Ungs T J
U.S. Coast Guard, Dayton, Ohio.
Aviat Space Environ Med. 1989 Nov;60(11):1099-101.
U.S. Coast Guard helicopter pilots were questioned on the occurrence of the vection illusion while flying over water under different light and sea conditions. A total of 267 (79.9%) pilots completed the study questionnaire. The illusion of vection was experienced by 248 (92.5%) of these pilots. The majority of the pilots, 209 (84.6%), reported that dark rather than light visual conditions increased the likelihood of experiencing vection. Vection was considered likely to occur over rough seas by more pilots [114 (46.2%)] then over smooth seas [81 (37.8%)]. Several pilots commented that they had responded to the illusion with aircraft movement. The vection illusion is a common experience among helicopter pilots while flying over open water. Low light conditions and rough sea states are conducive to experiencing the vection illusion. Pilots may respond to the illusion with aircraft control movements, which raises flight safety concerns.
美国海岸警卫队直升机飞行员被问及在不同光照和海况下飞越水面时是否会出现运动错觉。共有267名（79.9%）飞行员完成了研究问卷。其中248名（92.5%）飞行员经历过运动错觉。大多数飞行员，即209名（84.6%）报告称，黑暗而非明亮的视觉条件会增加出现运动错觉的可能性。认为在波涛汹涌的海面上比在平静的海面上更有可能出现运动错觉的飞行员更多[114名（46.2%）对81名（37.8%）]。几名飞行员表示，他们曾因这种错觉而操控飞机。运动错觉是直升机飞行员在飞越开阔水域时的常见体验。低光照条件和波涛汹涌的海况有利于出现运动错觉。飞行员可能会因这种错觉而进行操控飞机的动作，这引发了对飞行安全的担忧。
