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  16 mars 2020 | International, Aérospatial

  Japan unveils its hypersonic weapons plans

  By: Mike Yeo MELBOURNE, Australia — Japan has outlined its research and development road map for its homegrown, standoff hypersonic weapons, confirming that it is seeking an incremental growth in capability and providing more details about the kinds of threats it is targeting with this new class of weapon. In a Japanese-language document published on the Acquisition, Technology and Logistics Agency website, the government said two classes of standoff hypersonic systems will be deployed — the Hypersonic Cruise Missile (HCM) and the Hyper Velocity Gliding Projectile (HVGP). The former will be powered by a scramjet engine and appears similar to a typical missile, albeit one that cruises at a much higher speed while capable of traveling at long ranges. The HVGP, on the other hand, will feature a solid-fuel rocket engine that will boost its warhead payload to a high altitude before separation, where it will then glide to its target using its altitude to maintain high velocity until impact. The agency also provided more details regarding warhead payloads, with different warheads planned for both seaborne and land targets. The former will be an armor-piercing warhead designed specifically for penetrating “the deck of the [aircraft] carrier,” while a land-attack version will utilize a high-density, explosively formed projectile, or EFP, for area suppression. Area suppression effects for the latter will be achieved via the use of multiple EFPs, which are more commonly known as a shaped charge. An EFP is made up of a concave metal hemispherical or cone-shaped liner backed by a high explosive, all in a steel or aluminum casing. When the high explosive is detonated, the metal liner is compressed and squeezed forward, forming a jet whose tip may travel as fast as 6 miles per second. Japan's road map also revealed the country is taking an incremental approach with regard to designing the shapes of warheads and developing solid-fuel engine technology, with plans to field early versions of both in the 2024 to 2028 time frame. They are expected to enter service in the early 2030s. The agency expects both systems to navigate via satellite navigation with an inertial navigation system as backup. Japan is seeking to establish a network of seven satellites to enable continuous positioning for its self-defense forces, which will enable it to provide continuous navigation data without relying on foreign satellites. Warhead guidance is achieved via either radio-frequency imaging converted from doppler shift data — which the government agency said will be able to identify stealthy naval targets in all weather conditions — or an infrared seeker capable to discriminating specific targets. Japan has been conducting R&D into various areas related to hypersonic weapons for a number of years, although most of it was to benefit other fields like satellite navigation and solid-fuel rockets. More work remains, however, in areas like hypersonic guidance systems, warhead and missile-body thermal shielding, and hypersonic propulsion systems in order for Japan to be able to field a viable standoff hypersonic weapons capability. https://www.defensenews.com/industry/techwatch/2020/03/13/japan-unveils-its-hypersonic-weapons-plans/

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  15 octobre 2021 | International, Aérospatial

  New products featured at NBAA-BACE 2021 - Skies Mag

  Skies caught up with six companies at the 2021 NBAA convention in Las Vegas, Nevada, who have launched new products in the past year.

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  28 septembre 2018 | International, Naval

  Navy Awards Ingalls 6 Destroyers, Bath Iron Works 4 in Multiyear Deal; Ingalls to Build Both 2018 Ships

  By: Megan Eckstein The Navy awarded six of its next Arleigh Burke-class destroyers to Ingalls Shipbuilding and four to General Dynamics Bath Iron Works, in a combined $9-billion purchase right at the end of the fiscal year. The two companies had been competing for work in a five-year multiyear procurement (MYP) deal that would cover at least 10 Flight III destroyers. The contracts span Fiscals Years 2018 – which ends on Sunday – through 2022. “These contract awards are further evidence of the Navy's continued delivery of lethal capacity to the nation with a sense of urgency while ensuring best value for the taxpayer,” Navy acquisition chief James Geurts said in a Navy news release. “The Navy saved $700 million for these 10 ships by using multiyear procurement contracts rather than a single year contracting approach. We also have options for an additional five DDG 51s to enable us to continue to accelerate delivery of the outstanding DDG 51 Flight III capabilities to our Naval force. We executed this competition on a quick timeline that reflects the urgency in which the Navy and our industry partners are operating to ensure we meet the demands of the National Defense Strategy.” Ingalls Industries' contract is worth $5.1 billion and covers two ships in FY 2018 and one a year in FY 2019 through 2022. It also includes options for additional ships, which may be subject to a future competition with BIW. Bath Iron Works' contract is valued at $3.9 billion and covers one ship a year in 2019 through 2022 – and none in the short-term in 2018. According to the Navy statement, “each shipbuilder's contract contains options for additional ships in FY18/19/20/21/22, providing the Navy and/or Congress flexibility to increase DDG 51 build rates above the 10 MYP ships in the Navy's FY 2018 budget request, if appropriated.” Lawmakers in the House and Senate armed services committees have pushed for faster acquisition of the destroyers, and in the FY 2018 National Defense Authorization Act they authorized the Navy to enter into a multiyear procurement contract with the two builders for as many as 15 destroyers – three a year, compared to the previous shipbuilding rate of two a year. The lawmakers on the appropriations committees only provided money to buy two ships in 2018, but they did fund three DDGs in the 2019 spending bill, which the Senate passed last week and the House passed this week. It is unclear if that third ship in FY 2019 would have to be competitively awarded or if the Navy would be allowed to select a shipyard based on schedule, performance or other factors – the contract announcement notes the options “may” be subject to a competitive process. Program officials had been mum during the competition on their acquisition strategy and how to handle options for additional ships. All the ships covered under this pair of contracts is for the Flight III configuration, which is built around the powerful AN/SPY-6(v) Air and Missile Defense Radar. “This procurement will efficiently provide Integrated Air and Missile Defense capability for our future fleet while strengthening our critical shipbuilding and defense industrial base,” DDG-51 program manager Capt. Casey Moton said in the news release. “The Navy is proud to be working alongside the dedicated shipbuilders at BIW and Ingalls to continue to deliver these warships to the fleet.” Moton told USNI News in a December 2017 interview that the contracts would be structured in such a way that additional ships – beyond the previous two-a-year rate – could be added easily if the Navy deemed it a priority in its spending request or if lawmakers wanted to add in more funding. With this contract award, the two shipyards – who, for a time after the production line had restarted remained neck-and-neck on contract awards and deliveries – will further diverge. Ingalls Shipbuilding was awarded a contract in June 2017 to begin work on its first Flight III ship, DDG-125. Two months later, Bath Iron Works was awarded a contract that would have the yard build DDG-126 with a Flight III configuration but DDG-127 in the older Flight IIA design, like the rest of the ships in the previous multiyear procurement contract. Though Navy and congressional officials would not comment while the competition was occurring, Bath Iron Works had been challenged to balance the Arleigh Burke-class program and the DDG-1000 Zumwalt-class destroyer program. Keeping DDG-127 – which Congress incrementally funded in FY 2016 and 2016 – at the Flight IIA design would help ease the yard into Flight III production. The yard will not be building any new destroyers in FY 2018, according to the contract announcement, whereas Ingalls will take on two Flight III ships. https://news.usni.org/2018/09/27/navy-awards-ingalls-6-destroyers-bath-iron-works-4-in-multiyear-deal-ingalls-to-build-both-fy-2018-ships