Description and flight test of a rollout and turnoff (ROTO) head-up display (HUD) guidance system

The ROTO system provided guidance that resulted in mean ROT values essentially the same as those for current clear-weather operations and standard deviation ROT values a factor of 1.5 to 2.0 less (depending on exit comparison). Assuming the pilots can follow the guidance in low visibility conditions, these ROT values imply that clear-weather runway capacity could be maintained in low visibility conditions. All the pilots liked the system and found the guidance easy to follow after a couple of training runs. In general, the pilots were able to control the aircraft ground speed along the runway to within 10 knots of commanded ground speed from the ROTO guidance.