There are some better (where better==lighter, cheaper, less training) systems for field evacuation such as the Fulton surface-to-air recovery system: https://en

There are some better (where better==lighter, cheaper, less training) systems for field evacuation such as the Fulton surface-to-air recovery system: https://en.wikipedia.org/wiki/Fulton_surface-to-air_recovery_system https://en.wikipedia.org/wiki/Fulton_surface-to-air_recovery... I'm sure a modern version of this system could solve the tied up hands problem, as you mention. Maybe it'd be a useful system for maintenance on a large craft like an aircraft carrier.