| − | When the [[aviator]] experiences loss of [[situational awareness]] with regard to the [[position]] and [[motion]] of his [[aircraft]] or himself.
| + | '''Spatial disorientation''' is when the [[aviator]] experiences loss of [[situational awareness]] with regard to the [[position]] and [[motion]] of his [[aircraft]] or himself.<ref>http://www.usaarl.army.mil/hmdbook/cp_011.htm</ref> |