  A new dynamic control algorithm in order to direct the trajectory of a glider
to a pre-assigned target point is proposed. The algorithms runs iteratively and
the approach to the target point is self-correcting. The algorithm is
applicable to any non-powered lift-enabled vehicle (glider) travelling in
planetary atmospheres. As a proof of concept, we have applied the new algorithm
to the command and control of the trajectory of the Space Shuttle during the
Terminal Area Energy Management (TAEM) phase.
