Abstract : This is a summary of research conducted on the high-G onset Air Force Research Laboratory centrifuge at Brooks City-Base TX. G-LOC and A-LOC research on the centrifuge is summarized. It was found that the G-LOC episode lasts longer than the nominal 24 sec previously described. It was found that pilot performance can be impaired up to EO sec after a G-LOC. No adverse effect of sustained acceleration was observed in Subjects who had PRK-treated eyes. There has been a proposal to eliminate the counter-pressure vest in pilots flying high- performance aircraft. Subjects reported no adverse effects of using Positive Pressure Breathing without the counter-pressure vest. The Navy's Smart Aircrew Integrated Life Support System (SAILSS) was evaluated on the centrifuge. The SAILSS is an advanced development project for the Navy with the objective of developing the next-generation aircrew life Support system. The Human Information Processing under Dynamic Environment program was evaluated on both the Brooks and Wright-Patterson AFB centrifuges.