Lockheed Martin X-56
The Lockheed Martin X - 56A test vehicle is a U.S. Air Force to study the active flutter suppression in the context of multi -utility Aeroelastic Demonstration Program ( MAD). It is hoped that based on the findings weight savings in the wing structure of future aircraft.
The aircraft is similar in configuration available today reconnaissance drones, ie high aspect ratio wing obtained. To facilitate the flight tests, a modular concept is provided with interchangeable wings. This should have a different stiffness depending on the version. For damping the vibrations at the trailing edge of the wing ten parking spaces, distributed over the entire range, provided. Due to the high risk involved in such Fluttertests an unmanned approach was chosen, with the flight tests will be carried out at low speed and altitude. In addition, the aircraft is to be equipped with a parachute, which enables recovery in the event of a structural failure of the wing.
The first flight took place on July 26, 2013 at Edwards Air Force Base, after he had originally been planned for July 2012. After completion of the trials by the USAF, NASA wants to take over the aircraft and continue the test program with additional self-developed wings.