14 décembre 2024 | International, Terrestre
Army, Navy conduct key hypersonic missile test
The successful tests brings both services closer to fielding the long-awaited system.
14 mai 2018 | International, Aérospatial
Army, Uber will partner on silent rotor technology for UAVs
By: Charlsy Panzino
The Army is partnering with Uber to create safer, more lethal unmanned aerial vehicle missions.
The new effort between the Army Research Laboratory and the rideshare company, announced on Tuesday, aims to create silent rotor technology.
The goal is to reduce the noise caused by traditional UAV rotors.
“When UAVs are doing an [intelligence, surveillance and reconnaissance] mission, they're out there collecting or observing to collect intelligence or to do surveillance,” Jaret Riddick, director of ARL's Vehicle Technology Directorate, told Army Times after the announcement.
That mission is hampered, however, when the adversary can hear the UAV coming, Riddick said.
“They know a certain noise in the distance means a certain type of operation is underway,” he said. “When you can do that with the advantage of not being detected ... it changes how you execute a mission.”
Uber Elevate, under which the air taxi side of the company falls, is interested in noise-reduction technology because its vehicles would be operating in dense urban areas.
Since Uber is a technology company, ARL will build the UAVs for testing the technology.
One kind of technology Uber is looking at to solve the noise problem is the idea of having stacked rotors on a vehicle that spin in the same direction.
Traditionally, UAVs have stacked rotors that spin in opposite directions.
“When those rotors are spinning in opposite directions, they create a type of turbulence that contributes to noise in the operation,” Riddick said. “By having them spin in the same direction and adjusting their position to one another, research has shown that using this technique can offer advantages in performance while reducing the noise compared with traditional operations.”
One of these performance advantages is more lift capability, he said.
Last year, Uber announced the Dallas-Forth Worth area as its first location for flight demonstrations in 2020, and Riddick said Uber will collaborate with ARL-South researchers in Austin.
Uber and ARL-South will build the infrastructure needed for testing, Riddick said, adding that progress will be checked every six months.
“Uber is proud to be partnering with ARL on critical research on flying vehicle innovations that will help create the world's first urban aviation rideshare network,” Eric Allison, head of Uber Elevate, said in a news release.
“Our first jointly-funded project will help us develop first of its kind rotor technology that will allow for quieter and more efficient travel. We see this initial project as the first of many and look forward to continued collaboration with the lab on innovations that will make uberAIR a reality.”
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2 décembre 2020 | International, Terrestre
BAE Systems awarded £2.4 billion munitions contract to equip UK Armed Forces
November 30, 2020 - BAE Systems has been awarded a new 15-year contract for the supply of munitions to the UK Ministry of Defence (MOD). The contract, worth £2.4bn, will sustain approximately 4,000 jobs across the UK. This new agreement, which will supersede the current contract due to conclude at the end of 2022, will guarantee the delivery of munitions products and engineering support to the UK Armed Forces. BAE Systems directly employs 1,260 people who are involved in either munitions manufacturing or test and evaluation at five sites across the UK; Glascoed in Monmouthshire, Radway Green in Cheshire, Washington in Tyne & Wear, Bishopton near Glasgow, and Ridsdale in Northumberland. It is anticipated that the contract will also help sustain a further 1,500 jobs in the UK supply chain and support a further 1,300 jobs induced by consumer spending in economies local to sites. The agreement enables BAE Systems to invest £70 million on the refurbishment and upgrade of manufacturing lines, with 75% of this value being invested by 2026. The Company will also spend up to £350m with UK-based companies on raw materials and machine components. Charles Woodburn, Chief Executive, BAE Systems, said: “This contract secures the future of a highly technical and critical industry which supports thousands of manufacturing jobs in several areas throughout the UK. By investing in new technology and skills to further develop our expertise, we can continue to deliver essential sovereign capability to the Armed Forces at competitive prices.” Defence Minister Jeremy Quin said: “This vital multi-billion pound contract will provide our service men and women with fire power on the front line for years to come whilst investing in British industry, British jobs and British infrastructure. Defence underpins hundreds of thousands of jobs across all four corners of the nation, and ongoing investment is crucial as we work together to build back better and stronger from the Covid-19 pandemic.” The contract, called the ‘Next Generation Munitions Solution' (NGMS), is due to commence in January 2023 and will succeed the current ‘Munitions Acquisition, the Supply Solution' (MASS) contract, which commenced in 2008. It represents the enduring partnership between BAE Systems and the UK Armed Forces, particularly the British Army. Contact Default Profile ImagePhilippa Mason Media Manager Head Office Corporate Communications +44 (0)7384 249518 View source version on BAE Systems: https://www.baesystems.com/en/article/bae-systems-awarded-gbp-2-4-billion-munitions-contract-to-equip-uk-armed-forces
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13 novembre 2024 | International, Terrestre
Poland hails opening of US missile base as sign of its security