Joseph A Post

Title: Innovations of Joseph A. Post in Rotary Wing Aircraft Technology

Introduction

Joseph A. Post is an accomplished inventor based in Burke, Virginia, with a notable portfolio of three patents. His work primarily focuses on advancements in rotary wing aircraft technology, contributing significantly to the field of aviation.

Latest Patents

One of his latest patents is a "Vertical Control System for Rotary Wing Aircraft." This innovative system receives inputs from a displacement collective stick and a sidearm controller. It provides a set point for the vertical rate of change of the helicopter based on a vertical lift command signal from the sidearm controller. The set point serves as a reference for an altitude rate of change feedback path, while an integrated value of the set point is utilized for an altitude feedback path. Additionally, the set point is input to a feedforward control path that employs an inverse vehicle model to generate a command signal indicative of the necessary aircraft collective pitch to achieve the desired set point. The signals from all three paths are summed to produce a signal that backdrives the displacement collective, controlling the main rotor collective pitch.

Another significant patent is the "Hover Position Hold System for Rotary Winged Aircraft." This system utilizes a ground-plane-referenced acceleration signal and a Doppler velocity signal, processed by a complementary filter to provide a complementary velocity signal. This signal is transformed into an inertial coordinate referenced velocity signal, which is combined with a GPS position signal to generate a complementary position error signal. This error signal is then transformed to a ground-plane-referenced position error signal and summed with a wind speed signal to provide a pitch command signal. A similar approach is used to generate a roll command signal, with the system being gated by signals that determine whether the aircraft meets predetermined flight conditions.

Career Highlights

Joseph A. Post has made significant contributions to the field of aviation through his innovative patents. His work at United Technologies Corporation has allowed him to develop cutting-edge technologies that enhance the performance and safety of rotary wing aircraft.

Collaborations

Throughout his career, Joseph has collaborated with notable colleagues, including Phillip J. Gold and Lorren Stiles. These partnerships have fostered an environment of innovation and creativity, leading to advancements in aviation technology.

Conclusion

Joseph A. Post's contributions to rotary wing aircraft technology through his patents demonstrate his expertise and commitment to innovation in the field. His work continues to influence the aviation industry