NASA has signed agreements with the German Aerospace Center (DLR) to develop revolutionary rotorcraft, in addition to solutions for decreasing aircraft noise.

The agreements were signed by Jaiwon Shin, associate administrator for NASA’s Aeronautics Research Mission Directorate, and Rolf Henke, DLR’s Executive Board Member for Aeronautics Research during the Paris Air Show.

The new agreements add to a deal that was established in December 2010 between NASA and DLR. That agreement stipulated that the two agencies will work together on new techniques in an attempt to predict the noise produced by aircraft systems and also come up with guidelines for comparison.

According to Shin, “NASA and DLR have had a successful research relationship for many years now. These agreements will ensure that productive collaboration continues as we work together solving challenges that will benefit a global aviation community and flyers worldwide”.

The agencies will be conducting hi-fi noise tests on two virtual aircraft models. The models will be compared to acoustic measurements taken by DLR on earlier scientific flights. The two models will signify an aircraft with over-wing turbofans in addition to an aircraft with under-wing turbofans. Scientists intend to develop noise reduction technologies, which do not lead to problem for the environment and also increase efficiency.

The new agreements will allow the agencies to work together for developing new imaging technology in order to examine the way air moves above helicopter blades in the time of use.