G Tolerance During Open- vs. Closed-Loop G-Time Control.

Background: +Gz tolerance is traditionally determined in centrifuges with open-loop G control, i.e., the centrifuge is under operator control (open loop), and thus the test subject is unable to influence the Gz load.

Use of an adjustable hand plate in studying the perceived horizontal plane during simulated flight.

Background: Quantitative data on spatial orientation would be valuable not only in assessing the fidelity of flight simulators, but also in evaluation of spatial orientation training. In this study a manual indicator was used for recording the subjective horizontal plane during simulated flight.

Methods: In a six-degrees-of-freedom hexapod hydraulic motion platform simulator, simulating an F-16 aircraft, seven fixed-wing student pilots were passively exposed to two flight sequences.

Tactile cueing effects on performance in simulated aerial combat with high acceleration.

Introduction: Recent evidence indicates that vibrotactile displays can potentially reduce the risk of sensory and cognitive overload. Before these displays can be introduced in super agile aircraft, it must be ascertained that vibratory stimuli can be sensed and interpreted by pilots subjected to high G loads.

Methods: Each of 9 pilots intercepted 32 targets in the Swedish Dynamic Flight Simulator.

Memory performance during G exposure as assessed by a word recognition task.

Background: Pilots of modern fighter aircraft are exposed to substantial physiological and mental stressors. The objective of this study was to investigate how memory performance, in terms of encoding and/or retrieval processes, was affected by sustained +Gz exposure.

Method: There were 18 healthy men ranging from experienced fighter pilots to novice riders who participated.