Design requirements and operational constraints are reviewed for a small manually controlled flying vehicle which could provide astronauts with mobility for lunar exploration. Numerous flight trajectories and the vehicle performance have been analyzed and are presented. It is concluded that to attain the desired flight ranges, the flight velocities must be relatively high (200 fps or more). The range of thrust level required is determined. Flyer configuration is highly dependent on the method of control (either mechanical engine gimballing or kinesthetic control); the optimum method is still unresolved.