Control of the Kistler K-1 first stage reorientation prior to entry

摘要

The control design for the Kistler K-1 first stage reorientation maneuver is presented. ^The reorientation maneuver follows the main engine burn that places the first stage on a trajectory to return it to the landing site. ^The design takes advantage of the available aerodynamic moment to accelerate the first stage in the direction of the desired orientation for entry. ^The maneuver takes place near the apex of the first stage return trajectory, a region of low dynamic pressure. ^Small Attitude Control System thrusters are used to stabilize the vehicle during the maneuver. ^The maneuver must therefore conclude prior to reentry. ^This paper also presents a method for incorporating this time constraint into the design. ^(Author)