Boeing Begins MH-139A Grey Wolf Production

Sur le même sujet

• 

  6 septembre 2018 | International, Aérospatial

  Bell collaborates on Micro-Unmanned Aerial Systems

  Researchers from the U.S. Army Research Laboratory and Bell Helicopter met in June 2018 to focus on the development of micro unmanned aerial systems (UAS). The project surrounds what Bell describes as miniature, lightweight reconnaissance vehicles that soldiers can carry onto the battlefield and deploy in a confined space. The collaboration began after Bell representatives travelled to Adelphi, Maryland, to attend an open campus event at the U.S. Army Research Laboratory (ARL) in November 2016. After a year and a half of information sharing, the two parties signed a five-year cooperative research and development agreement (CRADA) in March 2018. “We're trying to get data on the fundamental level, to build up a knowledge base of vehicles, because their expertise is in designing the vehicles, whereas our expertise is the fundamentals of them,” said Dr. John Hrynuk, a mechanical engineer in ARL's Vehicle Technology Directorate (VTD). “We want new technology; they want new vehicles. Together, we want to enhance technologies for the soldiers – that's what makes it the absolute perfect collaboration.” Bell engineers Dakota Easley and Levi Hefner recently visited ARL to perform experiments on micro UAS using the facility's wind tunnel. Bell explains the visit was prompted by vehicle control challenges its researchers had observed in early flight testing. With the help of ARL scientists and equipment, according to Bell, the engineers were able to isolate their earlier challenges and improve the performance of the aerial vehicle. “The wind tunnel here at ARL has been beneficial in providing data that explains why certain things are happening on the control side. Now we're able to better analyze our tests to enhance the performance of our vehicles,” Hefner said. “This collaboration is great because we're heading into a new design space with these small vehicles.” https://www.wingsmagazine.com/news/bell-micro-uas-15855

• 

  11 février 2021 | International, Naval

  Boeing Is Refurbishing Harpoon Missiles for U.S. Navy Submarines

  Posted on February 9, 2021 by Richard R. Burgess, Senior Editor ARLINGTON, Va. — Boeing has begun work to return the Harpoon cruise missile to operational status in the U.S. Navy's submarine force after a more than 20-year absence. Boeing received an $10.9 million Naval Sea Systems Command contract late last month to refurbish 16 Harpoon missile capsules and four all-up rounds of encapsulated Block 1C Harpoon missiles for the Navy's submarines. Work is scheduled for completion by December 2022. The UGM-84A Harpoon Block 1C missiles will be integrated on the Navy's Los Angeles-class submarines. The UGM-84A is encapsulated to be fired from a torpedo tube and has a rocket booster to propel it above the surface of the water and into flight. “I am happy to report that we will have the first refurbished [Harpoon] missiles delivered to the fleet in [fiscal] ‘21,” said Rear Adm. Thomas Ishee, director of undersea warfare in the Office of the Chief of Naval Operations, speaking Nov. 7 at the Naval Submarine League's annual symposium in Arlington. In a demonstration in the 2018 Rim of the Pacific exercise, a Harpoon was fired from the Los Angeles-class attack submarine USS Olympia at a target ship, the first time one was fired from a U.S. Navy submarine since the UGM-84A Harpoons were withdrawn from the force in 1997. The UGM-84A is encapsulated to be fired from a torpedo tube and has a rocket booster to propel it above the surface of the water and into flight. “The Navy has a deep inventory of Harpoon Block IC missiles,” said Sally Seibert, director, Cruise Missile Systems at Boeing, in a statement. “These missiles can be refurbished and reintegrated into the fleet in a shorter timeframe, and at a fraction of the cost, compared to purchasing new missiles — and that is exactly what our team is doing.” The Harpoon cruise missile is a combat-proven, all-domain anti-ship missile used by the Navy and more than 30 international customers, a statement from Boeing said. “Evolving over the years to keep pace with emerging threats, the Harpoon Block II includes a GPS-aided guidance system that allows for autonomous, all-weather capability — and can execute both anti-ship and land-strike missions. The more advanced Harpoon Block II+ adds a data link that allows for in-flight targeting updates.” “The shelf life of the Harpoon missile allows us to maximize existing capability by bringing this weapon back to the submarine fleet,” Seibert said. “Customers who currently have Harpoon missiles in their inventory are prime candidates for refurbishments, or even upgrades, to add this extremely viable and cost-effective weapon to their arsenal.” Currently, more than 600 ships, 180 submarines, 12 different types of aircraft and several land-based launch vehicles across the world are integrated with Harpoon missiles, Boeing said. https://seapowermagazine.org/boeing-is-refurbishing-harpoon-missiles-for-u-s-navy-submarines/

• 

  15 février 2020 | International, Aérospatial

  Singapore Airshow 2020: ST Engineering unveils Veloce family of fixed wing VTOL UAVs

  Singapore defence prime ST Engineering has unveiled the Veloce family of hybrid fixed-wing/vertical take-off and landing (VTOL) unmanned aerial vehicles (UAVs) at the 2020 Singapore Airshow, which is being held at the Changi Exhibition Centre from 11-16 February. The company is showcasing two market-ready Veloce variants - the Veloce 15 (V15) and Veloce 60 (V60) - at the event, with both air vehicles centred on a common airframe design comprising a main fuselage pod that supports the type's payload, avionics, shoulder-mounted wings, and a rear-mounted piston engine that drives a two-bladed pusher propeller. The airframe also features four vertical-lift electric motors housed in booms attached to the underside of the wings, which in turn supports an inverted V-shaped tail assembly. Like other fixed-wing VTOL UAVs produced by manufacturers elsewhere in the world, both the V15 and V60 can be deployed without a runway or a dedicated launch and recovery system (LARS) due to their ability to take-off and land vertically using their electric motors, before transitioning to conventional flight when the appropriate altitudes have been reached. The V15 will feature a 3.7 m wingspan and a maximum take-off weight (MTOW) of between 16-17 kg as well as speed and endurance ranges of between 30-40 kt and 2-3 hours depending on its configuration, although it will typically carry a nose-mounted electro-optical/infrared (EO/IR) turret. In contrast, the larger and more capable V60 will feature a 5 m wingspan and a MTOW of between 50-70 kg, while flying at payload-dependent speeds of between 50-70 kt and staying aloft for 12-14 hours. It will also carry a nose-mounted EO/IR turret with provision for an optional laser rangefinder. https://www.janes.com/article/94301/singapore-airshow-2020-st-engineering-unveils-veloce-family-of-fixed-wing-vtol-uavs?from_rss=1