Hi Carl, We have ROC SIM Pro and can help you do it if you provide the necessary info. Rick Date: Wed, 20 Aug 2014 14:45:42 -0700 From: Carl Tedesco <ctedesco@xxxxxxxxxxxxxx> Subject: [AR] dynamic stability I am starting the process for getting a class 3 waiver for a rocket launch. Most of the FAA required documentation looks straight forward. One piece of information they require is "The dynamic stability characteristics for the entire flight profile." A static stability analysis is straight-forward, but I have never done a dynamic stability analysis. How have folks on this list addressed this requirement? Is this software driven analysis or just hand-calculations? Does anyone have an analysis they could share? If software analysis is the norm, can anyone point me to affordable software? --- Carl