Extensive experience in GNC project leadership, nonlinear and modern control, multi-body vehicle dynamics, state estimation, failure analysis and recovery, GNC sensor integration, GNC requirements and process definition, and GNC simulation development/analysis.

Expert in space vehicle ascent and on-orbit dynamics and control, structural flex dynamic interaction, propellant slosh, spin stabilization, and filter/control design.

Developed vehicle dynamics simulations and control designs for numerous control approaches such as thrust vector control, nonlinear phase plane control, vehicle load relief, torque equilibrium estimation, and control moment gyro control/desaturation.

Experienced in GNC analysis for multiple manned and unmanned vehicles, including Ares I, Ares I-X, Space Shuttle, Space Station, AERCam, Russian MIR, Russian Zarya, Boston University Terries, Hubble Space Telescope and Andrews Space Vehicle.