    but that will depend on the pace of ground tests using the propulsion system test bed, or PSTB. The Sikorsky-Boeing team is carrying out extensive testing with the PSTB to wring out potential issues on the ground before moving to flight demos.

    “It’s a little bit different when you’re putting power on that prop and you’re going through the air at 200 knots versus statically on the ground,” Fell said. “We have to do some MacGyver engineering on the [propeller] stand to keep the loads in check because they are significantly higher here on the test stand without the airflow through it that you have in flight.

    “As we clear the [propeller] on the ground stand, that gives me the added confidence when we get up there in flight.”

    The Defiant has clocked in 18 flight hours since its first flight in March 2018, and it has put 113 hours of testing on the PSTB. In January, the Defiant flew for more than 100 knots for the first time.

    Macklin acknowledged that the COVID-19 pandemic has had a small impact as Boeing and Sikorsky take steps to protect its employees. But for the most part the flight test program has remained on track, he said.

    Added Fell: “If we fly once a week, we’re pretty happy with that, and if we fly every other week, we’re happy with that as well. But we have to continue to make progress and run the test stand.”

    Jen Judson in Washington contributed to this report.


    ________________________



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    M110A1 Sniper Rifle/ US Army


    First Army Unit Gets New Squad Designated Marksman Rifle
    Matthew Cox
    June 16, 2020, 1:56 PM PDT


    First Army Unit Gets New Squad Designated Marksman Rifle Soldiers from the 3rd Infantry Division this month became the first combat troops to receive the Army's new M110A1 Squad Designated Marksman Rifle.

    Army weapons officials fielded the new semi-automatic 7.62x51mm SDMR to soldiers from the 1st Armored Brigade Combat Team at Fort Stewart, Georgia in early June, according to a service announcement.

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    The Army adopted the variant of the Heckler & Koch G28/HK417 as part of an effort to make infantry squads more lethal at longer ranges ahead of the service's planned fielding of the new 6.8mm Next-Generation Squad Weapon system in 2023.

    Sergeants from the Raider brigade learned how to disassemble and assemble the new rifles before taking them to the sniper range for zeroing with live rounds.

    "We have given them a rifle that is precise and capable of closing the capability gap of 300-600 meters, which means it fills the maximum firing distance gap between the standard issue rifle and the sniper rifle", David Parris, a former infantryman assigned to the team civilian experts from the Army's Tank-automotive and Armament Command out of Detroit, said in the Army's release.

    Once the fielding process is complete, these sergeants will act as trainers for squad designated marksmen in their units, according to the release.

    The Army began pushing to arm infantry squads with more potent weapons in 2017, when leaders told Congress that the service's M855A1 5.56mm enhanced performance round would not penetrate modern enemy body armor. Ultimately, the Army plans to equip infantrymen with rifle and automatic rifle variants of the NGSW, which is chambered to fire a specially-designed 6.8mm projectile.

    As a short-term fix, the Army selected the new M110A1 -- a weapon it originally chose in 2016 as its new Compact Semi - Automatic Sniper System -- to serve as the SDMR. It will be used with the service's new 7.62mm enhanced performance round to give squads more penetrating power to defeat enemy body armor, Army officials say.

    "This weapon is an upgrade to the whole squad layout, said Sgt. Patrick Nissen, a scout from the 1st ABCT's 5th Squadron, 7th Cavalry Regiment. "I shoot long range, both in the Army and recreationally, and I really like getting down behind this weapon... It is a great rifle, and I really do enjoy it."

    During the war years, soldiers used the Enhanced Battle Rifle 14 in Iraq and Afghanistan. A modernized version of the 7.62mm M14, the EBR was equipped with an adjustable aluminum stock with pistol grip, scope and bipod legs and was capable of reaching out to hit enemy fighters at longer ranges.

    But it was heavy, weighing just under 15 pounds. The M110A1 SDMR weighs about 11 pounds.

    Heckler & Koch Defense Inc. officials announced last year that they planned to deliver up to 6,000 new SDMRs to the Army this year. The rifles are manufactured by H&K in Oberndorf, Germany and then shipped to the H&K-USA facility in Columbus, Georgia, where H&K-USA workers install scopes and mounts purchased by the Army under a separate agreement.

    Matthew Cox can be reached at matthew.cox@military.com.


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