Even with enormous advances in aircraft design, many aviators are left with no reliable way to urinate inflight.

Fatigue Management in Military Aviation DOD Instruction 1010.10 directs department leaders to “ [h]elp prevent and mitigate the effects of sleep deprivation among Service members.” ...

The frequency of these incidents has raised concerns within the aviation industry. Officials knowledgeable about military operations attribute these incidents to servicing concerns and pilot fatigue.