X-56A To Begin Active Flutter-control Tests

By Graham Warwick
Source: Aerospace Daily & Defense Report

Under the AFRL program, Lockheed is to demonstrate it can accurately predict flutter onset and actively suppress the three main aeroelastic instabilities: the rigid-body phugoid and first and second bending-torsion modes.

Flutter will be stimulated deliberately. The wing houses water ballast that will be moved in flight to change the mass distribution and mode frequencies, and prove the control system can suppress the instabilities in real time.


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