23 juillet 2020 | International, Aérospatial
July 22, 2020 | By Brian W. Everstine
Rolls-Royce formally entered the competition to re-engine the B-52 as expected, offering its F130 engine already in use in some USAF aircraft to power the bomber.
The Air Force on May 19 issued its request for proposals for the B-52 Commercial Engine Replacement Program, with responses due on July 22 and a contract award expected in June 2021. In addition to Rolls-Royce, GE Aviation and Raytheon Technologies' Pratt & Whitney will compete for the award.
The service wants to buy 608 engines for 76 B-52s to keep the bomber flying through 2050. The bomber currently uses Pratt & Whitney TF33 engines, and the service is calling for fuel efficiency savings of about 30 percent and an increase in range of up to 40 percent.
Rolls-Royce, in a July 22 statement, said the F130 engine has “the perfect size and thrust, and features a modern, efficient, and proven design.” The engine, a variant of the BR725 commercial engine, is in use in E-11s and C-37s.
GE Aviation is offering the CF34-10 and Passport engines, touting that the company has already done re-engining for the KC-135, C-5, and U-2 programs along with providing engines for the B-1 and B-2 fleets. Pratt & Whitney is offering the PW800 engine, and the company has said it has expertise on the B-52, having provided the legacy powerplant.
https://www.airforcemag.com/rolls-royce-formally-enters-b-52-re-engining-competition/
17 mars 2023 | International, Autre défense
Dans "Apolline Matin" ce mercredi sur RMC et RMC Story, Emmanuel Lechypre se penche sur le classement mondial des ventes d’armes. En progression, la France se rapproche de la 2e place, occupée par la Russie.
8 juillet 2020 | International, C4ISR
July 2, 2020 - TNO has signed a contract with ESA to demonstrate cutting-edge optical communication technologies for future terabit-per-second telecom satellites. The TOmCAT project (Terabit Optical Communication Adaptive Terminal) will enable high-throughput laser communication between ground stations and satellites. This project is Phase 2 of TOmCAT, which started in 2017. It brings together key players in the Space and High-Tech industries, including: TNO, Airbus Defence & Space Netherlands, FSO Instruments (consortium partner Demcon), Hittech Multin (NL), Celestia-STS (NL), MPB Communications (CA), Airbus DS SAS (FR) and Eutelsat (FR), SES (LU). TOmCAT is a co-funded activity in which TNO, the companies involved, the Canadian Space Agency and the Netherlands Space Office invest through the ESAs ARTES Strategic Programme Line ScyLight. Key technologies include high-bandwidth adaptive optics, thermally stable opto-mechanics, high-power photonics, and high-throughput optical transceivers. TNO Space aims to enable secure broadband connectivity that will support the growing demand for data and increase communication efficiency. We also help stimulate economic growth in the Netherlands and Europe by enabling companies to realise new products, generate new business and improve their competitive position. TOmCAT is one example of these goals in practice. HOW DOES TNO CONTRIBUTE TO TOMCAT? TNO brings all parties together and integrates all expertise to: 1) Design the end-to-end Optical Feeder Link for high-throughput satellites. 2) Build and test cutting-edge technologies required for future Terabit Optical Ground Stations. 3) Build an end-to-end Optical Ground Terminal demonstrator and test it in a 10 km ground-to-ground link. This will show the technical feasibility of future terabit-per-second laser communication between ground and satellite terminals. TNO considers development in the TOmCAT project to be a major and important step towards the realisation of commercial Optical Ground Terminals and Optical Ground Stations for high-throughput Optical Feeder Links. Furthermore, TNO will work in the coming period, in parallel with TOmCAT phase 2, with Airbus Defence & Space Netherlands on business development and, in collaboration, position Airbus DS NL as future Original Equipment Manufacturer (OEMer) of these Optical Ground Terminals and Optical Ground Stations. TECHNOLOGY AND APPLICATION TOmCAT is a technology development project with the end goal of developing a commercial optical ground station product. With high-data-rate laser links, this ground station can communicate with the next generation of Very High Throughput Satellites. One of the innovative elements of TOmCAT is its ability to pre-correct the laser light with adaptive optics. When light moves between the surface of the Earth and space, it gets distorted due to the fluctuations in the atmosphere. TOmCAT measures the distortion of the received laser light from the satellite, and by applying the inverse of this distortion to the transmitted light, a robust communication link can be established. In order to enable this, high speed adaptive optics is required. An important objective for the project is to build a demonstrator to test and prove this concept. View source version on TNO: https://www.tno.nl/en/about-tno/news/2020/7/tno-has-signed-a-contract-with-esa-to-start-phase-2-of-tomcat/
16 novembre 2022 | International, Naval
The government vows to keep most of the work in Britain, following unions' fears that key skills could be outsourced to other countries.