This working paper documents preliminary open loop analysis of the Lockheed Martin BFF models. These models
were delivered to Systems Technology Inc from the University of Minnesota under a different contract. The focus for this study is on the rigid body dynamics which are in the lower frequency range. This vehicle has high coupling between rigid body and flexible dynamics so traditional classic rigid body
modes do not exist. Regardless, the low speed models do exhibit some behavior familiar to traditional
aircraft dynamic modes (e.g., short period, phugoid, dutch roll, roll subsidence, spiral).
NASA NRA, "Lightweight Adaptive Aeroelastic Wing for Enhanced Performance Across the Flight Envelope," NRA NNX14AL36A, Mr. John Bosworth Technical Monitor.
Preliminary Open Loop Analysis of BFF Models: Concentrating on low frequency dynamics.
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