Roxel has built and tested prototypes of a novel Coanda TVC nozzle. (Roxel/MBDA)
Rocket motor manufacturer Roxel has developed and demonstrated a novel thrust vector control (TVC) nozzle that seeks to exploit the Coanda effect to achieve deflection.
Prototyped and tested as part of the French/UK Materials and Components for Missiles Innovation Technology Partnership (MCM ITP) programme, the TVC nozzle device has completed cold gas firings to demonstrate performance capability. Hot gas trials are planned to follow.
The Coanda effect – named after the Romanian-born aeronautical engineer Henri Coandă – describes the phenomenon where a jet flow attaches itself to a nearby surface and remains attached even when the surface curves away from the initial jet direction. Disrupting this boundary layer can be used to impart a deflection: in this case, redirecting the exhaust flow from a solid rocket motor can be used to change the thrust vector.
Berlin Security Conference 2021: ESG to adapt Israeli combat cloud for Germany
25 November 2021
by Gareth Jennings
The already operationally proven OPAL combat cloud will form the basis of the NEOS system that ESG is to develop for Germany. (IAI via Janes/Gareth Jennings)
Elektroniksystem und Logistik (ESG) is to adapt an operationally proven Israeli combat cloud to the needs of the Bundeswehr, the German electronics and mission systems specialist announced on 24 November.
Speaking at the Berlin Security Conference, ESG's director of business development and sales, Simon Volkmann, said that the company is to utilise the Israel Aerospace Industries (IAI) Operational Avionics Layer (OPAL) to develop its Network Enabled Operations Support (NEOS) for the air assets of the German armed forces primarily, but for the other domains also.
Satellite communications provider Telesat Canada and its majority owner, US-based Loral Space & Communications, have completed their previously announced merger, according to the combined company.
The new entity, Telesat Corporation, said on 19 November that it has begun trading on the Nasdaq Global Select Market, where Loral had been listed, and on the Toronto Stock Exchange.
The transaction, which was first announced in November 2020, is designed to give the satellite operator the benefits of public ownership, including access to capital markets to fuel its growth. Telesat is developing a new constellation of low Earth orbit satellites to provide broadband Internet connectivity worldwide. The Lightspeed constellation will “meet the rigorous requirements of telecom, government, maritime, and aeronautical customers”, the company says.
Under the merger, Telesat Canada and Loral have become subsidiaries of Telesat Corporation, which is based in Ottawa, Canada. Loral continues to own 56% of US-based satellite communications business XTAR, which will transfer to the new company unless its minority owner, HISDESAT, a consortium of Spanish telecommunications companies, exercises an option to buy it. Option expiration terms have not been publicly disclosed.
Pentagon hunts for high-power microwave weapons to down drones
17 November 2021
by Ashley Roque
US Army officials want to evaluate high-power microwave (HPM) systems large enough to protect fixed sites from incoming drones and if they find promising ones, they plan to award subsequent prototyping contracts.
Charged with evaluating counter-drone technologies for the Pentagon, the army's Joint Counter-small Unmanned Aircraft System (C-sUAS) Office recently issued a request for HPM White Papers. Vendors have until 29 November to submit their paperwork about systems that can down class 1, 2, and 3 aerial drones.
“The HPM, ground-based aerial denial, is defined as solutions that utilise focused electromagnetic pulses from a fixed-ground location at various ranges with energy sufficient to destroy or defeat unmanned aerial systems over the air,” the service wrote. “HPM electronic attack results in physical damage to [the] targeted electronics or power cycling required to continue operations. Jamming or denial of communication links is not the focus of this effort and will result in not being selected.”
The Power of Geography: A conversation with Tim Marshall
In this episode of the Janes podcast, Tim Marshall, journalist and author of The Power of Geography, in conversation with Terry Pattar, examine how our politics, demographics, economies and societies are determined by geography.
Tim Marshall w...