Flight Test Evaluation of a Run-time Stability Margin Estimation Tool

to identify eroding margins so that corrective action can be taken in a timely manner. ROME can be used in operational settings to identify adverse conditions such as vehicle icing, damage, and failures, and in ight test settings to minimize risk and expedite verication and validation. It uses a general approach that can be applied both to next-generation vehicles with advanced control systems, and as a retrot to the existing operational eet. A baseline version of the ROME tool was demonstrated in a ight test environment during a recent deployment of NASA Langley’s AirSTAR Testbed. The initial testing evaluated the near real-time system identication and stability margin estimation capabilities of ROME. The ight tests also aorded an opportunity to evaluate several key aspects of the software implementation including the interface to the real-time data stream from the AirSTAR Mobile Operation Station. The ight testing validated the baseline capabilities of the ROME tool, including near real-time system and margin identication.