<p>In this paper, we comprehensively present
new advancements towards the working-principle, algorithm, prototype setup and
experimental characterization and feasibility demonstration of a new aircraft
helmet mounted display aiming system. More specifically, we describe detailed
design methodology and algorithm of an eye tracking based HMD aiming system. We
also present a proof-of-concept prototype and conduct experiment tests in lab
environment to characterize the performance of the proposed system. Lastly,
through a comparison with related works, we demonstrate the advantages of the proposed
HMD system for free head movement and no additional light source required.</p>