Army researchers will study whirl flutter behavior to determine the viability of new tiltrotor analysis tool NORFOLK, Va. -- After more than three years in development, a team of U.S. Army researchers ...
Lilium has begun windtunnel tests of a 40%-scale model of its electric vertical take-off and landing Lilium Jet. Complete with working engines and flap actuators, the model is being used to obtain ...
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