  Practical adaptive control implementations where human pilots coexist in the
loop are still uncommon, despite their success in handling uncertain dynamical
systems. This is owing to their special nonlinear characteristics which lead to
unfavorable interactions between pilots and adaptive controllers. To pave the
way for the implementation of adaptive controllers in piloted applications, we
propose an adaptive human pilot model that takes into account the time delay in
the pilot's response while operating on an adaptive control system. The model
can be utilized in the evaluation of adaptive controllers through the
simulation environment and guide in their design.
