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Active rotor control to reduce noise and vibration

25 July 2017

Under some operating conditions, rotors are the main source of noise produced by a helicopter. To reduce this noise and the simultaneous vibrations, the German Aerospace Centre (Deutsches Zentrum für Luft- und Raumfahrt; DLR), together with Airbus Helicopters Deutschland, has tested active rotor control on a modern, five-blade rotor in a wind tunnel as part of the SKAT (Scalability and risk minimisation of technology) research project. The result was an approximately 30 percent reduction in noise.

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DLR supplies precision transponders to the Canadian Space Agency

19 July 2017

The calibration of radar satellites is a key research area at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR). "In the last few years, we have earned the undisputed status of an international calibration centre for radar satellites," says Alberto Moreira, Director of the DLR Microwaves and Radar Institute.

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German delegation completes marathon rounds of talks in Japan

4 August 2017

A delegation of representatives from the German space industry is visiting Japan from 3 to 7 July 2017 under the auspices of DLR, which is using this trip to continue strengthening its already positive relationship with Japan.

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Latest DLR Blog Updates

ROBEX Part 4: Ash, beetles and blustering winds

30 June 2017

<img align="right" alt="" src="http://www.dlr.de/blogs/en/ResourceImage.aspx?raid=385265">Dust is inescapable after four weeks of field research on Mount Etna: a tenaciously fine layer covers everything: equipment, transport crates and notebook keypads. It penetrates the mission container and sticks to hands and legs lathered in sunscreen.

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ROBEX Part 3: Hammering for science

28 June 2017

<img align="right" alt="" src="http://www.dlr.de/blogs/en/ResourceImage.aspx?raid=385170">Mount Etna is very close to being a substitute Moon for the planetary researchers of the ROBEX project – it is here that they find volcanic basalt in quantities similar to those of the constituents of the lunar soil. In addition, the Sicilian volcano is the only place in Europe that experiences earthquakes at a depth of up to 600 kilometres. Mount Etna is like the Moon in this respect as well, as Earth's lunar companion experiences most earthquakes 700 to 1100 kilometres below the surface. "Etna is the only place in Europe where we can measure earthquakes at a similar depth," says planetary researcher Martin Knapmeyer.

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DLR sites

DLR and Lufthansa Technik investigate biofuels in new study

7 June 2017

Biofuels have the potential to make air transport more climate-friendly and reduce dependency on fossil raw materials, since they are produced using renewable raw materials, such as oil plants, grain, algae and wood.

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Indian minister visits DLR

29 May 2017

Harsh Vardhan, Union Minister of Science and Technology, Earth Sciences of the Government of India, visited the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) on 29 May 2017 as part of the German-Indian Intergovernmental Consultations.

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