TRAJECTORY SOLUTION
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Rocket Conceptual Design
Rocket Trajectory Optimization
Guidance
Algorithms
Modeling
and Simulation
David F.
Williams is
a retired engineer living in
Huntsville, Alabama. He spent over 40
years in the determination of
quasi-optimum rocket trajectories
for endo-atmospheric
and earth-orbital applications. He now offers his services as a
consultant. Please contact him if he can be of any service.
During his career, Mr. Williams developed numerous trajectory
optimization
computer programs, developed and analyzed
various rocket guidance methods, and
modeled and simulated the performance of a wide variety of rocket
systems.
After retirement Mr. Williams developed a computer program named
ZOOM for the conceptual analysis and design of rockets and their
missions. ZOOM is operated via a graphical user interface and can
handle intercepts of spacecraft and RV targets, injections into
specified conics, and a variety of other missions.
Mr. Williams has also
developed an easy-to-use and
inexpensive text encryption program named Cipher Machine, a football computer game named SCRIMMAGE, and a zero-english pool game.
Get more information about ZOOM and the other software applications here.