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This video, from a NASA Social event at Armstrong Flight Research Center, shows an F/A-18 producing a regular sonic boom at 0:43 and and then a low “boom” by performing the dive maneuver at 02:34. NASA researchers are preparing for public tests of technology designed to reduce the noise of sonic booms

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03 July, 2018



Autonomous vehicles explained

Safran’s SimplyFly! light hearted series of video’s takes on autonomous vehicles - how will they work and what are the main challenges? Learn more about the topic by watching this video.

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20 June, 2018



Space Launch System - in numbers

Discover how engineers are outfitting the world’s most powerful rocket with sensors, cables and other equipment in this 2:40 video.

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15 May, 2018



 

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The FAA is asking for feedback on its proposed changes to the testing regimes for bird ingestion into engines. But what is the average size of a snow goose, the flocking bird responsible for the 2009 engine incident at LaGuardia the FAA is basing its tests on?

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Airbus, Rolls-Royce and Siemens to jointly develop hybrid-electric flight demonstrator

Airbus, Rolls-Royce, and Siemens are collaborating on developing a near-term flight demonstrator, which they describe as a significant step forward in hybrid-electric propulsion for commercial aircraft. The three companies made the announcement at the Royal Aeronautical Society in London, UK.

The E-Fan X hybrid-electric technology demonstrator is anticipated to fly in 2020 following a comprehensive ground test campaign, provisionally on a BAe 146 flying testbed, with one of the aircraft’s four gas turbine engines replaced by a 2MW electric motor. Provisions will be made to replace a second gas turbine with an electric motor once system maturity has been proven.

Airbus will be responsible for overall integration as well as the control architecture of the hybrid-electric propulsion system and batteries, and its integration with flight controls. Rolls-Royce will be responsible for the turbo-shaft engine, 2MW generator, and power electronics, while also working with Airbus on the fan adaptation to the existing nacelle and the Siemens electric motor.

Siemens will deliver the 2MW electric motors and their power electronic control unit, as well as the inverter, DC/DC converter and power distribution system. This comes on top of the E-Aircraft Systems House collaboration between Airbus and Siemens, launched in 2016, which aims at development and maturation of various electric propulsion system components and their terrestrial demonstration across various power classes.

The E-Fan X demonstrator will explore the challenges of high-power propulsion systems, such as thermal effects, electric thrust management, altitude and dynamic effects on electric systems and electromagnetic compatibility issues. The objective is to push and mature the technology, performance, safety and reliability enabling quick progress on the hybrid electric technology. The program also aims at establishing the requirements for future certification of electrically powered aircraft while training a new generation of designers and engineers to bring hybrid-electric commercial aircraft one step closer to reality.

“The E-Fan X is an important next step in our goal of making electric flight a reality in the foreseeable future. The lessons we learned from a long history of electric flight demonstrators, starting with the Cri-Cri, including the e-Genius, E-Star, and culminating most recently with the E-Fan 1.2, as well as the fruits of the E-Aircraft Systems House collaboration with Siemens, will pave the way to a hybrid single-aisle commercial aircraft that is safe, efficient, and cost-effective,” said Paul Eremenko, Airbus’ chief technology officer. “We see hybrid-electric propulsion as a compelling technology for the future of aviation.”

Paul Stein, Rolls-Royce, chief technology officer, said, “The E-Fan X enables us to build on our wealth of electrical expertise to revolutionise flight and welcome in the third generation of aviation. This is an exciting time for us as this technological advancement will result in Rolls-Royce creating the world’s most powerful flying generator. 

“Siemens has been driving innovation in core technology fields at full speed,” said Roland Busch, chief technology officer, Siemens. “In April 2016 we opened a new chapter in electric-mobility with the collaboration with Airbus. Building up electric propulsion for aircraft, we are creating new perspectives for our company and also for our customers and society. With the E-Fan X partnership, we now take the next step to demonstrate the technology in the air.”


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