The 155 autoloader is a very important part of the hip and hip block improvement programs. This project proposes to investigate previous, current and proposed autoloaders and perform a design trade study to determine what the best attributes of each. The trade study is expected to produce two results, a recommendation of which of the studied autoloaders best meets the criterior set up for the study and a preliminary design and design specification that uses the best attributes of the studied systems. Concepts such as robotics and vision technology will be incorporated if sufficient performance gains can be demonstrated.